Each version's release post, then its changes. To see every change, visit the GitHub repository.
Version 7 · November 2026
Optional accounts that keep your projects on every device, a new My Library, posting projects to Ravelry, gallery pages you can update, and simpler navigation and range editing.
Read the Release PostVersion 7.0.0
Accounts Sign in with Google to keep your projects, yarn palettes and preferences in an account and open them on any device. They sync by themselves, and the first time you sign in you can choose which projects and palettes already in your browser to add. Your account starts with a made-up display name, so your real name is never shown unless you choose it. Accounts are optional. Read all about it in the Version 7 release post.
Gallery Pages & Ravelry Publish a project or yarn palette to the gallery from its menu in My Library, or the Project or Palette menu. Each one has a single gallery page that updates when you change it, shows your display name or stays anonymous, and follows it into the Trash and back. Pages that show your name are collected on Your Gallery. You can also link your Ravelry account and post a project to Ravelry, photos and yarns included. Star other people's projects and palettes to find them again under Starred in My Library; only you see your stars.
My Library, Saved Palettes & Auto-Save The new My Library lists your saved projects and yarn palettes, as cards or a list, with filters. You can name your projects, and deleted projects and palettes go to a Trash for 30 days, so they can be put back. Once a project is saved, your changes save by themselves; Save is now in the top bar, and the Project menu has everything else. Find it at the top of the site menu
Yarn Palette Tools Save yarn palettes to use again later, copy a palette's link in one click, and save a palette as an image with a choice of layouts. Paste Colors reads lists of hex codes forgivingly, Get Colors From an Image has been rebuilt around markers on the photo, and palettes can be sorted from warm to cool. The Yarn Palette Creator has a Palette menu, like the Project menu, to export or share a palette, start a project with it, or open a recent one. Get Colors offers My Palettes, the Palette Gallery and Preset Gradients (formerly Schemes), and in the Project Planner, the Project menu exports and saves each gauge's palette.
Preferences Preferences have their own page, opened from the person icon in the top bar, with previews of each theme. You can choose a default yarn, which is picked first wherever no yarn is chosen yet, and turn off motion touches with Reduce Motion.
Ranges Ranges are written the same way everywhere (Project Planner, gallery, palette images, PDFs and Google Sheets): From → To, with which ends each range includes said once above them. Changed: if a day fits two overlapping ranges, it now takes the first range's color (the highest on the gauge), as the documentation says, instead of the last one's, so some previews with overlapping ranges may change. Day counts still include every day in each range. Fixed: with Low to High and Neither, a range included its To number.
New PDF Design The PDF has been redesigned to match the site: each gauge's colors as a list or a grid of cards, with numbered round swatches, yarn names that are never cut off, and an option to fill each color in. A new summary page shows the project and its preview, and each gauge's page starts with its palette at a glance. Choose US Letter or A4 paper, and the PDF remembers your choices. Accented letters in yarn and place names now print correctly.
Easier on Phones On phones, dialogs now open as sheets from the bottom of the screen. Drag one down to close it. The header fits better on small screens, too.
Project Gallery A project's name, if you've given it one, now shows in the Project Gallery above its locations and dates. The gallery now opens sorted by Popular, the most viewed in the past month (or day, week or year), and Popular works together with search and the yarn and pattern filters. Visits to project pages now count toward Popular, and each card shows how many times it's been viewed.
Privacy The Privacy Policy has been rewritten to be clearer. Fonts are now served from this site, and videos only load from YouTube when you choose to play one.
Version 6 · July 2026
More accurate sunrise and sunset times, so Daytime weather and Daytime Rows stitch counts are more accurate too.
Read the Release PostVersion 6.0.0
Version 6 There is a breaking change in that the Daytime calculations are more accurate, which may result in different Daytime and Nighttime stitch counts for some projects. Learn more and read the update announcement.
Version 6.5.0
Added New Yarn: Lana Grossa - Cool Wool Big 91 colorways
Added New Yarn: Lana Grossa - Cool Wool 114 colorways
Added New Yarn: Lana Grossa - Summer Softness 25 colorways
Added New Yarn: DROPS - Belle 34 colorways
Version 6.4.0
Added New Yarn: Premier - Cotton Fair Worsted 30 colorways
Added New Yarn: Holst - Supersoft 104 colorways
Added New Yarn: Knitting for Olive - Heavy Merino 66 colorways
Added New Yarn: DROPS - Snow 82 colorways
Version 6.3.0
New Preview Layout: Hexagons Each hexagon represents one day. Choose the number of columns and how the rows fit together, add extra hexagons at the beginning or between months, add a border around each hexagon, and customize the hexagon design to use a different weather value for each round. Try it in the Preview tab of the Project Planner
Yarn Details for Accent & Border Colors When you pick a yarn colorway for a preview's accent or border color, the yarn brand and colorway are now saved with your project. They're listed on a new Additional Colors page in the PDF (you can leave it out when downloading) and on project pages in the Project Gallery.
Version 6.2.1
Globe Improvements The Globe now shows detailed NASA satellite imagery you can zoom much closer into. Project markers lie flat on the map, grow as you zoom in, and never overlap, so they're easier to tap. A searchable list shows the places in view, and on phones it's a panel you can swipe up from the bottom of the screen.
Project Gallery Updates Project pages in the Project Gallery have a new "See nearby projects" button that opens the project's location on the Globe. Project details now open from an "About" button.
Version 6.2.0
Added New Yarn: Dharma - Acid Dyes 84 colorways
Added New Yarn: Dharma - Fiber Reactive Procion Dyes 168 colorways
Version 6.1.0
Added New Yarn: Ferner Wolle - Merino 160 43 colorways
Added New Yarn: Handy Hands - Lizbeth Size 40 115 colorways
Added New Yarn: Knit Picks - Comfy Fingering 22 colorways
Added New Yarn: Premier - Basix Chenille Brights 45 colorways
Added New Yarn: Wendy - Supreme DK 90 colorways
Version 6.0.14
Bug fixes & performance improvements Fixed an issue where sorting colors wasn't saving, and improved performance by only loading yarn colorway data when necessary.
Version 5 · March 2025
A refreshed design and new and improved features, with the code almost completely rewritten behind the scenes.
Read the Release PostVersion 5.0.0
Version 5 Release Updated design, new features, and rewritten with Svelte 5 and Skeleton 3 Learn more and read the update announcement.
Version 5.55.0
New Preview Layout: 12-Point Star Each of the 12 points represents a month, and each chevron row within a point represents one of your project's days, radiating outward from the center. Try it in the Preview tab of the Project Planner
Version 5.54.0
Added Colorways: Bernat - Blanket 10 colorways
Added New Yarn: Herrschners - Worsted 8 Heathers 16 colorways
Added New Yarn: Herrschners - Worsted 8 Wildflowers 8 colorways
Version 5.53.0
Added New Yarn: Círculo - Anne 78 colorways
Version 5.52.0
Added New Yarn: Loops & Threads - Sweet Snuggles Lite 19 colorways
Version 5.51.0
Added New Yarn: Loops & Threads - Luxe Merino 14 colorways
Added New Yarn: Loops & Threads - Superwash Merino 20 colorways
Added New Yarn: Scheepjes - Metropolis 80 colorways
Added Colorways: Cascade Yarns - 220 Superwash Merino 10 colorways
Version 5.50.0
Added Colorways: Premier - Basix Worsted 16 colorways
Version 5.49.0
Added New Yarn: Alize - Softy Plus 35 colorways
Added New Yarn: Knit Picks - Animation 30 colorways
Version 5.48.0
Added New Yarn: Stylecraft - Highland Heathers DK 24 colorways
Added New Yarn: Stylecraft - Life DK 39 colorways
Version 5.47.0
Added New Yarn: Rosários 4 - Be Cool 41 colorways
Added Colorways: Stylecraft - Naturals Bamboo + Cotton 5 colorways added
Added Colorways: Stylecraft - Special DK 5 colorways added
Updated colorway names for Stylecraft yarns Colorway names now include the Stylecraft shade value. For example, "White" is now "White 1001"
Yarn Colorways API v3 Introduced v3 of the Yarn Colorways API, adding name and exactName parameters for filtering colorways by name with partial or exact matching. Read the API Docs
Version 5.46.0
Added Colorways: Lion Brand - 24/7 Cotton 17 colorways added
Version 5.45.0
Added New Yarn: Emu - Classic DK 54 colorways
Version 5.44.0
Added New Yarn: Melissa - Lana Mediana 44 colorways
Version 5.43.0
Added New Yarn: Loops & Threads - Demi Purl 30 colorways
Version 5.42.0
New Feature - Project Globe Explore a 3D map of user-created temperature blanket projects from around the world on the new Globe page.
Version 5.41.0
New Feature - Create Google Sheet Save your weather data, ranges, and colors in a Google Sheet. In the Project Menu or in the Weather tab, select the Download/Export button, then Create Google Sheet.
Version 5.39.4
Future Date Issue For some projects with future dates, one day was incorrect or missing. This update fixes the issue. For more information, and to see if your project was affected or not, see this post: Technical Update: Future Date Issue.
Version 5.39.0
Added New Yarn: Hobbii - Daily Stitch Mega 21 colorways
Version 5.35.0
New Feature: Seasons Beta Assign different weather parameters for different seasons when previewing your project's colors. In the Preview tab, select Seasons in the settings to try it out. Note that not all preview pattern types support seasons, but more may be added later. This is a beta feature, and may have unexpected issues. Learn more in the documentation.
Version 5.31.0
Added New Yarn: Euroroma - Ecoamigurumi 31 colorways
Added New Yarn: Hobby Store - Aran AcryCot 50 colorways
Version 5.30.1
New Video: Plan a Temperature Blanket the Easy Way Click here to watch
Version 5.27.0
Modified Colorway: Sage Green (Scheepjes - Catona) There was an error with the Sage Green colorway from Scheepjes - Catona (it was the same color as the Kiwi colorway). This update fixes the Sage Green colorway so that it is no longer the same color as the Kiwi colorway. If you previously tried to save the Sage Green colorway in your project or yarn palette, it instead saved it as the Kiwi colorway in most cases. So you may need to update your saved project or yarn palette by selecting the new Sage Green colorway instead of the Kiwi colorway.
Version 5.22.0
Added New Preview Layout: Hexagon Rounds Each round in a hexagon represents one day Try it in the Preview tab of the Project Planner
Version 5.21.0
New Feature: Save Yarn Palette as Image Export your yarn palette as a PNG image to share on social media, or save it for future reference. When editing a palette in the Project Planner or with the Yarn Palette Creator, select the Export/Import tool, then choose Image.
Version 5.6.0
New Weather Source Settings Beta Choose a more consistent weather data model when using Open-Meteo as a weather data source. See more details in the documentation. This is a beta feature—it should prevent historical data from being altered, but it has not been thoroughly tested. An option has also been added to not fill missing data when using Meteostat as a weather source. To see the new settings, press the Weather Source button in the Project Planner. If you notice any issues or have feedback about the new model settings, please contact me.
Version 5.5.0
Added New Preview Layout: Square Rounds Each round in a square represents one day Try it out in the Preview tab of the Project Planner
Version 5.3.0
Added Feature: Moon Phase Gauge Add colors for phases of the moon into your preview designs.
Version 5.2.35
Fixed Weather Data Dates Issue #2 The fix introduced in v5.2.33 didn't completely solve the issue of dates shifting; some locations were still experiencing the issue. This update addresses the issue by using Universal Time Coordinated (UTC) throughout the application when converting dates, with added fixes to keep the v5.2.33 functionality in the cases where that update solved the problem. If you notice any issues regarding weather data, please let me know.
Version 5.2.33
Fixed Weather Data Dates Issue An issue for some locations (I believe it was introduced in v5.2.2) caused weather data dates to be off by one in the weather table and/or the preview image. I believe the issue was caused by how dates were converted throughout the application between ISO 8601 strings ('YYYY-MM-DD') and Date objects in Universal Time Coordinated (UTC). This update addresses the issue by converting ISO 8601 dates to Date objects using the local timezone instead of UTC. If you notice any issues regarding weather data, please let me know.
Version 5.2.2
Fixed Meteostat Weather Data Issue An issue was introduced in v5.0.0 where weather data from Meteostat was slightly different than previous versions. This happened because the location's elevation was not being included in the weather data request. This update fixes the issue by including the location's elevation in the weather request, so weather data from Meteostat should be the same as before the v5.0.0 update.
Version 5.2.0
Added Feature: Border Around Squares Option to add borders around each square for the Squares and Calendar preview layouts
Version 4 · September 2024
The source code for temperature-blanket.com is on GitHub, for anyone to see or help with.
Read the Release PostVersion 4.0.0
Open Source! Collaborate and contribute to this web app in the GitHub repository Read the release post
Version 4.19.1
Fixed Daytime Rows Preview Image The Daytime Rows preview image was inaccurately representing the number of daytime and night stitches in each row. This update uses the actual daytime and night stitches values to generate the preview image, ensuring that it accurately reflects the values in the stitches table. Consequently, the apparent line between the daytime and night sections in the preview image may appear more jagged (less of a smooth curve). However, it provides a more precise representation of the final project's appearance. Only the Daytime Rows preview image in the Project Planner is affected by this update; preview images on Project Gallery pages created before this update remain unchanged.
Version 4.2.0
Added Yarn Weights Yarns include weight information. When selecting or searching for a yarn colorway, you can filter results by yarn weight. See the Yarn Weights chart
Version 4.0.5
Allow Future Dates in Open-Meteo Weather Data Project locations can now include future dates even when the weather source is Open-Meteo. Previously this was possible only when the weather source was Meteostat.
Version 3 · December 2023
The whole site working as one: a new project gallery and gallery pages, a sidebar menu, easier moving between pages, and better sharing.
Read the Release PostVersion 3.0.0
Updated Site Design New sidebar navigation, unified design across all pages, and improved performance. Read the release post about Version 3
Version 3.35.0
More Locations Per Project Use more than 100 locations per project (increased from 50).
One-day Locations Get just one day of weather data per location (changed from a minimum of two days per location). This opens up new project options, for example using a location's weather data if you traveled there only one day.
Version 3.24.0
Repaired Weather Data Request When getting weather data from Meteostat, some requests would include an invalid elevation parameter. The issue has been fixed by removing the invalid elevation parameter from the request.
Version 3.23.1
Added Note for Recent Weather Data New alert visuals and revised text clarify that recent weather data can change as weather sources get the latest information. For projects with missing or recent weather data, see the Weather section for more information. You can also read the explanation in the FAQs.
Version 3.21.0
Added Feature: Lock Colorways When generating random colorways, lock the ones you like and generate new ones for the rest. In the palette creator, in the Random colorways tool, tap or hover over a colorway to view the lock button.
Version 3.18.2
Default High Temperatures New projects now use the daily high instead of the daily average temperature by default. You can change this by customizing ranges in the Colors section and by changing layout options in the Preview sections.
Version 3.18.0
New - Yarn Colorways API Developers can use the API to find yarn by color in their apps. Yarn Colorways API
Version 3.10.0
Interactive Color Palettes View or edit colors directly from the palette preview. Tap or hover over a color palette to see or edit details.
Yarn Palette Gallery Browse user-created yarn colorway combinations. View the Yarn Palette Gallery.
Version 3.0.1
Fixed Issue with Daytime Data not Displaying
Version 2.6.8
Added Offline Features Use the Yarn Palette Creator and Yarn Colorway Finder even without internet connection. Install or add the page to your homescreen as a Progressive Web App.
Version 2.4.5
Range Configuration One place for setting up and editing all color ranges. Instantly see how changing one range affects the others near it, without having to open a new modal for each color. Go to the Colors tab and press the Configure Ranges button, or select the range from the color list.
New Smart Ranges Automatically generate ranges containing similar number of days. On by default for new projects. Only applies to Temperature Gauges. Adjust the settings in the Colors tab by pressing the Configure Ranges button, under Generate Ranges select Automatic, then select from the Balance Focus modes.
Version 2.4.0
New Themes! Use the Theme Switcher at the top of the page or in the menu to change the look and feel of the page.
Yarn Colorway Finder Search for yarn colorways by HTML color name or hex code. Open the Yarn Colorway Finder
Improved Website Accessibility
Version 2.3.1
New Weather Forecast Page Hourly and daily temperature and precipitation data from Open-Meteo. See the Weather Forecast page
Version 2.0.1
Error Correction Fixed issue with the Weather Source setting unexpectedly changing when using Undo or Redo.
Version 2.0.0
Updated Versioning System Previous version numbers didn't always follow the SemVer format, causing problems with some features.
Version 1.905
Weather Sources Changed the default weather source from Meteostat to Open-Meteo.
Version 1.871
Image Palette Get yarn colors from an image. In the Colors tab or on the Yarn Palette Creator page, press the Image Palette button to get colors from an image.
Version 1.858
Save Projects to Your Browser When you save a project, it will automatically be saved to your browser so you can find it later.
Edit Weather Data Select a value from the weather data table to edit it.
Import Weather Data In the Weather tab, press the Import Weather Data button to upload a CSV file.
Version 1.818
Weekly Weather Data Grouping weather by weeks makes for a shorter project. In the Weather tab, select Weekly.
Version 1.808
Range Calculation Methods Change how gauge ranges are calculated In the Colors tab, press the Configure Ranges button, then press Advanced Controls.
Version 1.808
Improved Website Performance Switched to using Svelte instead of vanilla Javascript.
Version 1.680
Project Gallery Created the project gallery to showcase user-created projects. In the Preview tab, press the Share to Gallery button to add your project to the gallery.
Version 1.3.2
Fixed Unit Conversion Issues
Version 1.0.0
First Stable Version After a year of adding features, bug-fixing, and fixing issues, version one is stable and ready for use.
Version 0.98
Save Project in URL In order to improve the accuracy and functionality of the site both now and in the future, this update unfortunately includes breaking changes to previously saved projects. I apologize for any inconvenience, and will try to limit the amount of these kinds of changes in the future. If you open a project created before January 22nd, 2022, you’ll need to update your project by entering missing information and re-saving it.
Public Beta Access Temperature-blanket.com is open to the public.