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Crochet Temperature Afghan

I keep my house on the cool side and we can never have enough blankets! I saw an idea on Facebook to crochet a blanket one line per day using different colors for different temperatures. In the end you have a pretty Temperature Afghan that represents the whole year.

stacked Vanna's Choice yarn Cranberry Brick Rust Mustard Dusty Green Olive Dusty Blue Colonial Blue Purple

It seemed fun and I’m always up for something that involves buying new yarn! Aside from the original inspiration that’s where the similarities end. The more I thought about it the less realistic it seemed to me. 

I wasn’t crazy about the strip idea. Figuring out how wide to make the blanket and how long it would be was more than my coffee-deprived brain could figure and I tend to be slightly obsessive about proportions. I was also afraid I’d end up with a too-narrow 30 foot long blanket….

Make it Square

Granny Square Afghan center Vanna's Choice Dusty Blue on white background

Easiest solution? A granny square, working from the center out, treating each side of the square as a different day will yield a square blanket.

I actually split mine into 4 granny squares, I’ve only completed 1.75 of the 4 so far. Because I have the focus of a goldfish. Smaller squares work up much quicker and in the end you’ll use less yarn so it’s cheaper too.

Granny squares are awesome because the ‘complicated’ part, if you can call it that, is all in the set up. After that you just follow along with what you did before and you don’t even need to count that much!

I’m doing a super simple granny square, I think the random color changes will keep it fancy enough and I need to be able to switch colors easily in the corners.

It’s all worked in my favorite stitch, the double crochet. It’s the same stitch I use for my simple double crochet scarf and my around the post crochet scarf.

I treated the center motif as ‘Day 1’ and from there I’ve been treating each side as it’s own day. We’ve had pretty steady temperatures so far and I’m still on the same color but the forecast looks a little different for the next week so maybe I’ll get to put my dusty blue aside and pick up a new color.

If you aren’t familiar with the basic granny square or you just need to brush up on your skills check out this tutorial from Hop Skip Jump.

The only thing that’s a little confusing is the corners if you need to change colors. Traditional granny squares work a whole corner first (3 dc, 3 chain, 3 dc) but since I might have to switch up my colors at a corner you need to cut the yarn at the end of each row instead of carrying it up.

When you start a new row you’ll do half the corner, (3dc) continue to the next corner and do half. If you’re sticking with the same color finish the corner and do the next row and half a corner. If you have to change the color it’s not a big deal because you will hide your color change with the next row of colors.

Picking Yarn for a Temperature Afghan

Beginner Friendly Daily Granny Square Temperature Afghan

The original Facebook image was all bright rainbow colors. That’s not me at all, I need jewel tones and dusty colors.

I went with 9 muted tones from the Vanna’s Choice by Lion Brand line. Mostly because it was on sale, but also because I was able to find 9 cohesive colors.

The hardest part of picking your yarn is going to be finding a line with a large enough variation in colors. If you aren’t feeling the Vanna’s Choice Redheart Super Saver comes in about 6 million shades.

My original plan was to go with  a more subtle cream/brown/green color scheme but I couldn’t get enough colors. If you pay attention carefully you might notice that I only have 8 colors, my local store was out of Cranberry so I couldn’t pick one up.

I think I’m going to be ok though, it probably won’t reach 86 any time this week although with this crazy non-winter we’ve been having you can never tell.

Don’t worry about buying all of your yarn at once, at least not unless it’s a crazy good sale. There’s no way to know what colors you’ll need the most of and with the variations in colors a slight change in dye lot won’t ruin your blanket.

Joann’s and Michael’s bot h have huge yarn events constantly and even if they don’t you can always use coupons. A ball of yarn isn’t that much but when you need a bunch of them they add up fast.

I was going to have this posted on the first but I wanted to have some amount of blanket completed so here we are on the 3rd and you can see two whole days! I’ve been using Weather Underground to keep track of my temperatures, they have an easily accessible history feature that lets you go back to days you’ve missed.

Right now I have the colors I see in the immediate future stashed in a tote bag (purple, colonial blue, dusty blue and olive) with the rest in a bag in the closet hidden from tiny fingers and rambunctious felines.

I used large index cards to track the temperatures and the corresponding colors. I personally find it much easier to work a full round of 4 sides at once.


When I’m not carving out a few minutes for crocheting I’ll probably be playing sled dog for this little kid. Do you have any winter projects planned?

Check out my Yarn Page for more ideas or start here:

blue denim mannequin with a cream and teal scarf wrapped around its neck against a camel background with around the post crochet scarf text overlay

grey fur and red plaid flannel blanket sitting on a rocking chair with a crocheted pillow cover



Kim Holsapple

Tuesday 28th of May 2019

I was very ambitious with this idea three years ago. LOL I started when my daughter was in PT. Then I made the stupid mistake of making this for my king size bed. By June I couldn't lug it around anymore. So I stopped.

I am thinking abt ripping it all out and make a temperature scarf. Our library attempted one last year but with so many hands crocheting it didn't turn out at all.

I love your blog!

Reagan wilson

Wednesday 10th of January 2018

Do you have any pics you can share of how it turned out?


Monday 15th of February 2016

I saw you're using the Vanna Choice yarn, which is what I used to start. When I did the math, though, two rows of granny stitch equals 1 1/2 inches; multiplied out by days of the year, I found out that my afghan will be very large. I'm disappointed but I'm thinking of looking for a thinner yarn.


Wednesday 17th of February 2016

I'm considering splitting it into two blankets, I'll have to see where I end up by the end of June. I have a king sized bed so I'm not opposed to a giant blanket but I'm thinking I might be spending my kids college fund on yarn!


Wednesday 3rd of February 2016

Do you have an update on this? I'm curious as to how it's coming along


Thursday 4th of February 2016

I posted an update on instagram/facebook in the middle of January. As soon as I'm home before the sun goes down I'll try putting up another :-)


Monday 4th of January 2016

My favorite blankets are my mom's afgans she made us when we were little. I plan on working on a quilt for my husband and our yearly photo book.