When to Plant Squash in Winfield, IL

Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A common way of estimating when you can plant squash is to examine the USDA zone info for Winfield.


Planting Calendar for Squash

Frost tolerance for squash: Not tolerant of frost.
When to plant: After the last frost when the weather gets warmer.

You should not plant squash until after the last frost has passed because they are not cold tolerant.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant squash
Possibly ok, but a risky time to plant squash
Probably not a good time to plant squash

The earliest that you can plant squash in Winfield is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant squash and expect a good harvest is probably August. Any later than that and your squash may not have a chance to fully mature. You can get started a few weeks earlier by starting your squash indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Winfield. In the coldest months of winter you can expect an average low temperature of -15°F.

It's important to remember that USDA zone info for Winfield is an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Winfield you get a frost after April 15 so make sure that you are ready to protect your squash if you have one of those late frosts.

USDA Zone Info for Winfield

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-15°F
Highest Expected Low-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Winfield

You may be interested in your other planting guides for Winfield.