When to Plant Tomatos in Racine, WI

One of the first steps you take when you are making a decision about your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

It's possible to estimate when it's possible to plant tomatos by checking out the USDA zone info for Racine.


Planting Calendar for Tomatos

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

It's not a good idea to plant tomatos until after the last frost when the weather gets warmer because they do not do well in cold weather.

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

The earliest that you can plant tomatos in Racine 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 tomatos and expect a good harvest is probably August. If you wait any later than that and your tomatos may not have a chance to fully mature. If you are starting your tomatos indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

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

It's important to remember that USDA zone info for Racine is just an average and the actual date of last frost changes from year to year. Since half of the time in Racine last frost occurs after April 15 be ready to cover your tomatos if you have a surprise late frost.

USDA Zone Info for Racine

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 Racine

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