When to Plant Watermelon in Cedarburg, WI

One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can estimate when it's a good idea to plant watermelon in Cedarburg by checking out the USDA zone info.


Planting Calendar for Watermelon

Frost tolerance for watermelon: Not tolerant of frost.
When to plant: After the last frost.

It's not a good idea to plant watermelon until after the last frost because they are not cold tolerant.

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

The earliest that you can plant watermelon in Cedarburg 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 watermelon and expect a good harvest is probably August. If you wait any later than that and your watermelon may not have a chance to grow to maturity. Starting your watermelon indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Cedarburg. You should expect an average low temperature of -15°F in the coldest months of winter.

It's important to remember that USDA zone info for Cedarburg is not always accurate and the actual date of last frost changes from year to year. Since half of the time in Cedarburg there is a last frost after April 15 be ready to cover your watermelon if you have one of those late frosts.

USDA Zone Info for Cedarburg

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 Cedarburg

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