When to Plant Squash in Whitefish, MT

One of the best tools that you have as gardeners to help us figure out your gardening schedule is the 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.

You can figure out when it's a good idea to plant squash in Whitefish by reviewing the USDA zone info.


Planting Calendar for Squash

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

Since squash require warm weather you really should wait until after the last frost when the weather gets warmer before you can plant them.

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 Whitefish 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. You probably don't want to wait any later than that or else your squash may not have a chance to grow to maturity. Starting your squash indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Whitefish. In the coldest months of winter you can expect an average low temperature of -20°F.

Since the USDA zone info for Whitefish is just an average the actual date of last frost is different every year. Since half of the time in Whitefish it frosts late in the year after April 15 be ready to protect your squash if you have a surprise late frost.

USDA Zone Info for Whitefish

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-20°F
Highest Expected Low-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Whitefish

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