When to Plant Cucumbers in Riverton, WY

One of the first steps you take when you are determining 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.

You can figure out when it's a good idea to plant cucumbers in Riverton by using the USDA zone info.


Planting Calendar for Cucumbers

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

Cucumbers do not do well in cold weather which means that you have to wait until it warms up after the last frost before you can plant them.

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

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

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

Last Frost Date

The average date of last frost is May 15 in Riverton. It might get as low as -25°F during the coldest months of winter.

Remember that USDA zone info for Riverton is just an average and the actual date of last frost will vary from year to year. Half of the time in Riverton you get a frost after May 15 so make sure that you are ready to cover your cucumbers in the event of one of those late frosts.

USDA Zone Info for Riverton

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)May 15
Average Date of First Frost (fall)September 15
Lowest Expected Low-25°F
Highest Expected Low-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Riverton

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