When to Plant Pumpkins in Fontana, CA

One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By reviewing the USDA zone info for Fontana it's a good idea to estimate when you can plant pumpkins.


Planting Calendar for Pumpkins

Frost tolerance for pumpkins: Not tolerant of frost.
When to plant: After all chance of frost has passed.

Since pumpkins require warm weather you need to wait until after all chance of frost has passed before you can plant them.

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

The earliest that you can plant pumpkins in Fontana is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant pumpkins and expect a good harvest is probably September. If you wait any later than that and your pumpkins may not have a chance to fully mature. If you are starting your pumpkins indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is January 31 in Fontana. In the coldest months of winter you should expect an average low temperature of 30°F.

Since the USDA zone info for Fontana is not always accurate the actual date of last frost can change quite a bit from year to year. Half of the time in Fontana you get a frost after January 31 so always be ready to cover your pumpkins if you have a late frost.

USDA Zone Info for Fontana

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)January 31
Average Date of First Frost (fall)December 15
Lowest Expected Low30°F
Highest Expected Low35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Fontana

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