Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Chino Hills should be used to figure out when it's possible to plant pumpkins.

Planting Calendar for Pumpkins

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

You should not plant pumpkins until after all chance of frost has passed because they require warm weather.

The earliest that you can plant pumpkins in Chino Hills 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 really do well. You can get started a couple of weeks earlier by starting your pumpkins indoors.

Last Frost Date

In Chino Hills the average date of last frost happens on January 31. In the coldest months of winter you should expect an average low temperature of 30°F.

Keep in mind that USDA zone info for Chino Hills is an average and the actual date of last frost is different every year. Half of the time in Chino Hills you get a frost after January 31 so always be ready to protect your pumpkins in the event of one of those late frosts.

USDA Zone Info for Chino Hills

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 Low	30°F
Highest Expected Low	35°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 Chino Hills

You may be interested in your other planting guides for Chino Hills.