The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

It's possible to determine when it's possible to plant cantaloupes by checking out the USDA zone info for San Francisco.

Planting Calendar for Cantaloupes

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

Since cantaloupes do not do well in cold weather you must wait until after the last frost before you can plant them.

The earliest that you can plant cantaloupes in San Francisco 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 cantaloupes and expect a good harvest is probably September. You probably don't want to wait any later than that or else your cantaloupes may not have a chance to really do well. Starting your cantaloupes indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is January 31 in San Francisco. In the coldest months of winter you should expect an average low temperature of 35°F.

It's important to remember that the actual date of last frost is just an average because it is based on the USDA zone info for San Francisco and it changes from year to year. Half of the time in San Francisco there is a last frost after January 31 so make sure that you are ready to protect your cantaloupes if you have a surprise late frost.

USDA Zone Info for San Francisco

Here is the info for USDA Zone 10b.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	35°F
Highest Expected Low	40°F

This means that on a really cold year, the coldest it will get is 35°F. On most years you should be prepared to experience lows near 40°F.

Plants to Grow in San Francisco

You may be interested in your other planting guides for San Francisco.