When to Plant Cucumbers in Montclair, CA

Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Montclair you can determine when it's possible to plant cucumbers by referring to the USDA zone info.


Planting Calendar for Cucumbers

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

Cucumbers do not do well in cold weather which tells us that you really should 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 Montclair 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 cucumbers and expect a good harvest is probably September. Any later than that and your cucumbers may not have a chance to really do well. You can get started a couple of weeks earlier by starting your cucumbers indoors.

Last Frost Date

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

Since the USDA zone info for Montclair is not always accurate the actual date of last frost will vary from year to year. Since half of the time in Montclair it frosts late in the year after January 31 be ready to protect your cucumbers if you have one of those late frosts.

USDA Zone Info for Montclair

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 Montclair

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