Before planting it is a good idea to find your USDA Zone info to figure out 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.

In Chehalis you can figure out when it's a good idea to plant cucumbers by looking at 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.

Since cucumbers require warm weather you have to wait until after the last frost has passed before you can plant them.

The earliest that you can plant cucumbers in Chehalis is April. However, you really should wait until May 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. You probably don't want to wait any later than that or else your cucumbers may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your cucumbers indoors.

Last Frost Date

In Chehalis the average date of last frost happens on March 15. You can expect an average low temperature of 10°F in the coldest months of winter.

It's important to remember that USDA zone info for Chehalis may not be accurate from year to year and the actual date of last frost will vary from year to year. Half of the time in Chehalis last frost occurs after March 15 so make sure that you are prepared to cover your cucumbers in the event of one of those late frosts.

USDA Zone Info for Chehalis

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°F

This means that on a really cold year, the coldest it will get is 10°F. On most years you should be prepared to experience lows near 15°F.

Plants to Grow in Chehalis

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