The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You can estimate when it's the best time to plant carrots in Onalaska by using the USDA zone info.

Planting Calendar for Carrots

Frost tolerance for carrots:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

You can plant carrots a bit earlier in the year because they are one of those plants that can tolerate a little bit of cold weather.

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

The last month that you can plant carrots and expect a good harvest is probably August. If you wait any later than that and your carrots may not have a chance to fully mature. You can get started a few weeks earlier by starting your carrots indoors.

Last Frost Date

On average all chance of frost has passed is on May 15 in Onalaska. It might get as low as -25°F during the coldest months of winter.

Since the USDA zone info for Onalaska is just an average the actual date of last frost is different every year. Half of the time in Onalaska there is a last frost after May 15 so just be sure to be ready to cover your carrots if you have a late frost.

USDA Zone Info for Onalaska

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Onalaska

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