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.

The USDA zone info for Rhinelander can be looked at to determine when to plant turnips.

Planting Calendar for Turnips

Frost tolerance for turnips:	Not tolerant of frost.
When to plant:	After the last frost has passed.

Turnips are not cold tolerant which means that it's important to wait until it warms up after the last frost has passed before you can plant them.

The earliest that you can plant turnips in Rhinelander is May. However, you really should wait until June if you don't want to take any chances.

The last month that you can plant turnips and expect a good harvest is probably August. Any later than that and your turnips may not have a chance to really do well. You can get started a little bit earlier by starting your turnips indoors.

Last Frost Date

On average all chance of frost has passed is on May 15 in Rhinelander. In the coldest months of winter you can expect an average low temperature of -30°F.

Since the USDA zone info for Rhinelander may not be accurate from year to year the actual date of last frost changes from year to year. Half of the time in Rhinelander last frost occurs after May 15 so be sure to be ready to protect your turnips in the event of one of those late frosts.

USDA Zone Info for Rhinelander

Here is the info for USDA Zone 4a.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-30°F
Highest Expected Low	-25°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 -25°F.

Plants to Grow in Rhinelander

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