One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You will be able to figure out when to plant melons by reviewing the USDA zone info for Marengo.

Planting Calendar for Melons

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

Melons do not do well in cold weather which means that it is necessary to wait until it warms up after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant melons in Marengo 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 melons and expect a good harvest is probably August. If you wait any later than that and your melons may not have a chance to really do well. You can get started a couple of weeks earlier by starting your melons indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Marengo. In the coldest months of winter you can expect an average low temperature of -15°F.

Since the USDA zone info for Marengo may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Marengo last frost occurs after April 15 so always be ready to cover your melons if you have a late frost.

USDA Zone Info for Marengo

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

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

Plants to Grow in Marengo

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