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🍂 First Frost Dates for Prewitt, New Mexico 87045

The first 36°F frost date is 30% likely to be on Sep 10. (See detailed probabilities below.)

The first 32°F light freeze date is 30% likely to be on Sep 18. (See detailed probabilities below.)

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Prewitt, NM are based on historical climate data.

Always check your local forecast for the most up-to-date frost warnings.

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What is a First Frost Date?

The first fall frost signals the end of your local growing season. This date serves as an important deadline for gardeners and farmers. You'll need to complete harvesting before this point. Annuals and other tender plants will die back when frost hits, and perennial plants will enter their dormant phase for winter. Meanwhile, it's time to enjoy a cup of hot cocoa and a cozy sweater—and start planning your spring garden!

How to use the First Frost Date?

Watch your local weather forecasts in early fall to predict the first frost date. Harvest tender crops and protect vulnerable plants before frost arrives. For late-summer plantings, count backward from your area's average first frost date. This ensures your crops have enough time to mature. Keep track of when frost actually occurs in your garden each year. This helps you identify protected spots where the growing season might last longer.

First Frost Date Probabilities

Probability of frost (36°F) on or before...
10% chanceSep 3
20% chanceSep 7
30% chanceSep 10
40% chanceSep 12
50% chanceSep 14
60% chanceSep 16
70% chanceSep 18
80% chanceSep 21
90% chanceSep 24
Probability of light freeze (32°F) on or before...
10% chanceSep 11
20% chanceSep 15
30% chanceSep 18
40% chanceSep 20
50% chanceSep 22
60% chanceSep 25
70% chanceSep 27
80% chanceSep 29
90% chanceOct 2
Probability of moderate freeze (28°F) on or before...
10% chanceSep 17
20% chanceSep 23
30% chanceSep 26
40% chanceSep 29
50% chanceOct 1
60% chanceOct 3
70% chanceOct 5
80% chanceOct 8
90% chanceOct 12
Probability of moderate hard freeze (24°F) on or before...
10% chanceSep 27
20% chanceOct 1
30% chanceOct 4
40% chanceOct 7
50% chanceOct 9
60% chanceOct 12
70% chanceOct 14
80% chanceOct 17
90% chanceOct 21
Probability of hard freeze (20°F) on or before...
10% chanceOct 6
20% chanceOct 11
30% chanceOct 14
40% chanceOct 17
50% chanceOct 19
60% chanceOct 22
70% chanceOct 24
80% chanceOct 28
90% chanceNov 1
Probability of severe hard freeze (16°F) on or before...
10% chanceOct 15
20% chanceOct 20
30% chanceOct 24
40% chanceOct 27
50% chanceOct 30
60% chanceNov 1
70% chanceNov 4
80% chanceNov 8
90% chanceNov 13

Agricultural climatic data from weather station: THOREAU 12 SE (USC00298834)

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