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🍂 First Frost Dates for Jamestown, New Mexico 87347

The first 36°F frost date is 30% likely to be on Sep 9. (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 Jamestown, 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 1
20% chanceSep 6
30% chanceSep 9
40% chanceSep 12
50% chanceSep 15
60% chanceSep 17
70% chanceSep 20
80% chanceSep 23
90% chanceSep 26
Probability of light freeze (32°F) on or before...
10% chanceSep 9
20% chanceSep 14
30% chanceSep 18
40% chanceSep 20
50% chanceSep 23
60% chanceSep 25
70% chanceSep 28
80% chanceOct 1
90% chanceOct 4
Probability of moderate freeze (28°F) on or before...
10% chanceSep 15
20% chanceSep 22
30% chanceSep 25
40% chanceSep 28
50% chanceOct 1
60% chanceOct 3
70% chanceOct 5
80% chanceOct 9
90% chanceOct 13
Probability of moderate hard freeze (24°F) on or before...
10% chanceSep 25
20% chanceSep 30
30% chanceOct 3
40% chanceOct 6
50% chanceOct 9
60% chanceOct 12
70% chanceOct 15
80% chanceOct 19
90% chanceOct 23
Probability of hard freeze (20°F) on or before...
10% chanceOct 4
20% chanceOct 9
30% chanceOct 13
40% chanceOct 17
50% chanceOct 20
60% chanceOct 22
70% chanceOct 25
80% chanceOct 29
90% chanceNov 3
Probability of severe hard freeze (16°F) on or before...
10% chanceOct 13
20% chanceOct 19
30% chanceOct 23
40% chanceOct 26
50% chanceOct 29
60% chanceNov 1
70% chanceNov 4
80% chanceNov 8
90% chanceNov 13

Agricultural climatic data from weather station: MCGAFFEY 5 SE (USC00295560)

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