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🍂 First Frost Dates for Cromwell, Oklahoma 74837

The first 36°F frost date is 30% likely to be on Oct 29. (See detailed probabilities below.)

The first 32°F light freeze date is 30% likely to be on Nov 7. (See detailed probabilities below.)

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Cromwell, OK 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% chanceOct 20
20% chanceOct 25
30% chanceOct 29
40% chanceNov 1
50% chanceNov 4
60% chanceNov 7
70% chanceNov 10
80% chanceNov 14
90% chanceNov 18
Probability of light freeze (32°F) on or before...
10% chanceOct 30
20% chanceNov 3
30% chanceNov 7
40% chanceNov 11
50% chanceNov 14
60% chanceNov 17
70% chanceNov 21
80% chanceNov 24
90% chanceDec 1
Probability of moderate freeze (28°F) on or before...
10% chanceNov 6
20% chanceNov 13
30% chanceNov 18
40% chanceNov 22
50% chanceNov 25
60% chanceNov 29
70% chanceDec 2
80% chanceDec 6
90% chanceDec 13
Probability of moderate hard freeze (24°F) on or before...
10% chanceNov 16
20% chanceNov 24
30% chanceNov 29
40% chanceDec 2
50% chanceDec 5
60% chanceDec 9
70% chanceDec 13
80% chanceDec 20
90% chanceDec 26
Probability of hard freeze (20°F) on or before...
10% chanceNov 28
20% chanceDec 3
30% chanceDec 8
40% chanceDec 12
50% chanceDec 17
60% chanceDec 22
70% chanceDec 27
80% chanceJan 1
90% chanceJan 10
Probability of severe hard freeze (16°F) on or before...
10% chanceDec 5
20% chanceDec 11
30% chanceDec 16
40% chanceDec 22
50% chanceDec 27
60% chanceJan 1
70% chanceJan 6
80% chanceJan 13
90% chanceJan 27

Agricultural climatic data from weather station: OKEMAH (USC00346638)

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