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🍂 First Frost Dates for Little Cedar, Iowa 50454

The first 36°F frost date is 30% likely to be on Sep 22. (See detailed probabilities below.)

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

(See also 🌷 Last Spring Frost Dates.)

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

Agricultural climatic data from weather station: OSAGE (USC00136305)

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