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🍂 First Frost Dates for Nevada City, California 95959

The first 36°F frost date is 30% likely to be on Oct 26. (See detailed probabilities below.)

The first 32°F light freeze date is 30% likely to be on Nov 11. (See detailed probabilities below.)

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Nevada City, CA 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 14
20% chanceOct 21
30% chanceOct 26
40% chanceOct 31
50% chanceNov 3
60% chanceNov 7
70% chanceNov 10
80% chanceNov 14
90% chanceNov 20
Probability of light freeze (32°F) on or before...
10% chanceOct 30
20% chanceNov 6
30% chanceNov 11
40% chanceNov 15
50% chanceNov 19
60% chanceNov 23
70% chanceNov 27
80% chanceDec 2
90% chanceDec 8
Probability of moderate freeze (28°F) on or before...
10% chanceNov 17
20% chanceNov 24
30% chanceNov 29
40% chanceDec 3
50% chanceDec 8
60% chanceDec 12
70% chanceDec 18
80% chanceDec 26
90% chanceJan 8
Probability of moderate hard freeze (24°F) on or before...
10% chanceDec 3
20% chanceDec 11
30% chanceDec 18
40% chanceDec 25
50% chanceDec 30
60% chanceJan 4
70% chanceJan 15
80% chanceJan 29
90% chanceFeb 13
Probability of hard freeze (20°F) on or before...
10% chanceDec 10
20% chanceDec 15
30% chanceDec 22
40% chanceDec 27
50% chanceDec 31
60% chanceJan 4
70% chanceJan 19
80% chanceFeb 1
90% chanceFeb 11
Probability of severe hard freeze (16°F) on or before...
10% chancerarely
20% chancerarely
30% chancerarely
40% chancerarely
50% chancerarely
60% chancerarely
70% chancerarely
80% chancerarely
90% chancerarely

Agricultural climatic data from weather station: NEVADA CITY (USC00046136)

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