🌷 Your Ultimate Garden Calendar!

🍂 First Frost Dates for Boulder City, Nevada 89005

The first 36°F frost date is 30% likely to be on Nov 28. (See detailed probabilities below.)

The first 32°F light freeze date is 30% likely to be on Dec 10. (See detailed probabilities below.)

(See also 🌷 Last Spring Frost Dates.)

First frost date probabilities for Boulder City, NV are based on historical climate data.

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

Book Recommendations (ads!)

📚 Growing Under Cover: Techniques for a More Productive, Weather-Resistant, Pest-Free Vegetable Garden

📚 Greenhouse Gardening for Beginners: Step By Step Guide To Build A Year-Round Greenhouse And Grow Herbs, Organic Fruits And Vegetables, Plants, Flowers Plans & Ideas for Extending the Growing Season

📚 How to Garden Indoors & Grow Your Own Food Year Round: Ultimate Guide to Vertical, Container, and Hydroponic Gardening (Creative Homeowner) Vegetables, Herbs, DIY Projects, Composting, Lights, & More

📚 The Year-Round Vegetable Gardener: How to Grow Your Own Food 365 Days a Year, No Matter Where You Live

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% chanceNov 17
20% chanceNov 24
30% chanceNov 28
40% chanceDec 1
50% chanceDec 5
60% chanceDec 8
70% chanceDec 11
80% chanceDec 15
90% chanceDec 19
Probability of light freeze (32°F) on or before...
10% chanceNov 29
20% chanceDec 5
30% chanceDec 10
40% chanceDec 14
50% chanceDec 18
60% chanceDec 22
70% chanceDec 27
80% chanceJan 1
90% chanceJan 14
Probability of moderate freeze (28°F) on or before...
10% chanceDec 9
20% chanceDec 15
30% chanceDec 21
40% chanceDec 26
50% chanceDec 31
60% chanceJan 5
70% chanceJan 14
80% chanceJan 25
90% chanceFeb 5
Probability of moderate hard freeze (24°F) on or before...
10% chanceDec 13
20% chanceDec 20
30% chanceDec 26
40% chanceDec 29
50% chanceJan 3
60% chanceJan 16
70% chanceFeb 1
80% chanceFeb 5
90% chanceFeb 12
Probability of hard freeze (20°F) on or before...
10% chancerarely
20% chancerarely
30% chancerarely
40% chancerarely
50% chancerarely
60% chancerarely
70% chancerarely
80% chancerarely
90% chancerarely
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: BOULDER CITY (USC00261071)

Back to Weather Calendar