Frost Dates for Greenville, CA

Based on data from Canyon Dam weather station, 8 miles away

Elevation: 3586 ft

Frost Dates

Last Spring Frost (50%) A 50% chance that the last spring frost has already passed by this date. Most gardeners use this as their primary planting guide. May 18
First Fall Frost (50%) A 50% chance that the first fall frost has occurred by this date. Plan to harvest or protect tender plants before this date. October 8

30% Probability

Only a 30% chance of frost remaining by this date. Use these dates for a safer planting window, especially for tender plants sensitive to cold.
Last Spring Frost May 29
First Fall Frost October 3

Hard Freeze (28°F)

Last Spring Hard Freeze April 26
First Fall Hard Freeze October 26
40.14°N, 120.95°W © OpenStreetMap

Growing Season

143 Days May 18 to October 8

USDA Hardiness Zone

Hardiness zones indicate which perennial plants can survive winter in your area. For annual vegetables, frost dates and growing season length matter more than hardiness zone.
Zone 7b

Avg. annual minimum: 5 to 10°F

Learn more

Köppen Climate

The Köppen climate classification system categorizes climates based on temperature and precipitation patterns.
Csb Warm-Summer Mediterranean

Warm, dry summers and mild, wet winters. Similar to hot-summer Mediterranean but cooler. Great for a wide range of vegetables and fruit trees with moderate water needs.

Köppen climate map

Temperature

Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)
Temperature table
Average monthly temperatures (°F)
Month Avg High Avg Temp Avg Low
January42°34°25°
February45°36°26°
March51°40°29°
April58°45°32°
May68°54°39°
June78°61°45°
July86°68°50°
August85°67°49°
September79°61°44°
October66°51°36°
November50°40°30°
December41°33°25°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January10.5
February10.0
March9.4
April5.7
May4.1
June2.2
July0.0
August0.0
September1.2
October5.6
November7.1
December9.7

Sunrise / Sunset

Daylight Pacific Time (PT) Longest: 14h 52m · Shortest: 9h 08m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (Pacific Time (PT))
Month Sunrise Sunset Daylight
January7:30 AM4:57 PM9h 27m
February7:05 AM5:33 PM10h 28m
March7:24 AM7:04 PM11h 41m
April6:32 AM7:37 PM13h 04m
May5:54 AM8:07 PM14h 14m
June5:39 AM8:30 PM14h 51m
July5:52 AM8:28 PM14h 36m
August6:21 AM7:56 PM13h 36m
September6:51 AM7:06 PM12h 15m
October7:22 AM6:17 PM10h 54m
November6:58 AM4:41 PM9h 44m
December7:26 AM4:35 PM9h 09m

Nearby Stations

Chester, CAMay 28 - September 28 Quincy, CAMay 22 - September 25 Susanville 2sw, CA May 16 - October 8 Mineral, CAJune 10 - September 13 De Sabla, CA April 17 - November 11 Manzanita Lake, CA June 9 - September 21

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