Frost Dates for Whiskeytown Rsvr, CA

Elevation: 395 m

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. February 13
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. December 13

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 February 28
First Fall Frost December 3

Hard Freeze (28°F)

Last Spring Hard Freeze January 3
First Fall Hard Freeze December 25
40.61°N, 122.53°W © OpenStreetMap

Growing Season

304 Days February 13 to December 13

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 9b

Avg. annual minimum: 25 to 30°F

Learn more

Köppen Climate

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

Hot, dry summers and mild, wet winters. Classic Mediterranean climate ideal for grapes, olives, tomatoes, and herbs. Summer irrigation is usually necessary.

Köppen climate map

Temperature

Avg High Avg Temp Avg Low Light Frost (32°F)
Temperature table
Average monthly temperatures (°F)
Month Avg High Avg Temp Avg Low
January54°47°39°
February58°50°41°
March63°53°43°
April70°59°47°
May79°67°55°
June89°75°62°
July99°83°67°
August98°81°65°
September92°76°61°
October78°65°52°
November62°53°44°
December54°46°39°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January11.3
February13.1
March11.2
April6.6
May4.0
June2.8
July0.0
August0.0
September0.4
October6.9
November9.5
December10.2

Sunrise / Sunset

Daylight Pacific Time (PT) Longest: 14h 55m · Shortest: 9h 05m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (Pacific Time (PT))
Month Sunrise Sunset Daylight
January7:37 AM5:01 PM9h 24m
February7:11 AM5:38 PM10h 27m
March7:29 AM7:10 PM11h 41m
April6:38 AM7:43 PM13h 05m
May5:59 AM8:14 PM14h 16m
June5:44 AM8:37 PM14h 53m
July5:57 AM8:35 PM14h 38m
August6:26 AM8:03 PM13h 37m
September6:57 AM7:12 PM12h 15m
October7:29 AM6:22 PM10h 53m
November7:05 AM4:46 PM9h 41m
December7:33 AM4:39 PM9h 06m

Nearby Stations

Redding 12 Wnw, CA March 19 - November 22 Shasta Dam, CA February 8 - December 28 Redding Muni AP, CA March 3 - November 21 Trinity Rvr Hatchery, CA April 23 - October 22 Weaverville, CAMay 3 - October 11 Red Bluff Muni AP, CA February 22 - November 29

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