Frost Dates for Forest Ranch, CA

Based on data from De Sabla weather station, 3 miles away

Frost Dates

Last Spring Frost (50%) iA 50% chance that the last spring frost has already passed by this date. Most gardeners use this as their primary planting guide. April 17
First Fall Frost (50%) iA 50% chance that the first fall frost has occurred by this date. Plan to harvest or protect tender plants before this date. November 11
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

30% Probability iOnly 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 April 26
First Fall Frost November 3

Hard Freeze (28°F)

Last Spring Hard Freeze March 20
First Fall Hard Freeze November 27
39.88°N, -121.67°W © OpenStreetMap

Growing Season

208 Days April 17 to November 11

USDA Hardiness Zone iHardiness 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 9a

Avg. annual minimum: 20 to 25°F (−7 to −4°C)

Learn more

Köppen Climate iThe 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

30° 50° 70° 90°
44°
High: 53°F
Avg: 44°F
Low: 35°F
Jan
45°
High: 55°F
Avg: 45°F
Low: 35°F
Feb
49°
High: 60°F
Avg: 49°F
Low: 37°F
Mar
53°
High: 66°F
Avg: 53°F
Low: 40°F
Apr
60°
High: 74°F
Avg: 60°F
Low: 47°F
May
68°
High: 84°F
Avg: 68°F
Low: 53°F
Jun
75°
High: 91°F
Avg: 75°F
Low: 58°F
Jul
74°
High: 91°F
Avg: 74°F
Low: 57°F
Aug
69°
High: 86°F
Avg: 69°F
Low: 53°F
Sep
60°
High: 74°F
Avg: 60°F
Low: 46°F
Oct
49°
High: 59°F
Avg: 49°F
Low: 38°F
Nov
43°
High: 51°F
Avg: 43°F
Low: 34°F
Dec
32°F
Avg High Avg Temp Avg Low Light Frost (32°F)

Precipitation

0" 5" 10" 15" 17.6"
16.3"
16.34"
Jan
17.6"
17.58"
Feb
14.3"
14.30"
Mar
8.5"
8.50"
Apr
6.9"
6.87"
May
2.7"
2.68"
Jun
0.0"
0.00"
Jul
0.0"
0.00"
Aug
0.7"
0.65"
Sep
7.6"
7.64"
Oct
10.6"
10.59"
Nov
14.3"
14.26"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9.5h10.5h11.5h13h14h15h14.5h13.5h12h11h10h9h
Jan: 7:16 AM – 4:44 PM · 9h 28m
Feb: 6:46 AM – 5:14 PM · 10h 29m
Mar: 6:09 AM – 5:51 PM · 11h 41m
Apr: 5:28 AM – 6:32 PM · 13h 04m
May: 4:54 AM – 7:06 PM · 14h 12m
Jun: 4:36 AM – 7:24 PM · 14h 49m
Jul: 4:43 AM – 7:17 PM · 14h 34m
Aug: 5:13 AM – 6:47 PM · 13h 35m
Sep: 5:53 AM – 6:07 PM · 12h 15m
Oct: 6:32 AM – 5:28 PM · 10h 55m
Nov: 7:07 AM – 4:53 PM · 9h 45m
Dec: 7:24 AM – 4:36 PM · 9h 11m
Daylight Longest: 14h 50m · Shortest: 9h 10m

Nearby Stations

Paradise, CA February 7 - December 18 Chico Univ Farm, CA March 4 - November 17 Oroville, CA January 30 - December 13 Oroville Muni AP, CA January 29 - December 7 Orland, CA February 25 - December 2 Mineral, CAJune 10 - September 13

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