Frost Dates for Stony Gorge Rsvr, CA

Elevation: 244 m

Frost Dates

Last Spring Frost (50%) April 5

First Fall Frost (50%) November 13

30% Probability

Last Spring Frost April 14

First Fall Frost November 6

Hard Freeze (28°F)

Last Spring Hard Freeze March 1

First Fall Hard Freeze November 29

39.59°N, 122.53°W © OpenStreetMap

Growing Season

222 Days April 5 to November 13

USDA Hardiness Zone

Zone 9a

Avg. annual minimum: 20 to 25°F

Learn more

Köppen Climate

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°

45°

Jan

48°

Feb

51°

Mar

56°

Apr

64°

May

72°

Jun

78°

Jul

77°

Aug

72°

Sep

62°

Oct

51°

Nov

44°

Dec

32°F

Avg High Avg Temp Avg Low Light Frost (32°F)

Temperature table

Average monthly temperatures (°F)
Month	Avg High	Avg Temp	Avg Low
January	56°	45°	34°
February	60°	48°	36°
March	64°	51°	38°
April	70°	56°	41°
May	80°	64°	48°
June	89°	72°	55°
July	96°	78°	61°
August	95°	77°	59°
September	90°	72°	54°
October	79°	62°	46°
November	64°	51°	37°
December	56°	44°	33°

Precipitation

0" 2" 4" 5.5"

5.5"

Jan

5.2"

Feb

4.7"

Mar

3.0"

Apr

3.1"

May

0.7"

Jun

0.0"

Jul

0.0"

Aug

0.0"

Sep

2.0"

Oct

4.3"

Nov

5.0"

Dec

Precipitation table

Average monthly precipitation (inches)
Month	Precipitation
January	5.5
February	5.2
March	4.7
April	3.0
May	3.1
June	0.7
July	0.0
August	0.0
September	0.0
October	2.0
November	4.3
December	5.0

Sunrise / Sunset

Jan: 7:15 AM – 4:45 PM · 9h 30m

Feb: 6:45 AM – 5:15 PM · 10h 30m

Mar: 6:09 AM – 5:51 PM · 11h 41m

Apr: 5:28 AM – 6:32 PM · 13h 03m

May: 4:55 AM – 7:05 PM · 14h 11m

Jun: 4:36 AM – 7:24 PM · 14h 47m

Jul: 4:44 AM – 7:16 PM · 14h 32m

Aug: 5:13 AM – 6:47 PM · 13h 34m

Sep: 5:53 AM – 6:07 PM · 12h 15m

Oct: 6:32 AM – 5:28 PM · 10h 56m

Nov: 7:07 AM – 4:53 PM · 9h 47m

Dec: 7:24 AM – 4:36 PM · 9h 13m

Daylight Longest: 14h 48m · Shortest: 9h 12m

Sunrise and sunset table

Sunrise, sunset, and daylight on the 15th of each month (local solar time)
Month	Sunrise	Sunset	Daylight
January	7:15 AM	4:45 PM	9h 30m
February	6:45 AM	5:15 PM	10h 30m
March	6:09 AM	5:51 PM	11h 41m
April	5:28 AM	6:32 PM	13h 03m
May	4:55 AM	7:05 PM	14h 11m
June	4:36 AM	7:24 PM	14h 47m
July	4:44 AM	7:16 PM	14h 32m
August	5:13 AM	6:47 PM	13h 34m
September	5:53 AM	6:07 PM	12h 15m
October	6:32 AM	5:28 PM	10h 56m
November	7:07 AM	4:53 PM	9h 47m
December	7:24 AM	4:36 PM	9h 13m

Nearby Stations

Willows 6 W, CA February 21 - December 6 East Park Rsvr, CA April 6 - November 10 Orland, CA February 25 - December 2 Potter Valley Powerhouse, CA April 8 - November 6 Chico Univ Farm, CA March 4 - November 17 Colusa 2 Ssw, CA February 14 - December 1

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