Frost Dates for Sterling, AK

Based on data from Sterling 6sw weather station, 6 miles away

Elevation: 220 ft

Frost Dates

Last Spring Frost (50%) May 20

First Fall Frost (50%) September 21

30% Probability

Last Spring Frost May 25

First Fall Frost September 15

Hard Freeze (28°F)

Last Spring Hard Freeze May 3

First Fall Hard Freeze September 30

60.54°N, 150.76°W © OpenStreetMap

Growing Season

124 Days May 20 to September 21

USDA Hardiness Zone

Zone 4b

Avg. annual minimum: −25 to −20°F

Learn more

Köppen Climate

Dsc Subarctic (Dry Summer)

Cool, dry summers and cold winters. A rare climate found at high elevations. Very short growing season for cold-tolerant crops only.

Köppen climate map

Temperature

0° 20° 40° 60°

15°

Jan

20°

Feb

24°

Mar

37°

Apr

46°

May

54°

Jun

58°

Jul

56°

Aug

47°

Sep

35°

Oct

22°

Nov

17°

Dec

32°F

28°F

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
January	22°	15°	8°
February	28°	20°	12°
March	33°	24°	15°
April	46°	37°	28°
May	56°	46°	35°
June	63°	54°	44°
July	66°	58°	49°
August	64°	56°	47°
September	55°	47°	40°
October	42°	35°	28°
November	28°	22°	15°
December	23°	17°	10°

Precipitation

0" 1" 2" 2.8"

2.5"

Jan

2.0"

Feb

1.8"

Mar

1.5"

Apr

1.6"

May

1.6"

Jun

2.2"

Jul

2.8"

Aug

2.5"

Sep

2.3"

Oct

2.3"

Nov

2.7"

Dec

Precipitation table

Average monthly precipitation (inches)
Month	Precipitation
January	2.5
February	2.0
March	1.8
April	1.5
May	1.6
June	1.6
July	2.2
August	2.8
September	2.5
October	2.3
November	2.3
December	2.7

Sunrise / Sunset

Jan: 10:07 AM – 4:19 PM · 6h 12m

Feb: 8:57 AM – 5:40 PM · 8h 43m

Mar: 8:33 AM – 7:53 PM · 11h 20m

Apr: 6:56 AM – 9:12 PM · 14h 16m

May: 5:32 AM – 10:28 PM · 16h 56m

Jun: 4:46 AM – 11:22 PM · 18h 37m

Jul: 5:13 AM – 11:06 PM · 17h 53m

Aug: 6:25 AM – 9:51 PM · 15h 25m

Sep: 7:42 AM – 8:14 PM · 12h 31m

Oct: 8:58 AM – 6:39 PM · 9h 41m

Nov: 9:20 AM – 4:17 PM · 6h 57m

Dec: 10:18 AM – 3:41 PM · 5h 23m

Daylight Alaska Time (AKT) Longest: 18h 40m · Shortest: 5h 20m

Sunrise and sunset table

Sunrise, sunset, and daylight on the 15th of each month (Alaska Time (AKT))
Month	Sunrise	Sunset	Daylight
January	10:07 AM	4:19 PM	6h 12m
February	8:57 AM	5:40 PM	8h 43m
March	8:33 AM	7:53 PM	11h 20m
April	6:56 AM	9:12 PM	14h 16m
May	5:32 AM	10:28 PM	16h 56m
June	4:46 AM	11:22 PM	18h 37m
July	5:13 AM	11:06 PM	17h 53m
August	6:25 AM	9:51 PM	15h 25m
September	7:42 AM	8:14 PM	12h 31m
October	8:58 AM	6:39 PM	9h 41m
November	9:20 AM	4:17 PM	6h 57m
December	10:18 AM	3:41 PM	5h 23m

Nearby Stations

Soldotna 5ssw, AK June 11 - September 1 Kenai Muni AP, AK May 24 - September 12 Kenai 9n, AKMay 18 - September 22 Kenai 29 Ene, AK June 1 - September 8 Cooper Landing 5 W, AK June 12 - September 1 Cooper Lake Project, AK May 18 - September 27

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