Frost Dates for Gillette Campbell AP, WY

Elevation: 1327 m

Frost Dates

Last Spring Frost (50%) May 22

First Fall Frost (50%) September 25

30% Probability

Last Spring Frost May 28

First Fall Frost September 19

Hard Freeze (28°F)

Last Spring Hard Freeze May 9

First Fall Hard Freeze October 4

44.34°N, 105.54°W © OpenStreetMap

Growing Season

126 Days May 22 to September 25

USDA Hardiness Zone

Zone 5a

Avg. annual minimum: −20 to −15°F

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Köppen Climate

BSk Cold Semi-Arid (Steppe)

Cool to cold with low rainfall and wide temperature swings. Common in the western Great Plains and central Asia. Short growing seasons benefit from season extension techniques.

Köppen climate map

Temperature

10° 30° 50° 70° 90°

25°

Jan

26°

Feb

36°

Mar

43°

Apr

52°

May

62°

Jun

71°

Jul

70°

Aug

59°

Sep

46°

Oct

34°

Nov

26°

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	36°	25°	14°
February	37°	26°	15°
March	48°	36°	23°
April	55°	43°	30°
May	65°	52°	39°
June	77°	62°	48°
July	87°	71°	56°
August	86°	70°	54°
September	75°	59°	44°
October	59°	46°	32°
November	46°	34°	22°
December	36°	26°	15°

Precipitation

0" 1" 2" 3" 3.1"

0.9"

Jan

0.8"

Feb

1.5"

Mar

2.3"

Apr

3.1"

May

2.6"

Jun

2.1"

Jul

1.7"

Aug

1.8"

Sep

2.0"

Oct

1.4"

Nov

1.0"

Dec

Precipitation table

Average monthly precipitation (inches)
Month	Precipitation
January	0.9
February	0.8
March	1.5
April	2.3
May	3.1
June	2.6
July	2.1
August	1.7
September	1.8
October	2.0
November	1.4
December	1.0

Sunrise / Sunset

Jan: 7:29 AM – 4:31 PM · 9h 01m

Feb: 6:53 AM – 5:07 PM · 10h 13m

Mar: 6:11 AM – 5:49 PM · 11h 38m

Apr: 5:23 AM – 6:37 PM · 13h 15m

May: 4:42 AM – 7:18 PM · 14h 35m

Jun: 4:20 AM – 7:40 PM · 15h 19m

Jul: 4:29 AM – 7:31 PM · 15h 01m

Aug: 5:05 AM – 6:55 PM · 13h 51m

Sep: 5:51 AM – 6:09 PM · 12h 17m

Oct: 6:38 AM – 5:22 PM · 10h 44m

Nov: 7:19 AM – 4:41 PM · 9h 21m

Dec: 7:40 AM – 4:20 PM · 8h 41m

Daylight Longest: 15h 21m · Shortest: 8h 39m

Sunrise and sunset table

Sunrise, sunset, and daylight on the 15th of each month (local solar time)
Month	Sunrise	Sunset	Daylight
January	7:29 AM	4:31 PM	9h 01m
February	6:53 AM	5:07 PM	10h 13m
March	6:11 AM	5:49 PM	11h 38m
April	5:23 AM	6:37 PM	13h 15m
May	4:42 AM	7:18 PM	14h 35m
June	4:20 AM	7:40 PM	15h 19m
July	4:29 AM	7:31 PM	15h 01m
August	5:05 AM	6:55 PM	13h 51m
September	5:51 AM	6:09 PM	12h 17m
October	6:38 AM	5:22 PM	10h 44m
November	7:19 AM	4:41 PM	9h 21m
December	7:40 AM	4:20 PM	8h 41m

Nearby Stations

Gillette 4se, WY May 15 - October 1 Echeta 2 Nw, WY May 21 - September 23 Weston 1 E, WY May 23 - September 18 Dillinger, WY May 25 - September 17 Moorcroft 3s, WY May 22 - September 28 Wright 12w, WY May 25 - September 23

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