What is the hottest month in Basin?

July is the warmest month in Basin, with an average high of 92.7°F.

What is the coldest month in Basin?

January is the coldest month in Basin, with an average low of 8.8°F.

What month does Basin get the most rain?

May is typically the wettest month in Basin, with about 1.37 inches of precipitation.

What plant hardiness zone is Basin in?

Basin is approximately in USDA plant hardiness Zone 6a, based on the average annual extreme minimum temperature.

Has the climate in Basin changed recently?

15.6% of Basin's all-time daily heat records were set in the last decade (since 2015), compared to roughly 5% if records were evenly distributed over time.

Basin, WY

Climate overview — based on NOAA 1991-2020 normals from BASIN, WY US.

BWk Desert (cold) climate 6a USDA hardiness Zone 6a

Year-round temperatures (°F)

Avg high Avg low

Climate summary

Basin has an annual average temperature of 48.9°F with about 7.2 inches of precipitation per year and 20.1 inches of snow. The warmest month is July (average high 92.7°F), and the coldest is January (average low 8.8°F). May is typically the wettest month (1.37 in) and January the driest (0.24 in). Snow typically falls from September through April.

Annual swing

55.9°F

warmest to coldest month

Heating need

6,525

HDD/yr

Cooling need

744

CDD/yr

Best time to visit Basin

Full guide →

Climate change signal

All-time records →

57 of 366 (15.6%) of Basin's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.

1890s		3
1900s		34
1910s		23
1920s		33
1930s		53
1940s		7
1950s		36
1960s		15
1970s		22
1980s		38
1990s		16
2000s		20
2010s		28
2020s		38

Bars: number of all-time daily heat records still standing that were set in each decade.

Monthly averages

Month	Avg High	Avg Low	Avg Temp	Precipitation	Snow	Rainy days
January	32.4°F	8.8°F	20.6°F	0.24 in	3.4 in	3
February	39.1°F	14.6°F	26.8°F	0.32 in	4.1 in	4
March	54.1°F	27.4°F	40.7°F	0.31 in	2.3 in	3
April	63.0°F	36.5°F	49.8°F	0.75 in	1.5 in	5
May	72.8°F	46.8°F	59.8°F	1.37 in	0.1 in	7
June	83.7°F	54.7°F	69.2°F	1.04 in	—	6
July	92.7°F	60.3°F	76.5°F	0.41 in	—	3
August	91.0°F	57.2°F	74.1°F	0.32 in	—	4
September	79.3°F	47.5°F	63.4°F	0.95 in	0.2 in	5
October	62.9°F	35.5°F	49.2°F	0.79 in	1.5 in	4
November	46.4°F	22.8°F	34.6°F	0.36 in	3.0 in	3
December	33.8°F	11.4°F	22.6°F	0.30 in	4.0 in	3