What is the hottest month in Montrose?

July is the warmest month in Montrose, with an average high of 90.2°F.

What is the coldest month in Montrose?

January is the coldest month in Montrose, with an average low of 17.5°F.

What month does Montrose get the most rain?

September is typically the wettest month in Montrose, with about 1.24 inches of precipitation.

What plant hardiness zone is Montrose in?

Montrose is approximately in USDA plant hardiness Zone 7a, based on the average annual extreme minimum temperature.

Has the climate in Montrose changed recently?

22.1% of Montrose'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.

Montrose, CO

Climate overview — based on NOAA 1991-2020 normals from MONTROSE #2, CO US.

BSk Semi-arid (cold) climate 7a USDA hardiness Zone 7a

Year-round temperatures (°F)

Avg high Avg low

Climate summary

Montrose has an annual average temperature of 51.5°F with about 9.3 inches of precipitation per year and 21.5 inches of snow. The warmest month is July (average high 90.2°F), and the coldest is January (average low 17.5°F). September is typically the wettest month (1.24 in) and February the driest (0.47 in). Snow typically falls from October through April.

Annual swing

45.9°F

warmest to coldest month

Heating need

5,499

HDD/yr

Cooling need

642

CDD/yr

Best time to visit Montrose

Full guide →

Climate change signal

All-time records →

81 of 366 (22.1%) of Montrose'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		21
1900s		33
1910s		9
1920s		19
1930s		37
1940s		40
1950s		37
1960s		12
1970s		15
1980s		14
1990s		12
2000s		24
2010s		42
2020s		51

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	40.2°F	17.5°F	28.8°F	0.51 in	4.7 in	5
February	46.4°F	23.0°F	34.7°F	0.47 in	3.9 in	5
March	56.8°F	30.2°F	43.5°F	0.68 in	2.2 in	5
April	64.1°F	36.6°F	50.3°F	0.77 in	0.6 in	6
May	73.9°F	45.0°F	59.4°F	0.82 in	—	6
June	85.5°F	53.3°F	69.4°F	0.50 in	—	3
July	90.2°F	59.2°F	74.7°F	0.90 in	—	6
August	87.1°F	57.5°F	72.3°F	1.12 in	—	8
September	79.4°F	49.0°F	64.2°F	1.24 in	—	7
October	66.5°F	37.3°F	51.9°F	1.03 in	0.5 in	6
November	52.2°F	27.2°F	39.7°F	0.65 in	2.7 in	4
December	40.6°F	17.7°F	29.2°F	0.64 in	6.9 in	5