What is the hottest month in Hayden?

July is the warmest month in Hayden, with an average high of 85.8°F.

What is the coldest month in Hayden?

January is the coldest month in Hayden, with an average low of 8.1°F.

What month does Hayden get the most rain?

April is typically the wettest month in Hayden, with about 2.15 inches of precipitation.

What plant hardiness zone is Hayden in?

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

Has the climate in Hayden changed recently?

15% of Hayden'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.

Hayden, CO

Climate overview — based on NOAA 1991-2020 normals from HAYDEN, CO US.

Dfb Warm-summer humid continental climate 6a USDA hardiness Zone 6a

Year-round temperatures (°F)

Avg high Avg low

Climate summary

Hayden has an annual average temperature of 43.7°F with about 18.4 inches of precipitation per year and 113 inches of snow. The warmest month is July (average high 85.8°F), and the coldest is January (average low 8.1°F). April is typically the wettest month (2.15 in) and June the driest (1.06 in). Snow typically falls from September through May.

Annual swing

48.7°F

warmest to coldest month

Heating need

7,785

HDD/yr

Cooling need

114

CDD/yr

Best time to visit Hayden

Full guide →

Climate change signal

All-time records →

55 of 366 (15%) of Hayden'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.

1900s		2
1910s		7
1920s		34
1930s		70
1940s		39
1950s		19
1960s		8
1970s		20
1980s		50
1990s		18
2000s		35
2010s		19
2020s		45

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	30.1°F	8.1°F	19.1°F	1.80 in	26.3 in	12
February	35.0°F	12.1°F	23.5°F	1.44 in	17.9 in	11
March	47.2°F	21.2°F	34.2°F	1.38 in	12.6 in	10
April	58.2°F	28.8°F	43.5°F	2.15 in	10.0 in	11
May	68.5°F	36.4°F	52.5°F	1.83 in	1.4 in	11
June	79.4°F	43.0°F	61.2°F	1.06 in	0.1 in	7
July	85.8°F	49.8°F	67.8°F	1.09 in	—	8
August	83.5°F	48.6°F	66.0°F	1.27 in	—	9
September	75.3°F	40.4°F	57.9°F	1.67 in	0.2 in	9
October	61.6°F	29.7°F	45.7°F	1.57 in	5.0 in	8
November	45.4°F	19.7°F	32.5°F	1.49 in	15.7 in	9
December	31.3°F	9.5°F	20.4°F	1.66 in	23.8 in	11