Hayden weather by month
What a typical year looks like in Hayden, Colorado: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at HAYDEN, 1 km from Hayden; records cover 1909–2026.
The year at a glance
- Precipitation a year
- 18.4 in468 mm
- Snow a year
- 113 in287 cm
- Last spring freeze
- Jun 1
- First fall freeze
- Sep 17
- Heating degree days
- 7,944
- Cooling degree days
- 206
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −10°−23° (heating, 99%) and 92°33° (cooling, 1%).
Month by month
Hayden in January
Highs average 30°−1° and lows 8°−13°, with 1.8 in46 mm of precipitation and 26 in67 cm of snow in a typical January.
- Record high
- 60°16° (1981)
- Record low
- −45°−43° (1963)
- Heating degree days
- 1423
- Cooling degree days
- 0
Hayden in February
Highs average 35°2° and lows 12°−11°, with 1.4 in37 mm of precipitation and 18 in45 cm of snow in a typical February.
- Record high
- 61°16° (1981)
- Record low
- −44°−42° (1933)
- Heating degree days
- 1161
- Cooling degree days
- 0
Hayden in March
Highs average 47°8° and lows 21°−6°, with 1.4 in35 mm of precipitation and 13 in32 cm of snow in a typical March.
- Record high
- 82°28° (2026)
- Record low
- −25°−32° (1947)
- Heating degree days
- 955
- Cooling degree days
- 0
Hayden in April
Highs average 58°15° and lows 29°−2°, with 2.2 in55 mm of precipitation and 10 in25 cm of snow in a typical April.
- Record high
- 84°29° (1930)
- Record low
- −5°−21° (1945)
- Heating degree days
- 645
- Cooling degree days
- 0
Hayden in May
Highs average 69°20° and lows 36°2°, with 1.8 in46 mm of precipitation and 1.4 in3.6 cm of snow in a typical May.
- Record high
- 92°33° (1931)
- Record low
- 15°−9° (1972)
- Heating degree days
- 390
- Cooling degree days
- 1
Hayden in June
Highs average 79°26° and lows 43°6°, with 1.1 in27 mm of precipitation and 0.1 in0.3 cm of snow in a typical June.
- Record high
- 100°38° (1956)
- Record low
- 21°−6° (1922)
- Heating degree days
- 138
- Cooling degree days
- 24
Hayden in July
Highs average 86°30° and lows 50°10°, with 1.1 in28 mm of precipitation in a typical July.
- Record high
- 102°39° (1931)
- Record low
- 27°−3° (1921)
- Heating degree days
- 20
- Cooling degree days
- 107
Hayden in August
Highs average 84°29° and lows 49°9°, with 1.3 in32 mm of precipitation in a typical August.
- Record high
- 98°37° (1913)
- Record low
- 28°−2° (1943)
- Heating degree days
- 36
- Cooling degree days
- 68
Hayden in September
Highs average 75°24° and lows 40°5°, with 1.7 in42 mm of precipitation and 0.2 in0.5 cm of snow in a typical September.
- Record high
- 94°34° (1978)
- Record low
- 7°−14° (1926)
- Heating degree days
- 220
- Cooling degree days
- 6
Hayden in OctoberThis month
Highs average 62°16° and lows 30°−1°, with 1.6 in40 mm of precipitation and 5 in13 cm of snow in a typical October.
- Record high
- 83°28° (1992)
- Record low
- −10°−23° (2020)
- Heating degree days
- 600
- Cooling degree days
- 0
Hayden in November
Highs average 45°7° and lows 20°−7°, with 1.5 in38 mm of precipitation and 16 in40 cm of snow in a typical November.
- Record high
- 74°23° (1999)
- Record low
- −27°−33° (1955)
- Heating degree days
- 974
- Cooling degree days
- 0
Hayden in December
Highs average 31°0° and lows 10°−12°, with 1.7 in42 mm of precipitation and 24 in60 cm of snow in a typical December.
- Record high
- 66°19° (1941)
- Record low
- −41° (1932)
- Heating degree days
- 1382
- Cooling degree days
- 0
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