Hayden, Colorado climate: Normal weather by month, frost dates and records
Hayden's normal year runs from 8°F January nights to 86°F July afternoons, with 18.4 inches of precipitation and 113 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 6.5°C, January lows of −13°C, July highs of 30°C, 468 mm of precipitation a year.
- NOAA stationHayden
- Station IDUSC00053867
- Location40.49°N 107.25°W
- Elevation6,467 ft (1,971 m)
- Population1,920
On October 23, the normal high in Hayden is 58°F and the normal low 27°F, and the chance of measurable rain or snow is 27%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Hayden.
- Jan 30° 8°
- Feb 35° 12°
- Mar 47° 21°
- Apr 58° 29°
- May 69° 36°
- Jun 79° 43°
- Jul 86° 50°
- Aug 84° 49°
- Sep 75° 40°
- Oct 62° 30°
- Nov 45° 20°
- Dec 31° 10°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Hayden each month?
July is the warmest month, with normal highs of 86°F; January the coldest, with normal lows of 8°F. The most precipitation falls in April (2.15 in), the least in June (1.06 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 30°F | 8°F | 19.1°F | 1.80 | 26.3 | 12 | <1 | 31 | 9 h 30 min |
| February | 35°F | 12°F | 23.5°F | 1.44 | 17.9 | 11 | <1 | 28 | 10 h 40 min |
| March | 47°F | 21°F | 34.2°F | 1.38 | 12.6 | 10 | <1 | 29 | 11 h 50 min |
| April | 58°F | 29°F | 43.5°F | 2.15 | 10.0 | 11 | <1 | 21 | 13 h 10 min |
| May | 69°F | 36°F | 52.5°F | 1.83 | 1.4 | 11 | <1 | 7 | 14 h 20 min |
| June | 79°F | 43°F | 61.2°F | 1.06 | 0.1 | 7 | 2 | 1 | 15 h |
| July | 86°F | 50°F | 67.8°F | 1.09 | 0.0 | 8 | 8 | <1 | 14 h 50 min |
| August | 84°F | 49°F | 66.0°F | 1.27 | 0.0 | 9 | 3 | <1 | 13 h 50 min |
| September | 75°F | 40°F | 57.9°F | 1.67 | 0.2 | 9 | <1 | 3 | 12 h 30 min |
| October | 62°F | 30°F | 45.7°F | 1.57 | 5.0 | 8 | <1 | 19 | 11 h 10 min |
| November | 45°F | 20°F | 32.5°F | 1.49 | 15.7 | 9 | <1 | 28 | 10 h |
| December | 31°F | 10°F | 20.4°F | 1.66 | 23.8 | 11 | <1 | 31 | 9 h 20 min |
| Year (annual) | 58°F | 29°F | 43.7°F | 18.41 | 113.0 | 116 | 13 | 197 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | −1°C | −13°C | −7.2°C | 46 mm | 67 cm |
| February | 2°C | −11°C | −4.7°C | 37 mm | 45 cm |
| March | 8°C | −6°C | 1.2°C | 35 mm | 32 cm |
| April | 15°C | −2°C | 6.4°C | 55 mm | 25 cm |
| May | 20°C | 2°C | 11.4°C | 46 mm | 4 cm |
| June | 26°C | 6°C | 16.2°C | 27 mm | 0 cm |
| July | 30°C | 10°C | 19.9°C | 28 mm | 0 cm |
| August | 29°C | 9°C | 18.9°C | 32 mm | 0 cm |
| September | 24°C | 5°C | 14.4°C | 42 mm | 1 cm |
| October | 16°C | −1°C | 7.6°C | 40 mm | 13 cm |
| November | 7°C | −7°C | 0.3°C | 38 mm | 40 cm |
| December | 0°C | −12°C | −6.4°C | 42 mm | 60 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00053867; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Hayden?
Normal highs sit between 65°F and 85°F in May, June, August and September. Of those, June has the fewest days with rain (7).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00053867.
When is the last frost in Hayden?
In Hayden, the last spring frost (32°F) comes after June 1 in half of years and after June 16 in one year in ten; the first autumn frost comes before September 20 in half of years and before September 7 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- June 11 year in 10 after June 16; 9 in 10 after May 15
- First autumn frost, half of years before
- September 201 year in 10 before September 7; 9 in 10 before September 30
NOAA puts the median frost-free season at 109 days, and the season without a hard freeze (28°F) at 138 days.
A hard freeze (28°F) comes after May 13 in half of springs and before September 29 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Hayden in zone 5a in ZIP code 81639, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Hayden's NOAA station is in zone 5a: the coldest night of a typical year reaches −19°F (30 complete years).
Frost dates for every NOAA station in Colorado · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00053867; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get in Hayden?
In a normal year in Hayden, 13 days a year reach 90°F, 197 nights fall to 32°F or colder and 116 days bring measurable precipitation.
- Days at 90°F or more
- 13a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 197a normal year
- Days that stay below freezing
- 52high of 32°F or less
- Days with 0.01 inch of precipitation
- 116a normal year
- Days with 1 inch of snow or more
- 40a normal year
The highest temperature in this station's record (since 1909) is 100°F, on June 14, 1956; the lowest is −45°F, on January 12, 1963.
The wettest calendar year on that record is 1997, with 26.41 in; the snowiest season is 2022–23, with 197.8 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00053867; records: ACIS (NOAA Regional Climate Centers), station USC00053867. Records use complete months only; a month missing more than three days is left out.
How sunny is Hayden?
Over a year 78% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Hayden, 4.7 kWh per square metre a day. June is the sunniest month (85%) and December the cloudiest (68%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 72% | 2.3 |
| February | 71% | 3.2 |
| March | 75% | 4.6 |
| April | 72% | 5.5 |
| May | 75% | 6.5 |
| June | 85% | 7.7 |
| July | 84% | 7.2 |
| August | 83% | 6.3 |
| September | 84% | 5.3 |
| October | 77% | 3.7 |
| November | 73% | 2.5 |
| December | 68% | 1.9 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Hayden need?
A normal year in Hayden brings 7,943 heating degree days, 48% more than the median U.S. place (5,373), and 206 cooling degree days, 77% fewer than the median (908). Eight months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 1,831 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,423 | 0 |
| February | 1,161 | 0 |
| March | 955 | 0 |
| April | 645 | 0 |
| May | 390 | 1 |
| June | 138 | 24 |
| July | 20 | 107 |
| August | 36 | 68 |
| September | 221 | 6 |
| October | 600 | 0 |
| November | 974 | 0 |
| December | 1,383 | 0 |
| Year (annual) | 7,943 | 206 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00053867. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
Has Hayden been warmer than normal lately?
2025 averaged 47.1°F, 3.4°F above the 1991-2020 normal of 43.7°F. 5 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 45.9°F | +2.2°F | 14.60 | 104.0 |
| 2022 | 44.0°F | +0.3°F | 20.92 | 135.8 |
| 2023 | 43.8°F | +0.1°F | 17.84 | 155.3 |
| 2024 | 45.9°F | +2.2°F | 20.49 | 125.5 |
| 2025 | 47.1°F | +3.4°F | 14.55 | 99.5 |
Over 75 complete years from 1915 to 2025, the station's annual mean temperature rose at a fitted 3.6°F per century (+0.20°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00053867; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Hayden's climate compare?
Hayden is warmer than 33 of the other 124 places with their own NOAA record in Colorado, and wetter than 97. Across the 7,247 U.S. stations with normals, its annual mean of 43.7°F is warmer than 14%.
In the Köppen classification computed from these normals, Hayden is Dfb: continental, no dry season, warm summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Questions about Hayden's climate
What is the coldest month in Hayden?
January, with a normal high of 30°F and a normal low of 8°F. The warmest is July (86°F by day, 50°F at night).
Does it snow in Hayden?
Yes: 113 inches in a normal year, falling on 55 days with 0.1 inch or more, the most in January (26.3 inches).
What is the rainiest month in Hayden?
April, with 2.15 in of precipitation in a normal year; the driest is June with 1.06 in.
What plant hardiness zone is Hayden in?
The USDA's 2023 map puts Hayden in zone 5a in ZIP code 81639, the nearest ZIP area. By the same method at Hayden's NOAA station, the coldest night of a typical year reaches −19°F (30 years, 1991-2020): zone 5a.
How late can frost come in Hayden?
In half of years the last 32°F night comes after June 1; in one year in ten it comes after June 16. Waiting until June 16 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Colorado climateThe statewide normals and every place in the state
- Craig, CO14 miles from this station, 42.9°F a year
- Steamboat Springs, CO22 miles from this station, 40.8°F a year
- Yampa, CO29 miles from this station, 40.2°F a year
- Spicer, CO42 miles from this station, 37.9°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made