Hayes River, Alaska climate: Climate normals at a NOAA weather station
Hayes River's normal year runs from 5°F January nights to 69°F July afternoons. (NOAA 1991-2020 normals)
In metric: a yearly mean of 1.3°C, January lows of −15°C, July highs of 21°C.
- NOAA stationHayes River
- Station IDUSC00503573
- Location61.99°N 152.08°W
- Elevation1,000 ft (305 m)
On October 23, the normal high in Hayes River is 38°F and the normal low 20°F.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Hayes River.
- Jan 22° 5°
- Feb 28° 9°
- Mar 34° 10°
- Apr 45° 23°
- May 56° 32°
- Jun 67° 42°
- Jul 69° 47°
- Aug 66° 45°
- Sep 56° 36°
- Oct 41° 23°
- Nov 28° 12°
- Dec 23° 7°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like at Hayes River each month?
July is the warmest month, with normal highs of 69°F; January the coldest, with normal lows of 5°F.
| Month | High | Low | Mean | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|
| January | 22°F | 5°F | 13.6°F | – | <1 | 31 | 6 h 10 min |
| February | 28°F | 9°F | 18.4°F | – | <1 | 28 | 8 h 50 min |
| March | 34°F | 10°F | 22.2°F | – | <1 | 31 | 11 h 40 min |
| April | 45°F | 23°F | 34.0°F | – | <1 | 27 | 14 h 40 min |
| May | 56°F | 32°F | 43.8°F | – | <1 | 14 | 17 h 40 min |
| June | 67°F | 42°F | 54.5°F | – | <1 | 2 | 19 h 40 min |
| July | 69°F | 47°F | 58.1°F | – | <1 | <1 | 18 h 50 min |
| August | 66°F | 45°F | 55.4°F | – | <1 | 1 | 16 h 10 min |
| September | 56°F | 36°F | 46.2°F | – | <1 | 9 | 13 h |
| October | 41°F | 23°F | 32.0°F | – | <1 | 28 | 10 h 10 min |
| November | 28°F | 12°F | 19.8°F | – | <1 | 30 | 7 h 10 min |
| December | 23°F | 7°F | 14.9°F | – | <1 | 31 | 5 h 20 min |
| Year (annual) | 45°F | 24°F | 34.4°F | – | <1 | 230 |
The same normals in °C and millimetres
| Month | High | Low | Mean |
|---|---|---|---|
| January | −6°C | −15°C | −10.2°C |
| February | −2°C | −13°C | −7.6°C |
| March | 1°C | −12°C | −5.4°C |
| April | 7°C | −5°C | 1.1°C |
| May | 13°C | 0°C | 6.6°C |
| June | 20°C | 5°C | 12.5°C |
| July | 21°C | 8°C | 14.5°C |
| August | 19°C | 7°C | 13.0°C |
| September | 13°C | 2°C | 7.9°C |
| October | 5°C | −5°C | 0.0°C |
| November | −2°C | −11°C | −6.8°C |
| December | −5°C | −14°C | −9.5°C |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Puntilla (23 miles away), gets 96 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00503573; 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.
Which months are mildest at Hayes River?
Normal highs sit between 65°F and 85°F in June, July and August.
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 USC00503573.
When is the last frost at Hayes River?
In Hayes River, the last spring frost (32°F) comes after June 2 in half of years and after June 11 in one year in ten; the first autumn frost comes before September 8 in half of years and before August 23 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 21 year in 10 after June 11; 9 in 10 after May 21
- First autumn frost, half of years before
- September 81 year in 10 before August 23; 9 in 10 before September 23
NOAA puts the median frost-free season at 98 days, and the season without a hard freeze (28°F) at 124 days.
A hard freeze (28°F) comes after May 21 in half of springs and before September 22 in half of autumns.
Frost dates for every NOAA station in Alaska · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00503573. 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 at Hayes River?
In a normal year in Hayes River, a 90°F day is rare and 230 nights fall to 32°F or colder.
- Days at 90°F or more
- fewer than 1a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 230a normal year
- Days that stay below freezing
- 113high of 32°F or less
Source: NOAA NCEI 1991-2020 annual normals, station USC00503573.
How sunny is it at Hayes River?
Over a year 66% of the sunlight that would reach the ground under clear skies gets through the clouds at Hayes River, 2.7 kWh per square metre a day. March is the sunniest month (79%) and October the cloudiest (55%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 61% | 0.3 |
| February | 62% | 1.0 |
| March | 79% | 2.9 |
| April | 79% | 4.6 |
| May | 67% | 5.1 |
| June | 66% | 5.5 |
| July | 63% | 4.8 |
| August | 62% | 3.8 |
| September | 60% | 2.4 |
| October | 55% | 1.1 |
| November | 57% | 0.4 |
| December | 60% | 0.1 |
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 many heating and cooling degree days does Hayes River record?
A normal year at Hayes River brings 11,147 heating degree days, 2.1 times the median U.S. place (5,373), and 11 cooling degree days, 99% fewer than the median (908). Eleven months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 617 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,593 | 0 |
| February | 1,305 | 0 |
| March | 1,327 | 0 |
| April | 930 | 0 |
| May | 659 | 0 |
| June | 318 | 3 |
| July | 221 | 7 |
| August | 301 | 1 |
| September | 564 | 0 |
| October | 1,023 | 0 |
| November | 1,356 | 0 |
| December | 1,552 | 0 |
| Year (annual) | 11,147 | 11 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00503573. 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.
How does Hayes River's climate compare?
Hayes River is warmer than 40 of the 85 places with their own NOAA record in Alaska. Across the 7,247 U.S. stations with normals, its annual mean of 34.4°F is warmer than 1%.
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers.
Questions about Hayes River's climate
What is the coldest month at Hayes River?
January, with a normal high of 22°F and a normal low of 5°F. The warmest is July (69°F by day, 47°F at night).
Does it snow at Hayes River?
Yes. NOAA publishes no 1991-2020 snowfall normal for the station; the nearest record that keeps one, Puntilla (23 miles away), records 96 inches of snow in a normal year.
How late can frost come at Hayes River?
In half of years the last 32°F night comes after June 2; in one year in ten it comes after June 11. Waiting until June 11 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Alaska climateThe statewide normals and every place in the state
- Puntilla, AK22 miles from this station, 30.1°F a year
- Skwentna, AK28 miles from this station, 34.5°F a year
- Amber Lake, AK53 miles from this station, 36.3°F a year
- Farewell Lake, AK63 miles from this station, 29.8°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made