Eagle River (5 mi SE), Alaska climate: Climate normals at a NOAA weather station
Eagle River (5 mi SE)'s normal year runs from 7°F January nights to 70°F July afternoons, with 12.5 inches of precipitation and 59 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 2.6°C, January lows of −14°C, July highs of 21°C, 317 mm of precipitation a year.
- NOAA stationEagle River (5 mi SE)
- Station IDUSC00502656
- Location61.30°N 149.44°W
- Elevation498 ft (152 m)
On October 23, the normal high in Eagle River (5 mi SE) is 38°F and the normal low 23°F, and the chance of measurable rain or snow is 23%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Eagle River (5 mi SE).
- Jan 21° 7°
- Feb 29° 12°
- Mar 37° 15°
- Apr 50° 27°
- May 61° 36°
- Jun 68° 44°
- Jul 70° 49°
- Aug 67° 47°
- Sep 58° 39°
- Oct 43° 27°
- Nov 27° 13°
- Dec 23° 9°
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 Eagle River (5 mi SE) each month?
July is the warmest month, with normal highs of 70°F; January the coldest, with normal lows of 7°F. The most precipitation falls in August (2.11 in), the least in April (0.33 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 21°F | 7°F | 13.7°F | 0.56 | 10.3 | 5 | <1 | 30 | 6 h 20 min |
| February | 29°F | 12°F | 20.6°F | 0.62 | 7.6 | 5 | <1 | 27 | 9 h |
| March | 37°F | 15°F | 26.1°F | 0.46 | 7.2 | 4 | <1 | 29 | 11 h 40 min |
| April | 50°F | 27°F | 38.7°F | 0.33 | 1.6 | 3 | <1 | 23 | 14 h 40 min |
| May | 61°F | 36°F | 48.7°F | 0.51 | 0.0 | 4 | <1 | 9 | 17 h 20 min |
| June | 68°F | 44°F | 56.3°F | 0.95 | 0.0 | 7 | <1 | <1 | 19 h 20 min |
| July | 70°F | 49°F | 59.9°F | 1.68 | 0.0 | 9 | <1 | <1 | 18 h 30 min |
| August | 67°F | 47°F | 57.0°F | 2.11 | 0.0 | 13 | <1 | <1 | 16 h |
| September | 58°F | 39°F | 48.5°F | 1.88 | 0.1 | 11 | <1 | 6 | 13 h |
| October | 43°F | 27°F | 34.8°F | 1.36 | 5.7 | 8 | <1 | 23 | 10 h 10 min |
| November | 27°F | 13°F | 20.0°F | 0.93 | 10.7 | 6 | <1 | 29 | 7 h 20 min |
| December | 23°F | 9°F | 16.1°F | 1.10 | 16.1 | 8 | <1 | 30 | 5 h 30 min |
| Year (annual) | 46°F | 27°F | 36.7°F | 12.49 | 59.3 | 80 | <1 | 205 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | −6°C | −14°C | −10.2°C | 14 mm | 26 cm |
| February | −2°C | −11°C | −6.3°C | 16 mm | 19 cm |
| March | 3°C | −9°C | −3.3°C | 12 mm | 18 cm |
| April | 10°C | −3°C | 3.7°C | 8 mm | 4 cm |
| May | 16°C | 2°C | 9.3°C | 13 mm | 0 cm |
| June | 20°C | 7°C | 13.5°C | 24 mm | 0 cm |
| July | 21°C | 10°C | 15.5°C | 43 mm | 0 cm |
| August | 20°C | 8°C | 13.9°C | 54 mm | 0 cm |
| September | 15°C | 4°C | 9.2°C | 48 mm | 0 cm |
| October | 6°C | −3°C | 1.6°C | 35 mm | 14 cm |
| November | −3°C | −10°C | −6.7°C | 24 mm | 27 cm |
| December | −5°C | −13°C | −8.8°C | 28 mm | 41 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00502656; 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 Eagle River (5 mi SE)?
Normal highs sit between 65°F and 85°F in June, July and August. 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 USC00502656.
When is the last frost at Eagle River (5 mi SE)?
In Eagle River (5 mi SE), the last spring frost (32°F) comes after May 21 in half of years and after June 3 in one year in ten; the first autumn frost comes before September 15 in half of years and before August 31 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
- May 211 year in 10 after June 3; 9 in 10 after May 8
- First autumn frost, half of years before
- September 151 year in 10 before August 31; 9 in 10 before September 27
NOAA puts the median frost-free season at 116 days, and the season without a hard freeze (28°F) at 143 days.
A hard freeze (28°F) comes after May 5 in half of springs and before September 26 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Eagle River (5 mi SE) in zone 5a in ZIP code 99504, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, the station is in zone 4b: the coldest night of a typical year reaches −21°F (27 complete years); the map interpolates between stations and terrain, so the station and the ZIP area can differ by half a zone.
Frost dates for every NOAA station in Alaska · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00502656; 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 at Eagle River (5 mi SE)?
In a normal year in Eagle River (5 mi SE), a 90°F day is rare, 205 nights fall to 32°F or colder and 80 days bring measurable precipitation.
- 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
- 205a normal year
- Days that stay below freezing
- 99high of 32°F or less
- Days with 0.01 inch of precipitation
- 80a normal year
- Days with 1 inch of snow or more
- 22a normal year
Source: NOAA NCEI 1991-2020 annual normals, station USC00502656.
How sunny is it at Eagle River (5 mi SE)?
Over a year 64% of the sunlight that would reach the ground under clear skies gets through the clouds at Eagle River (5 mi SE), 2.5 kWh per square metre a day. April is the sunniest month (70%) and October the cloudiest (55%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 57% | 0.3 |
| February | 59% | 0.9 |
| March | 68% | 2.4 |
| April | 70% | 4.0 |
| May | 66% | 5.0 |
| June | 65% | 5.3 |
| July | 63% | 4.8 |
| August | 63% | 3.8 |
| September | 61% | 2.4 |
| October | 55% | 1.1 |
| November | 55% | 0.4 |
| December | 56% | 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 Eagle River (5 mi SE) record?
A normal year at Eagle River (5 mi SE) brings 10,315 heating degree days, 92% more than the median U.S. place (5,373), and 14 cooling degree days, 98% fewer than the median (908). Nine months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 809 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,590 | 0 |
| February | 1,242 | 0 |
| March | 1,206 | 0 |
| April | 791 | 0 |
| May | 505 | 0 |
| June | 266 | 4 |
| July | 166 | 8 |
| August | 252 | 2 |
| September | 497 | 0 |
| October | 936 | 0 |
| November | 1,348 | 0 |
| December | 1,516 | 0 |
| Year (annual) | 10,315 | 14 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00502656. 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.
Have recent years at Eagle River (5 mi SE) been warmer than normal?
2025 averaged 38.3°F, 1.6°F above the 1991-2020 normal of 36.7°F. 3 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 34.2°F | −2.5°F | 11.59 | 85.0 |
| 2022 | 37.9°F | +1.2°F | 12.95 | 105.0 |
| 2023 | 36.8°F | +0.1°F | 9.25 | 82.5 |
| 2024 | 36.6°F | −0.1°F | 5.52 | 43.0 |
| 2025 | 38.3°F | +1.6°F | 6.87 | 23.5 |
Source: observed years: ACIS, station USC00502656. A year counts only with all twelve months complete.
How does Eagle River (5 mi SE)'s climate compare?
Eagle River (5 mi SE) is warmer than 50 of the 85 places with their own NOAA record in Alaska, and wetter than 13. Across the 7,247 U.S. stations with normals, its annual mean of 36.7°F is warmer than 2%.
In the Köppen classification computed from these normals, Eagle River (5 mi SE) is Dsc: continental, dry-summer, cool 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 Eagle River (5 mi SE)'s climate
What is the coldest month at Eagle River (5 mi SE)?
January, with a normal high of 21°F and a normal low of 7°F. The warmest is July (70°F by day, 49°F at night).
Does it snow at Eagle River (5 mi SE)?
Yes: 59 inches in a normal year, falling on 25 days with 0.1 inch or more, the most in December (16.1 inches).
What is the rainiest month at Eagle River (5 mi SE)?
August, with 2.11 in of precipitation in a normal year; the driest is April with 0.33 in.
What plant hardiness zone is Eagle River (5 mi SE) in?
The USDA's 2023 map puts Eagle River (5 mi SE) in zone 5a in ZIP code 99504, the nearest ZIP area. By the same method at the station, the coldest night of a typical year reaches −21°F (27 years, 1991-2020): zone 4b.
How late can frost come at Eagle River (5 mi SE)?
In half of years the last 32°F night comes after May 21; in one year in ten it comes after June 3. Waiting until June 3 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Alaska climateThe statewide normals and every place in the state
- Eagle River Gakona Circle, AK4 miles from this station, 36.1°F a year
- Eagle River Nature Center, AK7 miles from this station, 35.4°F a year
- Fort Richardson Water Treatment Plant, AK9 miles from this station, 36.1°F a year
- Eklutna Water Treatment Plant, AK11 miles from this station, 37.0°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made