Eagle River Nature Center, Alaska climate: Climate normals at a NOAA weather station
Eagle River Nature Center's normal year runs from 6°F January nights to 67°F July afternoons, with 22.6 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 1.9°C, January lows of −14°C, July highs of 20°C, 573 mm of precipitation a year.
- NOAA stationEagle River Nature Center
- Station IDUSC00502642
- Location61.23°N 149.27°W
- Elevation520 ft (159 m)
On October 23, the normal high in Eagle River Nature Center is 38°F and the normal low 22°F.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Eagle River Nature Center.
- Jan 21° 6°
- Feb 28° 12°
- Mar 35° 15°
- Apr 47° 27°
- May 58° 36°
- Jun 65° 44°
- Jul 67° 48°
- Aug 65° 45°
- Sep 56° 37°
- Oct 42° 26°
- Nov 26° 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 Nature Center each month?
July is the warmest month, with normal highs of 67°F; January the coldest, with normal lows of 6°F. The most precipitation falls in September (3.64 in), the least in April (0.76 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 21°F | 6°F | 13.7°F | 2.26 | – | <1 | 30 | 6 h 20 min |
| February | 28°F | 12°F | 19.8°F | 1.64 | – | <1 | 27 | 9 h |
| March | 35°F | 15°F | 25.0°F | 1.56 | – | <1 | 29 | 11 h 40 min |
| April | 47°F | 27°F | 36.8°F | 0.76 | – | <1 | 24 | 14 h 40 min |
| May | 58°F | 36°F | 46.9°F | 0.94 | – | <1 | 8 | 17 h 20 min |
| June | 65°F | 44°F | 54.6°F | 1.31 | – | <1 | 1 | 19 h 20 min |
| July | 67°F | 48°F | 57.7°F | 1.68 | – | <1 | <1 | 18 h 30 min |
| August | 65°F | 45°F | 54.7°F | 2.62 | – | <1 | <1 | 16 h |
| September | 56°F | 37°F | 46.6°F | 3.64 | – | <1 | 5 | 13 h |
| October | 42°F | 26°F | 33.9°F | 2.46 | – | <1 | 21 | 10 h 10 min |
| November | 26°F | 13°F | 19.7°F | 1.72 | – | <1 | 28 | 7 h 20 min |
| December | 23°F | 9°F | 16.1°F | 1.96 | – | <1 | 30 | 5 h 30 min |
| Year (annual) | 45°F | 26°F | 35.4°F | 22.55 | – | <1 | 204 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | −6°C | −14°C | −10.2°C | 57 mm |
| February | −2°C | −11°C | −6.8°C | 42 mm |
| March | 2°C | −10°C | −3.9°C | 40 mm |
| April | 8°C | −3°C | 2.7°C | 19 mm |
| May | 14°C | 2°C | 8.3°C | 24 mm |
| June | 19°C | 7°C | 12.6°C | 33 mm |
| July | 20°C | 9°C | 14.3°C | 43 mm |
| August | 18°C | 7°C | 12.6°C | 67 mm |
| September | 13°C | 3°C | 8.1°C | 92 mm |
| October | 6°C | −4°C | 1.1°C | 62 mm |
| November | −3°C | −11°C | −6.8°C | 44 mm |
| December | −5°C | −13°C | −8.8°C | 50 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Eagle River (5 mi SE) (7 miles away), gets 59 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00502642; 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 Nature Center?
Normal highs sit between 65°F and 85°F in June and July.
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 USC00502642.
When is the last frost at Eagle River Nature Center?
In Eagle River Nature Center, the last spring frost (32°F) comes after May 16 in half of years and after June 9 in one year in ten; the first autumn frost comes before September 20 in half of years and before September 4 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 161 year in 10 after June 9; 9 in 10 after May 2
- First autumn frost, half of years before
- September 201 year in 10 before September 4; 9 in 10 before October 3
NOAA puts the median frost-free season at 125 days, and the season without a hard freeze (28°F) at 154 days.
A hard freeze (28°F) comes after May 1 in half of springs and before October 1 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Eagle River Nature Center in zone 5a in ZIP code 99577, the nearest ZIP area.
Frost dates for every NOAA station in Alaska · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00502642; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026. 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 Nature Center?
In a normal year in Eagle River Nature Center, a 90°F day is rare and 204 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
- 204a normal year
- Days that stay below freezing
- 98high of 32°F or less
Source: NOAA NCEI 1991-2020 annual normals, station USC00502642.
How sunny is it at Eagle River Nature Center?
Over a year 64% of the sunlight that would reach the ground under clear skies gets through the clouds at Eagle River Nature Center, 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 Nature Center record?
A normal year at Eagle River Nature Center brings 10,764 heating degree days, 2.0 times the median U.S. place (5,373), and 5 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 587 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,592 | 0 |
| February | 1,266 | 0 |
| March | 1,240 | 0 |
| April | 846 | 0 |
| May | 563 | 0 |
| June | 315 | 2 |
| July | 230 | 3 |
| August | 320 | 0 |
| September | 552 | 0 |
| October | 964 | 0 |
| November | 1,360 | 0 |
| December | 1,516 | 0 |
| Year (annual) | 10,764 | 5 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00502642. 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 Nature Center been warmer than normal?
2025 averaged 34.7°F, 0.7°F below the 1991-2020 normal of 35.4°F. 0 of the 2 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 33.9°F | −1.5°F | 24.74 |
| 2025 | 34.7°F | −0.7°F | 22.76 |
Source: observed years: ACIS, station USC00502642. A year counts only with all twelve months complete.
How does Eagle River Nature Center's climate compare?
Eagle River Nature Center is warmer than 42 of the 85 places with their own NOAA record in Alaska, and wetter than 41. Across the 7,247 U.S. stations with normals, its annual mean of 35.4°F is warmer than 2%.
In the Köppen classification computed from these normals, Eagle River Nature Center 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 Nature Center's climate
What is the coldest month at Eagle River Nature Center?
January, with a normal high of 21°F and a normal low of 6°F. The warmest is July (67°F by day, 48°F at night).
Does it snow at Eagle River Nature Center?
Yes. NOAA publishes no 1991-2020 snowfall normal for the station; the nearest record that keeps one, Eagle River (5 mi SE) (7 miles away), records 59 inches of snow in a normal year.
What is the rainiest month at Eagle River Nature Center?
September, with 3.64 in of precipitation in a normal year; the driest is April with 0.76 in.
What plant hardiness zone is Eagle River Nature Center in?
The USDA's 2023 map puts Eagle River Nature Center in zone 5a in ZIP code 99577, the nearest ZIP area.
How late can frost come at Eagle River Nature Center?
In half of years the last 32°F night comes after May 16; in one year in ten it comes after June 9. Waiting until June 9 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 (5 mi SE), AK7 miles from this station, 36.7°F a year
- Eagle River Gakona Circle, AK11 miles from this station, 36.1°F a year
- Fort Richardson Water Treatment Plant, AK12 miles from this station, 36.1°F a year
- Eklutna Water Treatment Plant, AK15 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