Amber Lake, Alaska climate: Climate normals at a NOAA weather station
Amber Lake's normal year runs from 7°F January nights to 71°F July afternoons, with 31.9 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 2.4°C, January lows of −14°C, July highs of 22°C, 811 mm of precipitation a year.
- NOAA stationAmber Lake
- Station IDUSC00500247
- Location62.19°N 150.50°W
- Elevation449 ft (137 m)
On October 8, the normal high in Amber Lake is 47°F and the normal low 30°F.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Amber Lake.
- Jan 22° 7°
- Feb 29° 11°
- Mar 36° 14°
- Apr 49° 25°
- May 61° 34°
- Jun 71° 43°
- Jul 71° 48°
- Aug 67° 46°
- Sep 57° 38°
- Oct 42° 26°
- Nov 27° 15°
- Dec 24° 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 at Amber Lake each month?
July is the warmest month, with normal highs of 71°F; January the coldest, with normal lows of 7°F. The most precipitation falls in September (5.74 in), the least in March (1.19 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 22°F | 7°F | 14.6°F | 1.66 | – | <1 | 31 | 6 h |
| February | 29°F | 11°F | 20.0°F | 1.69 | – | <1 | 27 | 8 h 50 min |
| March | 36°F | 14°F | 25.1°F | 1.19 | – | <1 | 30 | 11 h 40 min |
| April | 49°F | 25°F | 37.0°F | 1.43 | – | <1 | 25 | 14 h 40 min |
| May | 61°F | 34°F | 47.5°F | 2.09 | – | <1 | 11 | 17 h 40 min |
| June | 71°F | 43°F | 56.9°F | 1.80 | – | 1 | 1 | 19 h 50 min |
| July | 71°F | 48°F | 59.5°F | 3.99 | – | <1 | <1 | 19 h |
| August | 67°F | 46°F | 56.2°F | 4.94 | – | <1 | <1 | 16 h 10 min |
| September | 57°F | 38°F | 47.0°F | 5.74 | – | <1 | 6 | 13 h 10 min |
| October | 42°F | 26°F | 33.9°F | 2.93 | – | <1 | 20 | 10 h 10 min |
| November | 27°F | 15°F | 20.7°F | 2.40 | – | <1 | 29 | 7 h 10 min |
| December | 24°F | 10°F | 16.9°F | 2.07 | – | <1 | 31 | 5 h 10 min |
| Year (annual) | 46°F | 26°F | 36.3°F | 31.93 | – | 1 | 210 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | −5°C | −14°C | −9.7°C | 42 mm |
| February | −2°C | −12°C | −6.7°C | 43 mm |
| March | 2°C | −10°C | −3.8°C | 30 mm |
| April | 9°C | −4°C | 2.8°C | 36 mm |
| May | 16°C | 1°C | 8.6°C | 53 mm |
| June | 22°C | 6°C | 13.8°C | 46 mm |
| July | 22°C | 9°C | 15.3°C | 101 mm |
| August | 19°C | 8°C | 13.4°C | 125 mm |
| September | 14°C | 3°C | 8.3°C | 146 mm |
| October | 5°C | −3°C | 1.1°C | 74 mm |
| November | −3°C | −10°C | −6.3°C | 61 mm |
| December | −4°C | −12°C | −8.4°C | 53 mm |
NOAA publishes no 1991-2020 snowfall normal for this station, and no record within 25 miles keeps one, so snow is left out here rather than estimated.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00500247; 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 Amber Lake?
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 USC00500247.
When is the last frost at Amber Lake?
In Amber Lake, the last spring frost (32°F) comes after May 28 in half of years and after June 9 in one year in ten; the first autumn frost comes before September 13 in half of years and before August 30 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 281 year in 10 after June 9; 9 in 10 after May 14
- First autumn frost, half of years before
- September 131 year in 10 before August 30; 9 in 10 before September 27
NOAA puts the median frost-free season at 107 days, and the season without a hard freeze (28°F) at 133 days.
A hard freeze (28°F) comes after May 13 in half of springs and before September 26 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Amber Lake in zone 4b in ZIP code 99683, 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 USC00500247; 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 Amber Lake?
In a normal year in Amber Lake, 1 day a year reaches 90°F and 210 nights fall to 32°F or colder.
- Days at 90°F or more
- 1a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 210a normal year
- Days that stay below freezing
- 101high of 32°F or less
Source: NOAA NCEI 1991-2020 annual normals, station USC00500247.
How sunny is it at Amber Lake?
Over a year 67% of the sunlight that would reach the ground under clear skies gets through the clouds at Amber Lake, 2.6 kWh per square metre a day. March is the sunniest month (75%) and October the cloudiest (57%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 62% | 0.2 |
| February | 63% | 0.9 |
| March | 75% | 2.5 |
| April | 75% | 4.2 |
| May | 69% | 5.0 |
| June | 67% | 5.5 |
| July | 64% | 4.8 |
| August | 63% | 3.7 |
| September | 61% | 2.3 |
| October | 57% | 1.0 |
| November | 59% | 0.3 |
| December | 64% | 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 Amber Lake record?
A normal year at Amber Lake brings 10,467 heating degree days, 95% more than the median U.S. place (5,373), and 16 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 768 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,564 | 0 |
| February | 1,259 | 0 |
| March | 1,237 | 0 |
| April | 840 | 0 |
| May | 544 | 0 |
| June | 252 | 8 |
| July | 176 | 7 |
| August | 274 | 1 |
| September | 540 | 0 |
| October | 964 | 0 |
| November | 1,329 | 0 |
| December | 1,490 | 0 |
| Year (annual) | 10,467 | 16 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00500247. 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 Amber Lake been warmer than normal?
2025 averaged 38.1°F, 1.8°F above the 1991-2020 normal of 36.3°F. 4 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 34.1°F | −2.2°F | 24.78 |
| 2022 | 37.7°F | +1.4°F | 43.72 |
| 2023 | 36.4°F | +0.1°F | 36.28 |
| 2024 | 37.0°F | +0.7°F | 32.89 |
| 2025 | 38.1°F | +1.8°F | 35.94 |
Source: observed years: ACIS, station USC00500247. A year counts only with all twelve months complete.
How does Amber Lake's climate compare?
Amber Lake is warmer than 48 of the 85 places with their own NOAA record in Alaska, and wetter than 48. Across the 7,247 U.S. stations with normals, its annual mean of 36.3°F is warmer than 2%.
In the Köppen classification computed from these normals, Amber Lake is Dfc: continental, no dry season, 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.
Which places near Amber Lake share this climate record?
Petersville has no NOAA station with 1991-2020 normals of its own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Petersville, AK42 people · 22 mi NW
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Amber Lake's climate
What is the coldest month at Amber Lake?
January, with a normal high of 22°F and a normal low of 7°F. The warmest is July (71°F by day, 48°F at night).
What is the rainiest month at Amber Lake?
September, with 5.74 in of precipitation in a normal year; the driest is March with 1.19 in.
What plant hardiness zone is Amber Lake in?
The USDA's 2023 map puts Amber Lake in zone 4b in ZIP code 99683, the nearest ZIP area.
How late can frost come at Amber Lake?
In half of years the last 32°F night comes after May 28; 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
- Talkeetna, AK16 miles from this station, 35.9°F a year
- Skwentna, AK27 miles from this station, 34.5°F a year
- Willow, AK34 miles from this station, 33.4°F a year
- Whites Crossing, AK37 miles from this station, 33.4°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made