Gilmore Creek, Alaska climate: Climate normals at a NOAA weather station
Gilmore Creek's normal year runs from −12°F January nights to 72°F July afternoons, with 15.4 inches of precipitation and 53 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of −2.0°C, January lows of −24°C, July highs of 22°C, 390 mm of precipitation a year.
- NOAA stationGilmore Creek
- Station IDUSC00503275
- Location64.98°N 147.52°W
- Elevation945 ft (288 m)
On October 23, the normal high in Gilmore Creek is 30°F and the normal low 11°F, and the chance of measurable rain or snow is 28%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Gilmore Creek.
- Jan 5° -12°
- Feb 17° -6°
- Mar 28° -1°
- Apr 46° 19°
- May 61° 33°
- Jun 71° 43°
- Jul 72° 47°
- Aug 66° 43°
- Sep 55° 32°
- Oct 36° 16°
- Nov 14° -2°
- Dec 8° -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 Gilmore Creek each month?
July is the warmest month, with normal highs of 72°F; January the coldest, with normal lows of −12°F. The most precipitation falls in August (3.18 in), the least in April (0.33 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 5°F | −12°F | -3.5°F | 0.68 | 7.1 | 6 | <1 | 31 | 5 h |
| February | 17°F | −6°F | 5.2°F | 0.43 | 6.1 | 5 | <1 | 28 | 8 h 20 min |
| March | 28°F | −1°F | 13.7°F | 0.59 | 6.3 | 5 | <1 | 31 | 11 h 30 min |
| April | 46°F | 19°F | 32.3°F | 0.33 | 2.5 | 3 | <1 | 29 | 15 h |
| May | 61°F | 33°F | 47.0°F | 1.00 | 0.3 | 8 | <1 | 16 | 18 h 40 min |
| June | 71°F | 43°F | 57.3°F | 2.27 | 0.0 | 12 | <1 | 1 | 21 h 50 min |
| July | 72°F | 47°F | 59.6°F | 2.67 | 0.0 | 15 | <1 | <1 | 20 h 20 min |
| August | 66°F | 43°F | 54.4°F | 3.18 | 0.0 | 17 | <1 | 3 | 16 h 40 min |
| September | 55°F | 32°F | 43.7°F | 1.86 | 1.8 | 13 | <1 | 15 | 13 h 10 min |
| October | 36°F | 16°F | 25.8°F | 0.85 | 7.3 | 9 | <1 | 30 | 9 h 50 min |
| November | 14°F | −2°F | 6.0°F | 0.90 | 11.8 | 8 | <1 | 30 | 6 h 20 min |
| December | 8°F | −9°F | -0.6°F | 0.61 | 9.9 | 7 | <1 | 31 | 3 h 50 min |
| Year (annual) | 40°F | 17°F | 28.4°F | 15.37 | 53.1 | 107 | <1 | 244 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | −15°C | −24°C | −19.7°C | 17 mm | 18 cm |
| February | −9°C | −21°C | −14.9°C | 11 mm | 15 cm |
| March | −2°C | −18°C | −10.2°C | 15 mm | 16 cm |
| April | 8°C | −7°C | 0.2°C | 8 mm | 6 cm |
| May | 16°C | 0°C | 8.3°C | 25 mm | 1 cm |
| June | 22°C | 6°C | 14.1°C | 58 mm | 0 cm |
| July | 22°C | 8°C | 15.3°C | 68 mm | 0 cm |
| August | 19°C | 6°C | 12.4°C | 81 mm | 0 cm |
| September | 13°C | 0°C | 6.5°C | 47 mm | 5 cm |
| October | 2°C | −9°C | −3.4°C | 22 mm | 19 cm |
| November | −10°C | −19°C | −14.4°C | 23 mm | 30 cm |
| December | −13°C | −23°C | −18.1°C | 15 mm | 25 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00503275; 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 Gilmore Creek?
Normal highs sit between 65°F and 85°F in June, July and August. Of those, June has the fewest days with rain (12).
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 USC00503275.
When is the last frost at Gilmore Creek?
In Gilmore Creek, the last spring frost (32°F) comes after June 1 in half of years and after June 17 in one year in ten; the first autumn frost comes before August 28 in half of years and before August 13 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 17; 9 in 10 after May 18
- First autumn frost, half of years before
- August 281 year in 10 before August 13; 9 in 10 before September 11
NOAA puts the median frost-free season at 87 days, and the season without a hard freeze (28°F) at 111 days.
A hard freeze (28°F) comes after May 18 in half of springs and before September 7 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Gilmore Creek in zone 2a in ZIP code 99703, 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 2b: the coldest night of a typical year reaches −43°F (16 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 USC00503275; 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 Gilmore Creek?
In a normal year in Gilmore Creek, a 90°F day is rare, 244 nights fall to 32°F or colder and 107 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
- 244a normal year
- Days that stay below freezing
- 142high of 32°F or less
- Days with 0.01 inch of precipitation
- 107a normal year
- Days with 1 inch of snow or more
- 21a normal year
The highest temperature in this station's record (since 1962) is 92°F, on June 16, 1969; the lowest is −55°F, on January 6, 1975.
The wettest calendar year on that record is 1972, with 22.67 in; the snowiest season is 1970–71, with 107.5 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00503275; records: ACIS (NOAA Regional Climate Centers), station USC00503275. Records use complete months only; a month missing more than three days is left out.
How sunny is it at Gilmore Creek?
Over a year 71% of the sunlight that would reach the ground under clear skies gets through the clouds at Gilmore Creek, 2.6 kWh per square metre a day. March is the sunniest month (84%) and October the cloudiest (62%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 75% | 0.2 |
| February | 75% | 0.8 |
| March | 84% | 2.6 |
| April | 83% | 4.4 |
| May | 73% | 5.2 |
| June | 69% | 5.4 |
| July | 66% | 4.8 |
| August | 67% | 3.7 |
| September | 67% | 2.3 |
| October | 62% | 1.0 |
| November | 63% | 0.3 |
| December | 79% | 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 Gilmore Creek record?
A normal year at Gilmore Creek brings 13,330 heating degree days, 2.5 times the median U.S. place (5,373), and 20 cooling degree days, 98% fewer than the median (908). Ten months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 755 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 2,123 | 0 |
| February | 1,674 | 0 |
| March | 1,590 | 0 |
| April | 981 | 0 |
| May | 558 | 0 |
| June | 239 | 8 |
| July | 176 | 10 |
| August | 331 | 2 |
| September | 639 | 0 |
| October | 1,215 | 0 |
| November | 1,771 | 0 |
| December | 2,032 | 0 |
| Year (annual) | 13,330 | 20 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00503275. 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 Gilmore Creek been warmer than normal?
2025 averaged 30.2°F, 1.8°F above the 1991-2020 normal of 28.4°F. 3 of the 4 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 26.6°F | −1.8°F | 21.03 | 109.2 |
| 2023 | 28.8°F | +0.4°F | 14.92 | – |
| 2024 | 28.6°F | +0.2°F | 19.14 | 61.2 |
| 2025 | 30.2°F | +1.8°F | 19.33 | 61.4 |
Source: observed years: ACIS, station USC00503275. A year counts only with all twelve months complete.
How does Gilmore Creek's climate compare?
Gilmore Creek is warmer than 29 of the 85 places with their own NOAA record in Alaska, and wetter than 22. Across the 7,247 U.S. stations with normals, its annual mean of 28.4°F is warmer than 1%.
In the Köppen classification computed from these normals, Gilmore Creek 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 Gilmore Creek share this climate record?
Steele Creek 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.
- Steele Creek, AK5,861 people · 4 mi SE
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 Gilmore Creek's climate
What is the coldest month at Gilmore Creek?
January, with a normal high of 5°F and a normal low of −12°F. The warmest is July (72°F by day, 47°F at night).
Does it snow at Gilmore Creek?
Yes: 53 inches in a normal year, falling on 44 days with 0.1 inch or more, the most in November (11.8 inches).
What is the rainiest month at Gilmore Creek?
August, with 3.18 in of precipitation in a normal year; the driest is April with 0.33 in.
What plant hardiness zone is Gilmore Creek in?
The USDA's 2023 map puts Gilmore Creek in zone 2a in ZIP code 99703, the nearest ZIP area. By the same method at the station, the coldest night of a typical year reaches −43°F (16 years, 1991-2020): zone 2b.
How late can frost come at Gilmore Creek?
In half of years the last 32°F night comes after June 1; in one year in ten it comes after June 17. Waiting until June 17 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Alaska climateThe statewide normals and every place in the state
- Fox, AK3 miles from this station, 27.8°F a year
- Fort Knox Mine, AK6 miles from this station, 30.5°F a year
- Aurora, AK10 miles from this station, 28.5°F a year
- Goldstream, AK12 miles from this station, 24.3°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made