Whitestone, Alaska climate: Normal weather by month, frost dates and records
Whitestone's normal year runs from −11°F January nights to 74°F July afternoons, with 12.7 inches of precipitation and 42 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of −1.3°C, January lows of −24°C, July highs of 23°C, 322 mm of precipitation a year.
- NOAA stationWhitestone Farms
- Station IDUSC00509793
- Location64.15°N 145.89°W
- Elevation995 ft (303 m)
- Population (census place)16
On October 14, the normal high in Whitestone is 36°F and the normal low 20°F, and the chance of measurable rain or snow is 32%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Whitestone.
- Jan 6° -11°
- Feb 16° -4°
- Mar 27° 1°
- Apr 48° 21°
- May 63° 34°
- Jun 73° 45°
- Jul 74° 49°
- Aug 67° 44°
- Sep 56° 35°
- Oct 34° 18°
- Nov 15° -1°
- Dec 10° -8°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Whitestone each month?
July is the warmest month, with normal highs of 74°F; January the coldest, with normal lows of −11°F. The most precipitation falls in July (2.75 in), the least in April (0.24 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 6°F | −11°F | -2.4°F | 0.44 | 5.7 | 8 | <1 | 31 | 5 h 20 min |
| February | 16°F | −4°F | 5.9°F | 0.32 | 5.0 | 6 | <1 | 28 | 8 h 30 min |
| March | 27°F | 1°F | 14.2°F | 0.33 | 3.7 | 6 | <1 | 30 | 11 h 40 min |
| April | 48°F | 21°F | 34.5°F | 0.24 | 1.6 | 4 | <1 | 27 | 15 h |
| May | 63°F | 34°F | 48.5°F | 0.84 | 1.1 | 8 | <1 | 13 | 18 h 20 min |
| June | 73°F | 45°F | 58.8°F | 2.51 | 0.0 | 13 | <1 | 1 | 21 h |
| July | 74°F | 49°F | 61.4°F | 2.75 | 0.0 | 15 | <1 | <1 | 19 h 50 min |
| August | 67°F | 44°F | 55.3°F | 2.13 | 0.0 | 15 | <1 | 2 | 16 h 30 min |
| September | 56°F | 35°F | 45.1°F | 1.16 | 1.7 | 11 | <1 | 13 | 13 h 10 min |
| October | 34°F | 18°F | 26.2°F | 0.80 | 7.3 | 10 | <1 | 27 | 10 h |
| November | 15°F | −1°F | 7.1°F | 0.66 | 8.7 | 9 | <1 | 30 | 6 h 40 min |
| December | 10°F | −8°F | 0.8°F | 0.51 | 6.7 | 8 | <1 | 31 | 4 h 10 min |
| Year (annual) | 41°F | 19°F | 29.6°F | 12.69 | 41.5 | 113 | <1 | 232 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | −14°C | −24°C | −19.1°C | 11 mm | 14 cm |
| February | −9°C | −20°C | −14.5°C | 8 mm | 13 cm |
| March | −3°C | −17°C | −9.9°C | 8 mm | 9 cm |
| April | 9°C | −6°C | 1.4°C | 6 mm | 4 cm |
| May | 17°C | 1°C | 9.2°C | 21 mm | 3 cm |
| June | 23°C | 7°C | 14.9°C | 64 mm | 0 cm |
| July | 23°C | 10°C | 16.3°C | 70 mm | 0 cm |
| August | 19°C | 7°C | 12.9°C | 54 mm | 0 cm |
| September | 13°C | 1°C | 7.3°C | 29 mm | 4 cm |
| October | 1°C | −8°C | −3.2°C | 20 mm | 19 cm |
| November | −9°C | −18°C | −13.8°C | 17 mm | 22 cm |
| December | −12°C | −22°C | −17.3°C | 13 mm | 17 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00509793; 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.
When is the best weather to visit Whitestone?
Normal highs sit between 65°F and 85°F in June, July and August. Of those, June has the fewest days with rain (13).
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 USC00509793.
When is the last frost in Whitestone?
In Whitestone, the last spring frost (32°F) comes after May 26 in half of years and after June 9 in one year in ten; the first autumn frost comes before September 2 in half of years and before August 19 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 261 year in 10 after June 9; 9 in 10 after May 14
- First autumn frost, half of years before
- September 21 year in 10 before August 19; 9 in 10 before September 18
NOAA puts the median frost-free season at 98 days, and the season without a hard freeze (28°F) at 123 days.
A hard freeze (28°F) comes after May 15 in half of springs and before September 16 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 USC00509793. 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 in Whitestone?
In a normal year in Whitestone, a 90°F day is rare, 232 nights fall to 32°F or colder and 113 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
- 232a normal year
- Days that stay below freezing
- 144high of 32°F or less
- Days with 0.01 inch of precipitation
- 113a normal year
- Days with 1 inch of snow or more
- 15a normal year
Source: NOAA NCEI 1991-2020 annual normals, station USC00509793.
How sunny is Whitestone?
Over a year 70% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Whitestone, 2.5 kWh per square metre a day. March is the sunniest month (85%) and October the cloudiest (62%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 76% | 0.2 |
| February | 77% | 0.9 |
| March | 85% | 2.6 |
| April | 83% | 4.5 |
| May | 70% | 5.0 |
| June | 65% | 5.2 |
| July | 63% | 4.6 |
| August | 65% | 3.6 |
| September | 66% | 2.3 |
| October | 62% | 1.0 |
| November | 65% | 0.3 |
| December | 81% | 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 much heating and cooling does Whitestone need?
A normal year in Whitestone brings 12,900 heating degree days, 2.4 times the median U.S. place (5,373), and 31 cooling degree days, 97% 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 893 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 2,091 | 0 |
| February | 1,654 | 0 |
| March | 1,573 | 0 |
| April | 915 | 0 |
| May | 510 | 0 |
| June | 198 | 12 |
| July | 129 | 18 |
| August | 301 | 1 |
| September | 599 | 0 |
| October | 1,204 | 0 |
| November | 1,738 | 0 |
| December | 1,989 | 0 |
| Year (annual) | 12,900 | 31 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00509793. 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.
Has Whitestone been warmer than normal lately?
2025 averaged 31.3°F, 1.7°F above the 1991-2020 normal of 29.6°F. 4 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 28.1°F | −1.5°F | 17.27 | 82.9 |
| 2022 | 30.3°F | +0.7°F | 11.05 | 66.2 |
| 2023 | 30.3°F | +0.7°F | 12.06 | 56.6 |
| 2024 | 30.8°F | +1.2°F | 14.24 | 34.3 |
| 2025 | 31.3°F | +1.7°F | 13.99 | 44.5 |
Source: observed years: ACIS, station USC00509793. A year counts only with all twelve months complete.
How does Whitestone's climate compare?
Whitestone is warmer than 32 of the other 84 places with their own NOAA record in Alaska, and wetter than 14. Across the 7,247 U.S. stations with normals, its annual mean of 29.6°F is warmer than 1%.
In the Köppen classification computed from these normals, Whitestone 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.
Which places near Whitestone share this climate record?
Harding-Birch Lakes 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.
- Harding-Birch Lakes, AK206 people · 25 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 Whitestone's climate
What is the coldest month in Whitestone?
January, with a normal high of 6°F and a normal low of −11°F. The warmest is July (74°F by day, 49°F at night).
Does it snow in Whitestone?
Yes: 42 inches in a normal year, falling on 49 days with 0.1 inch or more, the most in November (8.7 inches).
What is the rainiest month in Whitestone?
July, with 2.75 in of precipitation in a normal year; the driest is April with 0.24 in.
How late can frost come in Whitestone?
In half of years the last 32°F night comes after May 26; 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
- Delta (6 mi N), AK5 miles from this station, 25.9°F a year
- Delta (5 mi NE), AK9 miles from this station, 27.4°F a year
- Delta Junction, AK12 miles from this station, 30.0°F a year
- Eielson Field, AK50 miles from this station, 26.9°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made