King Salmon weather in May: King Salmon, Alaska: normal highs, lows, rain and records for May
King Salmon in May has a normal high of 55°F and a normal low of 36°F, a daily mean of 46°F, rising from 52°F on the 1st to 59°F by the 31st. Measurable precipitation falls on 12 days in a normal May, 1.44 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 13°C and low of 2°C, 37 mm of precipitation and 2 cm of snow in May.
- NOAA stationKing Salmon Airport
- Station IDUSW00025503
- Location58.68°N 156.63°W
- Elevation63 ft (19 m)
- Population (census place)354
- Jan 24° 10°
- Feb 30° 15°
- Mar 32° 15°
- Apr 45° 28°
- May 55° 36°
- Jun 62° 44°
- Jul 65° 49°
- Aug 63° 48°
- Sep 56° 41°
- Oct 44° 29°
- Nov 32° 18°
- Dec 26° 11°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is King Salmon in May?
The normal high is 55°F and the normal low 36°F, for a daily mean of 45.6°F. May is 9.6°F warmer than April and 7.2°F cooler than June. May is the 5th warmest month of the year in King Salmon and the 7th wettest. Across the month the normal high rises 7°F, from 52°F on May 1 to 59°F on May 31. From one year to the next May's mean temperature typically moves about 2.4°F either way (NOAA's standard deviation), so roughly two Mays in three average between 43°F and 48°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 44%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| May 1 | 52°F | 34°F | 38% | 15% |
| May 8 | 54°F | 35°F | 39% | 15% |
| May 15 | 55°F | 36°F | 40% | 15% |
| May 22 | 56°F | 37°F | 41% | 16% |
| May 31 | 59°F | 39°F | 44% | 17% |
Every day of May: normal high, low and chance of precipitation (warmest afternoon May 31, coldest night May 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| May 1 | 52°F | 34°F | 38% | 15% | 15 h 40 min |
| May 2 | 52°F | 34°F | 38% | 15% | 15 h 50 min |
| May 3 | 52°F | 34°F | 38% | 15% | 15 h 50 min |
| May 4 | 53°F | 35°F | 38% | 15% | 16 h |
| May 5 | 53°F | 35°F | 38% | 15% | 16 h |
| May 6 | 53°F | 35°F | 38% | 15% | 16 h 10 min |
| May 7 | 53°F | 35°F | 39% | 15% | 16 h 10 min |
| May 8 | 54°F | 35°F | 39% | 15% | 16 h 10 min |
| May 9 | 54°F | 35°F | 39% | 15% | 16 h 20 min |
| May 10 | 54°F | 35°F | 39% | 15% | 16 h 20 min |
| May 11 | 54°F | 35°F | 39% | 15% | 16 h 30 min |
| May 12 | 55°F | 36°F | 39% | 15% | 16 h 30 min |
| May 13 | 55°F | 36°F | 39% | 15% | 16 h 40 min |
| May 14 | 55°F | 36°F | 39% | 15% | 16 h 40 min |
| May 15 | 55°F | 36°F | 40% | 15% | 16 h 50 min |
| May 16 | 55°F | 36°F | 40% | 16% | 16 h 50 min |
| May 17 | 55°F | 36°F | 40% | 16% | 17 h |
| May 18 | 56°F | 36°F | 40% | 16% | 17 h |
| May 19 | 56°F | 36°F | 41% | 16% | 17 h |
| May 20 | 56°F | 37°F | 41% | 16% | 17 h 10 min |
| May 21 | 56°F | 37°F | 41% | 16% | 17 h 10 min |
| May 22 | 56°F | 37°F | 41% | 16% | 17 h 20 min |
| May 23 | 57°F | 37°F | 42% | 16% | 17 h 20 min |
| May 24 | 57°F | 37°F | 42% | 16% | 17 h 20 min |
| May 25 | 57°F | 37°F | 42% | 16% | 17 h 30 min |
| May 26 | 57°F | 38°F | 42% | 17% | 17 h 30 min |
| May 27 | 58°F | 38°F | 43% | 17% | 17 h 30 min |
| May 28 | 58°F | 38°F | 43% | 17% | 17 h 40 min |
| May 29 | 58°F | 38°F | 43% | 17% | 17 h 40 min |
| May 30 | 58°F | 38°F | 43% | 17% | 17 h 40 min |
| May 31 | 59°F | 39°F | 44% | 17% | 17 h 50 min |
- Normal high
- 55°FMay average
- Normal low
- 36°FMay average
- Precipitation
- 1.44 inmonth total
- Days with precipitation
- 120.01 inch or more
- Snowfall
- 0.6 inmonth total
- Nights at 32°F or colder
- 10
- Daylight
- 15 h 40 min to 17 h 50 minMay 1 to May 31
- Days at 70°F or more
- 2
- Sunshine
- 66%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00025503; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in King Salmon in May?
On a given May day the chance of 0.01 inch or more is 40% on average, highest around May 31 (44%). In all, 1.44 in falls on 12 days of a normal May.
In a normal May in King Salmon, 10 nights fall to freezing and snowfall averages 0.6 inches.
Snow falls on 1 day in a normal May.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00025503.
How humid and windy is King Salmon in May?
At 3 p.m. the normal temperature is 58°F with 49% relative humidity and a dew point of 39°F; at 6 a.m. it is 42°F with 86% humidity. The wind averages 9.5 mph, most often from the south-southeast in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 42°F | 38°F | 86% | 6.7 mph | – |
| 9 a.m. | 49°F | 40°F | 69% | 9.0 mph | 14% |
| noon | 55°F | 39°F | 54% | 10.6 mph | 16% |
| 3 p.m. | 58°F | 39°F | 49% | 11.9 mph | 11% |
| 6 p.m. | 56°F | 40°F | 53% | 12.0 mph | – |
| 9 p.m. | 52°F | 40°F | 64% | 10.3 mph | 9% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00025503. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for May in King Salmon?
The warmest May temperature on King Salmon's official record (since 1917) is 85°F, on May 26, 2006; the coldest is 4°F, on May 4, 1945. The wettest May brought 3.32 in (2015); the snowiest, 6.1 inches (1985).
The May mean against the 1991-2020 normal of 45.6°F: 2021 44.3°F (−1.3), 2022 46.3°F (+0.7), 2023 44.5°F (−1.1), 2024 41.4°F (−4.2), 2025 43.4°F (−2.2). 1 of 5 ran warmer than normal.
| May | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 44.3°F | −1.3°F | 1.35 in |
| 2022 | 46.3°F | +0.7°F | 0.51 in |
| 2023 | 44.5°F | −1.1°F | 3.03 in |
| 2024 | 41.4°F | −4.2°F | 2.05 in |
| 2025 | 43.4°F | −2.2°F | 1.98 in |
Source: records: ACIS, NWS threaded record AKNthr; recent months: ACIS, station USW00025503. Records and recent months use complete months only.
How does May in King Salmon compare across Alaska?
Across the 85 places PlainClimate covers in Alaska, May normal highs run from 27°F in Utqiaġvik to 65°F in Two Rivers; King Salmon's is 55°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.