Sitka weather in May: Sitka, Alaska: normal highs, lows, rain and records for May
Sitka in May has a normal high of 53°F and a normal low of 43°F, a daily mean of 48°F, rising from 51°F on the 1st to 56°F by the 31st. Measurable precipitation falls on 16 days in a normal May, 3.81 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 12°C and low of 6°C, 97 mm of precipitation in May.
- NOAA stationSitka Airport
- Station IDUSW00025333
- Location57.05°N 135.36°W
- Elevation14 ft (4 m)
- Population8,355
- Jan 41° 32°
- Feb 41° 32°
- Mar 43° 33°
- Apr 48° 37°
- May 53° 43°
- Jun 58° 48°
- Jul 60° 53°
- Aug 62° 53°
- Sep 58° 49°
- Oct 51° 42°
- Nov 44° 36°
- Dec 42° 33°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Sitka in May?
The normal high is 53°F and the normal low 43°F, for a daily mean of 48.1°F. May is 5.5°F warmer than April and 4.9°F cooler than June. May is the 5th warmest month of the year in Sitka and the 11th wettest. Across the month the normal high rises 5°F, from 51°F on May 1 to 56°F on May 31. From one year to the next May's mean temperature typically moves about 2.2°F either way (NOAA's standard deviation), so roughly two Mays in three average between 46°F and 50°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 56%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| May 1 | 51°F | 40°F | 56% | 34% |
| May 8 | 52°F | 42°F | 54% | 33% |
| May 15 | 53°F | 43°F | 54% | 31% |
| May 22 | 54°F | 44°F | 54% | 30% |
| May 31 | 56°F | 46°F | 55% | 29% |
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 | 51°F | 40°F | 56% | 34% | 15 h 30 min |
| May 2 | 51°F | 40°F | 55% | 34% | 15 h 30 min |
| May 3 | 51°F | 41°F | 55% | 34% | 15 h 40 min |
| May 4 | 51°F | 41°F | 55% | 33% | 15 h 40 min |
| May 5 | 52°F | 41°F | 55% | 33% | 15 h 40 min |
| May 6 | 52°F | 41°F | 54% | 33% | 15 h 50 min |
| May 7 | 52°F | 41°F | 54% | 33% | 15 h 50 min |
| May 8 | 52°F | 42°F | 54% | 33% | 16 h |
| May 9 | 52°F | 42°F | 54% | 32% | 16 h |
| May 10 | 52°F | 42°F | 54% | 32% | 16 h 10 min |
| May 11 | 53°F | 42°F | 54% | 32% | 16 h 10 min |
| May 12 | 53°F | 42°F | 54% | 32% | 16 h 10 min |
| May 13 | 53°F | 43°F | 54% | 32% | 16 h 20 min |
| May 14 | 53°F | 43°F | 54% | 31% | 16 h 20 min |
| May 15 | 53°F | 43°F | 54% | 31% | 16 h 30 min |
| May 16 | 53°F | 43°F | 54% | 31% | 16 h 30 min |
| May 17 | 53°F | 43°F | 54% | 31% | 16 h 30 min |
| May 18 | 54°F | 43°F | 54% | 31% | 16 h 40 min |
| May 19 | 54°F | 44°F | 54% | 30% | 16 h 40 min |
| May 20 | 54°F | 44°F | 54% | 30% | 16 h 50 min |
| May 21 | 54°F | 44°F | 54% | 30% | 16 h 50 min |
| May 22 | 54°F | 44°F | 54% | 30% | 16 h 50 min |
| May 23 | 54°F | 44°F | 54% | 30% | 17 h |
| May 24 | 55°F | 45°F | 54% | 30% | 17 h |
| May 25 | 55°F | 45°F | 54% | 30% | 17 h |
| May 26 | 55°F | 45°F | 54% | 29% | 17 h 10 min |
| May 27 | 55°F | 45°F | 54% | 29% | 17 h 10 min |
| May 28 | 55°F | 45°F | 55% | 29% | 17 h 10 min |
| May 29 | 55°F | 45°F | 55% | 29% | 17 h 20 min |
| May 30 | 56°F | 46°F | 55% | 29% | 17 h 20 min |
| May 31 | 56°F | 46°F | 55% | 29% | 17 h 20 min |
- Normal high
- 53°FMay average
- Normal low
- 43°FMay average
- Precipitation
- 3.81 inmonth total
- Days with precipitation
- 160.01 inch or more
- Daylight
- 15 h 30 min to 17 h 20 minMay 1 to May 31
- Days at 70°F or more
- 1
- Sunshine
- 60%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00025333; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Sitka in May?
On a given May day the chance of 0.01 inch or more is 54% on average, highest around May 1 (56%). In all, 3.81 in falls on 16 days of a normal May, 1 of them with an inch or more.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00025333.
How humid and windy is Sitka in May?
At 3 p.m. the normal temperature is 53°F with 75% relative humidity and a dew point of 45°F; at 6 a.m. it is 49°F with 86% humidity. The wind averages 6.8 mph, most often from the west-southwest in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 49°F | 45°F | 86% | 4.7 mph | – |
| 9 a.m. | 51°F | 45°F | 78% | 6.5 mph | – |
| noon | 53°F | 45°F | 75% | 8.6 mph | – |
| 3 p.m. | 53°F | 45°F | 75% | 9.1 mph | – |
| 6 p.m. | 52°F | 45°F | 76% | 8.2 mph | – |
| 9 p.m. | 50°F | 45°F | 82% | 6.6 mph | – |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00025333. 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 Sitka?
The warmest May temperature on this station's record (since 1944) is 82°F, on May 21, 1963; the coldest is 29°F, on May 5, 1965. The wettest May brought 10.04 in (1982); the snowiest, 2.5 inches (1949).
The May mean against the 1991-2020 normal of 48.1°F: 2021 47.7°F (−0.4), 2022 48.2°F (+0.1), 2023 50.1°F (+2.0), 2024 47.9°F (−0.2), 2026 47.8°F (−0.3). 2 of 5 ran warmer than normal.
| May | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 47.7°F | −0.4°F | 5.10 in |
| 2022 | 48.2°F | +0.1°F | 2.29 in |
| 2023 | 50.1°F | +2.0°F | 5.38 in |
| 2024 | 47.9°F | −0.2°F | 6.30 in |
| 2026 | 47.8°F | −0.3°F | 6.16 in |
Source: records: ACIS, station USW00025333; recent months: ACIS, station USW00025333. Records and recent months use complete months only.
How does May in Sitka 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; Sitka's is 53°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.