St. Paul weather in May: St. Paul, Alaska: normal highs, lows, rain and records for May
St. Paul in May has a normal high of 41°F and a normal low of 32°F, a daily mean of 37°F, rising from 38°F on the 1st to 44°F by the 31st. Measurable precipitation falls on 12 days in a normal May, 1.02 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 5°C and low of 0°C, 26 mm of precipitation and 2 cm of snow in May.
- NOAA stationSaint Paul Island Airport
- Station IDUSW00025713
- Location57.16°N 170.22°W
- Elevation35 ft (11 m)
- From the center4 miles
- Population439
- Jan 29° 21°
- Feb 29° 21°
- Mar 30° 21°
- Apr 34° 26°
- May 41° 32°
- Jun 48° 39°
- Jul 52° 44°
- Aug 53° 46°
- Sep 50° 42°
- Oct 44° 35°
- Nov 38° 30°
- Dec 33° 25°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is St. Paul in May?
The normal high is 41°F and the normal low 32°F, for a daily mean of 36.6°F. May is 6.5°F warmer than April and 6.5°F cooler than June. May is the 6th warmest month of the year in St. Paul and the 12th wettest. Across the month the normal high rises 6°F, from 38°F on May 1 to 44°F on May 31. From one year to the next May's mean temperature typically moves about 2.7°F either way (NOAA's standard deviation), so roughly two Mays in three average between 34°F and 39°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 40%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| May 1 | 38°F | 30°F | 40% | 10% |
| May 8 | 39°F | 31°F | 40% | 11% |
| May 15 | 41°F | 32°F | 39% | 11% |
| May 22 | 42°F | 33°F | 39% | 11% |
| May 31 | 44°F | 35°F | 38% | 11% |
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 | 38°F | 30°F | 40% | 10% | 15 h 30 min |
| May 2 | 38°F | 30°F | 40% | 10% | 15 h 30 min |
| May 3 | 38°F | 30°F | 40% | 10% | 15 h 40 min |
| May 4 | 38°F | 31°F | 40% | 10% | 15 h 40 min |
| May 5 | 39°F | 31°F | 40% | 10% | 15 h 50 min |
| May 6 | 39°F | 31°F | 40% | 11% | 15 h 50 min |
| May 7 | 39°F | 31°F | 40% | 11% | 15 h 50 min |
| May 8 | 39°F | 31°F | 40% | 11% | 16 h |
| May 9 | 39°F | 31°F | 40% | 11% | 16 h |
| May 10 | 40°F | 32°F | 40% | 11% | 16 h 10 min |
| May 11 | 40°F | 32°F | 39% | 11% | 16 h 10 min |
| May 12 | 40°F | 32°F | 39% | 11% | 16 h 20 min |
| May 13 | 40°F | 32°F | 39% | 11% | 16 h 20 min |
| May 14 | 40°F | 32°F | 39% | 11% | 16 h 20 min |
| May 15 | 41°F | 32°F | 39% | 11% | 16 h 30 min |
| May 16 | 41°F | 32°F | 39% | 11% | 16 h 30 min |
| May 17 | 41°F | 33°F | 39% | 11% | 16 h 40 min |
| May 18 | 41°F | 33°F | 39% | 11% | 16 h 40 min |
| May 19 | 41°F | 33°F | 39% | 11% | 16 h 40 min |
| May 20 | 42°F | 33°F | 39% | 11% | 16 h 50 min |
| May 21 | 42°F | 33°F | 39% | 11% | 16 h 50 min |
| May 22 | 42°F | 33°F | 39% | 11% | 16 h 50 min |
| May 23 | 42°F | 33°F | 38% | 11% | 17 h |
| May 24 | 43°F | 34°F | 38% | 11% | 17 h |
| May 25 | 43°F | 34°F | 38% | 11% | 17 h |
| May 26 | 43°F | 34°F | 38% | 11% | 17 h 10 min |
| May 27 | 43°F | 34°F | 38% | 11% | 17 h 10 min |
| May 28 | 43°F | 34°F | 38% | 11% | 17 h 10 min |
| May 29 | 44°F | 35°F | 38% | 11% | 17 h 20 min |
| May 30 | 44°F | 35°F | 38% | 11% | 17 h 20 min |
| May 31 | 44°F | 35°F | 38% | 11% | 17 h 20 min |
- Normal high
- 41°FMay average
- Normal low
- 32°FMay average
- Precipitation
- 1.02 inmonth total
- Days with precipitation
- 120.01 inch or more
- Snowfall
- 0.8 inmonth total
- Nights at 32°F or colder
- 15
- Daylight
- 15 h 30 min to 17 h 20 minMay 1 to May 31
- Sunshine
- 56%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00025713; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in St. Paul in May?
On a given May day the chance of 0.01 inch or more is 39% on average, highest around May 1 (40%). In all, 1.02 in falls on 12 days of a normal May.
In a normal May in St. Paul, 15 nights fall to freezing, 2 days stay below freezing all day and snowfall averages 0.8 inches.
Snow falls on 2 days in a normal May, and an inch or more covers the ground on 4 days.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00025713.
How humid and windy is St. Paul in May?
At 3 p.m. the normal temperature is 43°F with 81% relative humidity and a dew point of 37°F; at 6 a.m. it is 37°F with 94% humidity. The wind averages 13.2 mph, most often from the northeast in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 37°F | 36°F | 94% | 11.7 mph | – |
| 9 a.m. | 39°F | 37°F | 92% | 13.2 mph | – |
| noon | 42°F | 37°F | 85% | 14.4 mph | – |
| 3 p.m. | 43°F | 37°F | 81% | 14.9 mph | – |
| 6 p.m. | 42°F | 37°F | 82% | 14.6 mph | – |
| 9 p.m. | 40°F | 37°F | 88% | 13.4 mph | – |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00025713. 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 St. Paul?
The warmest May temperature on this station's record (since 1892) is 59°F, on May 28, 1997; the coldest is 8°F, on May 5, 1971. The wettest May brought 3.11 in (1931); the snowiest, 12.7 inches (1971).
The May mean against the 1991-2020 normal of 36.6°F: 2022 35.3°F (−1.3), 2023 35.7°F (−0.9), 2024 34.7°F (−1.9), 2025 36.1°F (−0.5), 2026 34.6°F (−2.0). 0 of 5 ran warmer than normal.
| May | Mean | Against normal | Precip. |
|---|---|---|---|
| 2022 | 35.3°F | −1.3°F | 0.06 in |
| 2023 | 35.7°F | −0.9°F | 0.78 in |
| 2024 | 34.7°F | −1.9°F | 1.60 in |
| 2025 | 36.1°F | −0.5°F | 1.71 in |
| 2026 | 34.6°F | −2.0°F | 0.66 in |
Source: records: ACIS, station USW00025713; recent months: ACIS, station USW00025713. Records and recent months use complete months only.
How does May in St. Paul 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; St. Paul's is 41°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.