Petersburg Weather in May
Average highs run from 52°F on May 1 to 59°F on May 31, and lows from 38°F to 46°F. Normal precipitation for the month is 5.86 in over about 16 wet days.
May day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
May at a glance
- Average high
- 55°F
- Average low
- 42°F
- Precipitation
- 5.86 in
- Snowfall
- 0.2 in
- Record high
- 79°FMay 26, 1995
- Record low
- 21°FMay 2, 1956
- Chance of a freeze
- 44%
- Daylight
- 15 h 31 min to 17 h 22 min
- Cloud cover
- 70%
- Humidity
- 84%
- Dew point
- 37°F
- Wind
- 5.6 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| May 1 | 52°F | 38°F | 68°F 1989 | 25°F 1954 | 57% | 1% |
| May 2 | 52°F | 38°F | 69°F 2009 | 21°F 1956 | 56% | 1% |
| May 3 | 52°F | 39°F | 67°F 2014 | 22°F 1956 | 56% | 1% |
| May 4 | 52°F | 39°F | 72°F 1946 | 25°F 1956 | 55% | 1% |
| May 5 | 53°F | 39°F | 70°F 1946 | 26°F 1956 | 55% | 1% |
| May 6 | 53°F | 39°F | 69°F 1937 | 24°F 2002 | 55% | 1% |
| May 7 | 53°F | 39°F | 71°F 1995 | 25°F 1996 | 54% | 1% |
| May 8 | 53°F | 40°F | 71°F 1946 | 22°F 1967 | 54% | 1% |
| May 9 | 54°F | 40°F | 75°F 1995 | 27°F 1967 | 54% | 1% |
| May 10 | 54°F | 40°F | 73°F 1995 | 27°F 1966 | 54% | 1% |
| May 11 | 54°F | 40°F | 75°F 1942 | 27°F 1996 | 53% | 0% |
| May 12 | 54°F | 41°F | 74°F 1942 | 27°F 1964 | 53% | 0% |
| May 13 | 55°F | 41°F | 74°F 1942 | 26°F 1964 | 53% | 0% |
| May 14 | 55°F | 41°F | 75°F 2016 | 31°F 1965 | 53% | 0% |
| May 15 | 55°F | 41°F | 72°F 1973 | 29°F 1950 | 53% | 0% |
| May 16 | 55°F | 42°F | 69°F 2014 | 30°F 1971 | 53% | 0% |
| May 17 | 56°F | 42°F | 69°F 2014 | 29°F 1938 | 53% | 0% |
| May 18 | 56°F | 42°F | 73°F 1963 | 28°F 1989 | 53% | 0% |
| May 19 | 56°F | 43°F | 72°F 1945 | 29°F 1992 | 52% | 0% |
| May 20 | 56°F | 43°F | 75°F 2002 | 30°F 1974 | 52% | 0% |
| May 21 | 57°F | 43°F | 71°F 2004 | 32°F 1939 | 52% | 0% |
| May 22 | 57°F | 43°F | 77°F 1938 | 31°F 1950 | 52% | 0% |
| May 23 | 57°F | 44°F | 76°F 1946 | 31°F 1933 | 52% | 0% |
| May 24 | 57°F | 44°F | 73°F 1946 | 29°F 1967 | 52% | 0% |
| May 25 | 57°F | 44°F | 75°F 1947 | 30°F 1974 | 52% | 0% |
| May 26 | 58°F | 44°F | 79°F 1995 | 30°F 1966 | 52% | 0% |
| May 27 | 58°F | 45°F | 79°F 1995 | 31°F 1930 | 53% | 0% |
| May 28 | 58°F | 45°F | 78°F 1945 | 32°F 1930 | 53% | 0% |
| May 29 | 58°F | 45°F | 74°F 1981 | 31°F 1956 | 53% | 0% |
| May 30 | 58°F | 45°F | 77°F 1941 | 32°F 1930 | 53% | 0% |
| May 31 | 59°F | 46°F | 75°F 1940 | 31°F 2002 | 53% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (AKDT).
- May 1
- sunrise 5:04 AM, sunset 8:35 PM
- May 31
- sunrise 4:09 AM, sunset 9:31 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00025329 (Petersburg 1), public domain. Records: NOAA GHCN-Daily, station USW00025329, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.