Pontiac Weather in May
Average highs run from 69°F on May 1 to 78°F on May 31, and lows from 47°F to 57°F. Normal precipitation for the month is 4.43 in over about 12 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
- 74°F
- Average low
- 52°F
- Precipitation
- 4.43 in
- Record high
- 102°FMay 31, 1934
- Record low
- 24°FMay 10, 1966
- Chance of a freeze
- 12%
- Days of 90°F or more
- 1.1
- Daylight
- 13 h 58 min to 14 h 54 min
- Cloud cover
- 65%
- Humidity
- 76%
- Dew point
- 53°F
- Wind
- 10.7 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 | 69°F | 47°F | 89°F 2007 | 29°F 1907 | 39% | 0% |
| May 2 | 69°F | 47°F | 88°F 1959 | 28°F 1966 | 39% | 0% |
| May 3 | 70°F | 47°F | 91°F 1928 | 29°F 2005 | 39% | 0% |
| May 4 | 70°F | 48°F | 89°F 1959 | 29°F 2005 | 39% | 0% |
| May 5 | 70°F | 48°F | 90°F 1959 | 32°F 1910 | 39% | 0% |
| May 6 | 71°F | 49°F | 92°F 1934 | 30°F 1989 | 39% | 0% |
| May 7 | 71°F | 49°F | 89°F 1916 | 25°F 1989 | 39% | 0% |
| May 8 | 71°F | 49°F | 90°F 1963 | 35°F 1923 | 39% | 0% |
| May 9 | 72°F | 50°F | 94°F 1934 | 29°F 1966 | 39% | 0% |
| May 10 | 72°F | 50°F | 90°F 1934 | 24°F 1966 | 39% | 0% |
| May 11 | 72°F | 50°F | 91°F 2011 | 29°F 1907 | 39% | 0% |
| May 12 | 72°F | 51°F | 90°F 1956 | 32°F 1928 | 39% | 0% |
| May 13 | 73°F | 51°F | 89°F 1956 | 32°F 1938 | 39% | 0% |
| May 14 | 73°F | 51°F | 92°F 1932 | 33°F 1910 | 39% | 0% |
| May 15 | 73°F | 52°F | 90°F 1911 | 36°F 1920 | 39% | 0% |
| May 16 | 74°F | 52°F | 90°F 1962 | 34°F 1921 | 39% | 0% |
| May 17 | 74°F | 53°F | 93°F 1911 | 34°F 1997 | 39% | 0% |
| May 18 | 74°F | 53°F | 93°F 1911 | 34°F 1925 | 39% | 0% |
| May 19 | 75°F | 53°F | 94°F 1975 | 34°F 1929 | 39% | 0% |
| May 20 | 75°F | 54°F | 94°F 1996 | 35°F 1954 | 39% | 0% |
| May 21 | 75°F | 54°F | 93°F 1934 | 33°F 2002 | 39% | 0% |
| May 22 | 75°F | 54°F | 96°F 1925 | 37°F 2002 | 39% | 0% |
| May 23 | 76°F | 55°F | 94°F 1921 | 34°F 1917 | 38% | 0% |
| May 24 | 76°F | 55°F | 94°F 1921 | 37°F 1935 | 38% | 0% |
| May 25 | 76°F | 55°F | 95°F 1911 | 30°F 1925 | 38% | 0% |
| May 26 | 77°F | 56°F | 96°F 1911 | 35°F 1925 | 38% | 0% |
| May 27 | 77°F | 56°F | 95°F 1911 | 35°F 1992 | 38% | 0% |
| May 28 | 77°F | 56°F | 95°F 1911 | 38°F 1992 | 38% | 0% |
| May 29 | 78°F | 57°F | 98°F 1934 | 35°F 1965 | 38% | 0% |
| May 30 | 78°F | 57°F | 98°F 1934 | 37°F 1930 | 37% | 0% |
| May 31 | 78°F | 57°F | 102°F 1934 | 42°F 1966 | 37% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CDT).
- May 1
- sunrise 5:53 AM, sunset 7:51 PM
- May 31
- sunrise 5:25 AM, sunset 8:19 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00116910 (Pontiac), public domain. Records: NOAA GHCN-Daily, station USC00116910, 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 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.