Petrolia Weather in May
Average highs run from 79°F on May 1 to 88°F on May 31, and lows from 53°F to 64°F. Normal precipitation for the month is 4.69 in over about 7 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
- 83°F
- Average low
- 59°F
- Precipitation
- 4.69 in
- Record high
- 110°FMay 23, 2000
- Record low
- 35°FMay 1, 2014
- Chance of a freeze
- 0%
- Days of 90°F or more
- 6.8
- Daylight
- 13 h 33 min to 14 h 16 min
- Cloud cover
- 56%
- Humidity
- 67%
- Dew point
- 59°F
- Wind
- 11.0 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 | 79°F | 53°F | 99°F 1948 | 35°F 2014 | 22% | 0% |
| May 2 | 79°F | 54°F | 98°F 2020 | 38°F 2013 | 22% | 0% |
| May 3 | 79°F | 54°F | 99°F 2020 | 36°F 1954 | 22% | 0% |
| May 4 | 79°F | 54°F | 103°F 2020 | 37°F 1907 | 22% | 0% |
| May 5 | 80°F | 55°F | 102°F 2014 | 39°F 1979 | 22% | 0% |
| May 6 | 80°F | 55°F | 97°F 2014 | 42°F 1935 | 22% | 0% |
| May 7 | 80°F | 56°F | 101°F 2000 | 40°F 1960 | 22% | 0% |
| May 8 | 81°F | 56°F | 103°F 2011 | 40°F 1938 | 22% | 0% |
| May 9 | 81°F | 56°F | 99°F 1933 | 42°F 2020 | 22% | 0% |
| May 10 | 81°F | 57°F | 104°F 1967 | 41°F 1924 | 22% | 0% |
| May 11 | 81°F | 57°F | 100°F 2000 | 42°F 1946 | 23% | 0% |
| May 12 | 82°F | 58°F | 97°F 2022 | 36°F 1979 | 23% | 0% |
| May 13 | 82°F | 58°F | 98°F 2022 | 41°F 1966 | 23% | 0% |
| May 14 | 82°F | 58°F | 100°F 1952 | 43°F 1971 | 23% | 0% |
| May 15 | 83°F | 59°F | 102°F 2022 | 39°F 1907 | 23% | 0% |
| May 16 | 83°F | 59°F | 100°F 1966 | 45°F 1945 | 23% | 0% |
| May 17 | 83°F | 59°F | 103°F 1966 | 41°F 1945 | 24% | 0% |
| May 18 | 84°F | 60°F | 101°F 2013 | 47°F 1976 | 24% | 0% |
| May 19 | 84°F | 60°F | 102°F 1979 | 44°F 2002 | 24% | 0% |
| May 20 | 84°F | 61°F | 101°F 1996 | 45°F 1971 | 24% | 0% |
| May 21 | 85°F | 61°F | 104°F 1953 | 48°F 1967 | 25% | 0% |
| May 22 | 85°F | 61°F | 106°F 1939 | 45°F 1931 | 25% | 0% |
| May 23 | 85°F | 61°F | 110°F 2000 | 51°F 1931 | 25% | 0% |
| May 24 | 86°F | 62°F | 110°F 2000 | 49°F 1924 | 25% | 0% |
| May 25 | 86°F | 62°F | 100°F 1984 | 48°F 1947 | 25% | 0% |
| May 26 | 86°F | 62°F | 102°F 1963 | 50°F 2022 | 25% | 0% |
| May 27 | 87°F | 63°F | 106°F 1927 | 45°F 1961 | 26% | 0% |
| May 28 | 87°F | 63°F | 110°F 2011 | 48°F 1947 | 26% | 0% |
| May 29 | 87°F | 63°F | 106°F 1927 | 42°F 1947 | 26% | 0% |
| May 30 | 87°F | 63°F | 105°F 1985 | 46°F 1947 | 26% | 0% |
| May 31 | 88°F | 64°F | 108°F 1998 | 49°F 1983 | 26% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CDT).
- May 1
- sunrise 6:44 AM, sunset 8:17 PM
- May 31
- sunrise 6:23 AM, sunset 8:39 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00414093 (Henrietta), public domain. Records: NOAA GHCN-Daily, station USW00013966, 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.