Mermentau Weather in May
Average highs run from 80°F on May 1 to 87°F on May 31, and lows from 62°F to 70°F. Normal precipitation for the month is 5.52 in over about 8 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
- 84°F
- Average low
- 66°F
- Precipitation
- 5.52 in
- Record high
- 100°FMay 30, 1911
- Record low
- 39°FMay 1, 1913
- Chance of a freeze
- 0%
- Days of 90°F or more
- 2.7
- Daylight
- 13 h 21 min to 13 h 57 min
- Cloud cover
- 54%
- Humidity
- 79%
- Dew point
- 68°F
- Wind
- 9.6 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 | 80°F | 62°F | 93°F 1915 | 39°F 1913 | 25% | 0% |
| May 2 | 81°F | 62°F | 91°F 1943 | 46°F 1909 | 25% | 0% |
| May 3 | 81°F | 62°F | 94°F 1943 | 41°F 1929 | 25% | 0% |
| May 4 | 81°F | 63°F | 93°F 1943 | 43°F 1921 | 25% | 0% |
| May 5 | 81°F | 63°F | 92°F 1920 | 44°F 1921 | 25% | 0% |
| May 6 | 81°F | 63°F | 93°F 1920 | 48°F 1957 | 25% | 0% |
| May 7 | 82°F | 64°F | 91°F 1929 | 40°F 1898 | 25% | 0% |
| May 8 | 82°F | 64°F | 94°F 1916 | 42°F 1917 | 25% | 0% |
| May 9 | 82°F | 64°F | 95°F 1916 | 45°F 1917 | 25% | 0% |
| May 10 | 82°F | 64°F | 92°F 1939 | 48°F 1906 | 25% | 0% |
| May 11 | 83°F | 65°F | 93°F 1916 | 48°F 1909 | 26% | 0% |
| May 12 | 83°F | 65°F | 95°F 1916 | 46°F 1924 | 26% | 0% |
| May 13 | 83°F | 65°F | 93°F 1899 | 47°F 1931 | 26% | 0% |
| May 14 | 83°F | 66°F | 97°F 1915 | 51°F 1903 | 26% | 0% |
| May 15 | 84°F | 66°F | 93°F 1916 | 47°F 1917 | 27% | 0% |
| May 16 | 84°F | 66°F | 94°F 1978 | 49°F 1926 | 27% | 0% |
| May 17 | 84°F | 66°F | 93°F 1911 | 50°F 1945 | 27% | 0% |
| May 18 | 84°F | 67°F | 96°F 1913 | 51°F 2011 | 27% | 0% |
| May 19 | 85°F | 67°F | 94°F 1933 | 49°F 2002 | 28% | 0% |
| May 20 | 85°F | 67°F | 97°F 1916 | 49°F 1901 | 28% | 0% |
| May 21 | 85°F | 67°F | 93°F 1920 | 52°F 1919 | 28% | 0% |
| May 22 | 85°F | 68°F | 96°F 2005 | 54°F 1929 | 29% | 0% |
| May 23 | 85°F | 68°F | 96°F 1918 | 53°F 2001 | 29% | 0% |
| May 24 | 86°F | 68°F | 94°F 1911 | 54°F 1931 | 29% | 0% |
| May 25 | 86°F | 68°F | 98°F 2005 | 54°F 1979 | 30% | 0% |
| May 26 | 86°F | 69°F | 96°F 1898 | 44°F 1901 | 30% | 0% |
| May 27 | 86°F | 69°F | 98°F 1916 | 48°F 1901 | 31% | 0% |
| May 28 | 86°F | 69°F | 99°F 1916 | 49°F 1961 | 31% | 0% |
| May 29 | 87°F | 69°F | 97°F 1911 | 51°F 2002 | 32% | 0% |
| May 30 | 87°F | 69°F | 100°F 1911 | 51°F 1984 | 32% | 0% |
| May 31 | 87°F | 70°F | 97°F 1911 | 48°F 1903 | 33% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CDT).
- May 1
- sunrise 6:27 AM, sunset 7:48 PM
- May 31
- sunrise 6:10 AM, sunset 8:07 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00164700 (Jennings), public domain. Records: NOAA GHCN-Daily, station USC00164700, 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.