McComb weather in May: McComb, Mississippi: normal highs, lows, rain and records for May
McComb in May has a normal high of 84°F and a normal low of 62°F, a daily mean of 73°F, rising from 80°F on the 1st to 88°F by the 31st. Measurable precipitation falls on 9 days in a normal May, 4.55 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 29°C and low of 17°C, 116 mm of precipitation in May.
- NOAA stationMcComb/Pike County/John E Lewis Airport
- Station IDUSW00093919
- Location31.18°N 90.47°W
- Elevation413 ft (126 m)
- Population11,762
- Jan 60° 38°
- Feb 64° 42°
- Mar 71° 48°
- Apr 77° 54°
- May 84° 62°
- Jun 89° 69°
- Jul 91° 71°
- Aug 91° 71°
- Sep 87° 67°
- Oct 79° 56°
- Nov 69° 45°
- Dec 62° 41°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is McComb in May?
The normal high is 84°F and the normal low 62°F, for a daily mean of 73.1°F. May is 7.6°F warmer than April and 6.1°F cooler than June. May is the 5th warmest month of the year in McComb and the 9th wettest. Across the month the normal high rises 8°F, from 80°F on May 1 to 88°F on May 31. From one year to the next May's mean temperature typically moves about 2.2°F either way (NOAA's standard deviation), so roughly two Mays in three average between 71°F and 75°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 35%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| May 1 | 80°F | 58°F | 27% | 18% |
| May 8 | 82°F | 60°F | 27% | 18% |
| May 15 | 84°F | 62°F | 29% | 19% |
| May 22 | 86°F | 64°F | 32% | 21% |
| May 31 | 88°F | 66°F | 35% | 23% |
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 | 80°F | 58°F | 27% | 18% | 13 h 20 min |
| May 2 | 81°F | 58°F | 27% | 18% | 13 h 20 min |
| May 3 | 81°F | 58°F | 27% | 18% | 13 h 30 min |
| May 4 | 81°F | 59°F | 27% | 18% | 13 h 30 min |
| May 5 | 81°F | 59°F | 27% | 18% | 13 h 30 min |
| May 6 | 82°F | 59°F | 27% | 18% | 13 h 30 min |
| May 7 | 82°F | 60°F | 27% | 18% | 13 h 30 min |
| May 8 | 82°F | 60°F | 27% | 18% | 13 h 30 min |
| May 9 | 82°F | 60°F | 28% | 18% | 13 h 30 min |
| May 10 | 83°F | 60°F | 28% | 18% | 13 h 40 min |
| May 11 | 83°F | 61°F | 28% | 19% | 13 h 40 min |
| May 12 | 83°F | 61°F | 28% | 19% | 13 h 40 min |
| May 13 | 83°F | 61°F | 29% | 19% | 13 h 40 min |
| May 14 | 84°F | 62°F | 29% | 19% | 13 h 40 min |
| May 15 | 84°F | 62°F | 29% | 19% | 13 h 40 min |
| May 16 | 84°F | 62°F | 30% | 20% | 13 h 40 min |
| May 17 | 84°F | 62°F | 30% | 20% | 13 h 50 min |
| May 18 | 85°F | 63°F | 30% | 20% | 13 h 50 min |
| May 19 | 85°F | 63°F | 31% | 20% | 13 h 50 min |
| May 20 | 85°F | 63°F | 31% | 20% | 13 h 50 min |
| May 21 | 85°F | 64°F | 31% | 21% | 13 h 50 min |
| May 22 | 86°F | 64°F | 32% | 21% | 13 h 50 min |
| May 23 | 86°F | 64°F | 32% | 21% | 13 h 50 min |
| May 24 | 86°F | 64°F | 32% | 22% | 13 h 50 min |
| May 25 | 86°F | 65°F | 33% | 22% | 13 h 50 min |
| May 26 | 87°F | 65°F | 33% | 22% | 14 h |
| May 27 | 87°F | 65°F | 34% | 22% | 14 h |
| May 28 | 87°F | 66°F | 34% | 23% | 14 h |
| May 29 | 87°F | 66°F | 34% | 23% | 14 h |
| May 30 | 87°F | 66°F | 35% | 23% | 14 h |
| May 31 | 88°F | 66°F | 35% | 23% | 14 h |
- Normal high
- 84°FMay average
- Normal low
- 62°FMay average
- Precipitation
- 4.55 inmonth total
- Days with precipitation
- 90.01 inch or more
- Days at 90°F or more
- 5
- Daylight
- 13 h 20 min to 14 hMay 1 to May 31
- Days at 70°F or more
- 31
- Days at 80°F or more
- 26
- Sunshine
- 80%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00093919; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in McComb in May?
On a given May day the chance of 0.01 inch or more is 30% on average, highest around May 31 (35%). In all, 4.55 in falls on 9 days of a normal May, 2 of them with an inch or more.
In a normal May in McComb, 5 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00093919.
How humid and windy is McComb in May?
At 3 p.m. the normal temperature is 85°F with 53% relative humidity and a dew point of 66°F; at 6 a.m. it is 69°F with 92% humidity. The wind averages 4.7 mph, most often from the south-southwest in the afternoon. A dew point of 65°F or more feels muggy to most people.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 69°F | 67°F | 92% | 2.7 mph | – |
| 9 a.m. | 79°F | 68°F | 70% | 6.4 mph | 52% |
| noon | 84°F | 67°F | 56% | 7.1 mph | 46% |
| 3 p.m. | 85°F | 66°F | 53% | 7.3 mph | 53% |
| 6 p.m. | 81°F | 67°F | 63% | 5.5 mph | 65% |
| 9 p.m. | 74°F | 68°F | 82% | 3.2 mph | 71% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00093919. 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 McComb?
The warmest May temperature on this station's record (since 1948) is 100°F, on May 31, 1951; the coldest is 35°F, on May 4, 2013. The wettest May brought 12.27 in (1953).
The May mean against the 1991-2020 normal of 73.1°F: 2021 72.1°F (−1.0), 2022 76.5°F (+3.4), 2023 73.0°F (−0.1), 2024 75.0°F (+1.9), 2025 73.7°F (+0.6), 2026 72.6°F (−0.5). 3 of 6 ran warmer than normal.
| May | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 72.1°F | −1.0°F | 6.24 in |
| 2022 | 76.5°F | +3.4°F | 2.93 in |
| 2023 | 73.0°F | −0.1°F | 1.49 in |
| 2024 | 75.0°F | +1.9°F | 6.58 in |
| 2025 | 73.7°F | +0.6°F | 8.09 in |
| 2026 | 72.6°F | −0.5°F | – |
Source: records: ACIS, station USW00093919; recent months: ACIS, station USW00093919. Records and recent months use complete months only.
How does May in McComb compare across Mississippi?
Across the 81 places PlainClimate covers in Mississippi, May normal highs run from 79°F in Independence to 88°F in Monticello; McComb's is 84°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.