Cape Girardeau weather in May: Cape Girardeau, Missouri: normal highs, lows, rain and records for May
Cape Girardeau in May has a normal high of 78°F and a normal low of 58°F, a daily mean of 68°F, rising from 74°F on the 1st to 83°F by the 31st. Measurable precipitation falls on 12 days in a normal May, 5.27 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 26°C and low of 14°C, 134 mm of precipitation in May.
- NOAA stationCape Girardeau Municipal Airport
- Station IDUSW00003935
- Location37.23°N 89.57°W
- Elevation336 ft (102 m)
- Population40,818
- Jan 43° 26°
- Feb 48° 30°
- Mar 58° 37°
- Apr 69° 47°
- May 78° 58°
- Jun 87° 66°
- Jul 89° 69°
- Aug 88° 66°
- Sep 82° 58°
- Oct 71° 46°
- Nov 57° 37°
- Dec 46° 30°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Cape Girardeau in May?
The normal high is 78°F and the normal low 58°F, for a daily mean of 67.8°F. May is 9.9°F warmer than April and 8.4°F cooler than June. May is the 5th warmest month of the year in Cape Girardeau and the wettest. Across the month the normal high rises 9°F, from 74°F on May 1 to 83°F on May 31. From one year to the next May's mean temperature typically moves about 2.6°F either way (NOAA's standard deviation), so roughly two Mays in three average between 65°F and 70°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 41%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| May 1 | 74°F | 53°F | 41% | 28% |
| May 8 | 76°F | 55°F | 41% | 28% |
| May 15 | 78°F | 57°F | 40% | 26% |
| May 22 | 80°F | 59°F | 39% | 24% |
| May 31 | 83°F | 62°F | 37% | 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 | 74°F | 53°F | 41% | 28% | 13 h 40 min |
| May 2 | 74°F | 53°F | 41% | 28% | 13 h 40 min |
| May 3 | 74°F | 53°F | 41% | 28% | 13 h 50 min |
| May 4 | 75°F | 54°F | 41% | 28% | 13 h 50 min |
| May 5 | 75°F | 54°F | 41% | 28% | 13 h 50 min |
| May 6 | 75°F | 54°F | 41% | 28% | 13 h 50 min |
| May 7 | 75°F | 55°F | 41% | 28% | 13 h 50 min |
| May 8 | 76°F | 55°F | 41% | 28% | 14 h |
| May 9 | 76°F | 55°F | 41% | 27% | 14 h |
| May 10 | 76°F | 56°F | 41% | 27% | 14 h |
| May 11 | 77°F | 56°F | 41% | 27% | 14 h |
| May 12 | 77°F | 56°F | 41% | 27% | 14 h |
| May 13 | 77°F | 57°F | 41% | 27% | 14 h |
| May 14 | 77°F | 57°F | 41% | 26% | 14 h 10 min |
| May 15 | 78°F | 57°F | 40% | 26% | 14 h 10 min |
| May 16 | 78°F | 58°F | 40% | 26% | 14 h 10 min |
| May 17 | 78°F | 58°F | 40% | 26% | 14 h 10 min |
| May 18 | 79°F | 58°F | 40% | 25% | 14 h 10 min |
| May 19 | 79°F | 59°F | 39% | 25% | 14 h 10 min |
| May 20 | 79°F | 59°F | 39% | 25% | 14 h 20 min |
| May 21 | 80°F | 59°F | 39% | 25% | 14 h 20 min |
| May 22 | 80°F | 59°F | 39% | 24% | 14 h 20 min |
| May 23 | 80°F | 60°F | 38% | 24% | 14 h 20 min |
| May 24 | 81°F | 60°F | 38% | 24% | 14 h 20 min |
| May 25 | 81°F | 60°F | 38% | 24% | 14 h 20 min |
| May 26 | 81°F | 61°F | 38% | 24% | 14 h 20 min |
| May 27 | 82°F | 61°F | 38% | 23% | 14 h 30 min |
| May 28 | 82°F | 61°F | 37% | 23% | 14 h 30 min |
| May 29 | 82°F | 62°F | 37% | 23% | 14 h 30 min |
| May 30 | 83°F | 62°F | 37% | 23% | 14 h 30 min |
| May 31 | 83°F | 62°F | 37% | 23% | 14 h 30 min |
- Normal high
- 78°FMay average
- Normal low
- 58°FMay average
- Precipitation
- 5.27 inmonth total
- Days with precipitation
- 120.01 inch or more
- Days at 90°F or more
- 2
- Daylight
- 13 h 40 min to 14 h 30 minMay 1 to May 31
- Days at 70°F or more
- 26
- Days at 80°F or more
- 15
- Sunshine
- 75%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00003935; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Cape Girardeau in May?
On a given May day the chance of 0.01 inch or more is 40% on average, highest around May 3 (41%). In all, 5.27 in falls on 12 days of a normal May, 2 of them with an inch or more.
In a normal May in Cape Girardeau, 2 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00003935.
What are the records for May in Cape Girardeau?
The warmest May temperature on this station's record (since 1960) is 97°F, on May 24, 1996; the coldest is 30°F, on May 17, 1968. The wettest May brought 16.89 in (1973).
The May mean against the 1991-2020 normal of 67.8°F: 2021 65.0°F (−2.8), 2022 69.3°F (+1.5), 2023 69.0°F (+1.2), 2024 71.4°F (+3.6), 2025 66.4°F (−1.4), 2026 66.7°F (−1.1). 3 of 6 ran warmer than normal.
| May | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 65.0°F | −2.8°F | 3.80 in |
| 2022 | 69.3°F | +1.5°F | 3.55 in |
| 2023 | 69.0°F | +1.2°F | 2.04 in |
| 2024 | 71.4°F | +3.6°F | 9.87 in |
| 2025 | 66.4°F | −1.4°F | 4.86 in |
| 2026 | 66.7°F | −1.1°F | 3.06 in |
Source: records: ACIS, station USW00003935; recent months: ACIS, station USW00003935. Records and recent months use complete months only.
How does May in Cape Girardeau compare across Missouri?
Across the 134 places PlainClimate covers in Missouri, May normal highs run from 71°F in Green City to 81°F in Malden; Cape Girardeau's is 78°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.