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Cape Girardeau, Missouri climate
Cfa Humid subtropical
Cape Girardeau has a seasonal mild-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is July with an average daily high near 32°C, while the coldest is January averaging around −3°C at night. Precipitation is fairly even year-round, totalling about 1278 mm. Light snow accumulates each winter (23 cm of snow per year on average).
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation split into rain and snow · 1991–2020 normals · hover a month for the exact figuresClear vs cloudy days
Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day countsCape Girardeau climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 7 | 10 | 15 | 21 | 26 | 31 | 32 | 32 | 28 | 22 | 15 | 9 |
| Avg temp (°C) | 2 | 5 | 9 | 15 | 20 | 25 | 27 | 26 | 22 | 15 | 9 | 4 |
| Avg low (°C) | −3 | −1 | 4 | 9 | 14 | 19 | 21 | 19 | 15 | 9 | 3 | −1 |
| Precipitation (mm) | 98 | 100 | 118 | 131 | 124 | 115 | 109 | 79 | 90 | 101 | 104 | 109 |
| Snowfall (cm) | 7 | 8 | 3 | — | — | — | — | — | — | 0 | 1 | 5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 7 | 10 | 15 | 21 | 26 | 31 |
| Avg temp (°C) | 2 | 5 | 9 | 15 | 20 | 25 |
| Avg low (°C) | −3 | −1 | 4 | 9 | 14 | 19 |
| Precipitation (mm) | 98 | 100 | 118 | 131 | 124 | 115 |
| Snowfall (cm) | 7 | 8 | 3 | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 32 | 32 | 28 | 22 | 15 | 9 |
| Avg temp (°C) | 27 | 26 | 22 | 15 | 9 | 4 |
| Avg low (°C) | 21 | 19 | 15 | 9 | 3 | −1 |
| Precipitation (mm) | 109 | 79 | 90 | 101 | 104 | 109 |
| Snowfall (cm) | — | — | — | 0 | 1 | 5 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 10 | 9 | 11 | 11 | 11 | 9 | 9 | 8 | 7 | 8 | 9 | 10 |
| Days with high ≥ 32°C (days) | — | — | — | — | 1 | 11 | 17 | 14 | 7 | 0.4 | — | — |
| Days with low ≤ 0°C (days) | 22 | 17 | 10 | 2 | — | — | — | — | — | 2 | 11 | 19 |
| Days with snowfall ≥ 2.5 cm (days) | 0.8 | 0.8 | 0.2 | 0.0 | — | — | — | — | — | 0.0 | 0.1 | 0.4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 10 | 9 | 11 | 11 | 11 | 9 |
| Days with high ≥ 32°C (days) | — | — | — | — | 1 | 11 |
| Days with low ≤ 0°C (days) | 22 | 17 | 10 | 2 | — | — |
| Days with snowfall ≥ 2.5 cm (days) | 0.8 | 0.8 | 0.2 | 0.0 | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 9 | 8 | 7 | 8 | 9 | 10 |
| Days with high ≥ 32°C (days) | 17 | 14 | 7 | 0.4 | — | — |
| Days with low ≤ 0°C (days) | — | — | — | 2 | 11 | 19 |
| Days with snowfall ≥ 2.5 cm (days) | — | — | — | 0.0 | 0.1 | 0.4 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 66 | 69 | 65 | 61 | 63 | 54 | 50 | 47 | 46 | 51 | 58 | 66 |
| Clear days (≤ 30% cloud) | 5 | 4 | 6 | 7 | 6 | 9 | 10 | 11 | 12 | 11 | 8 | 5 |
| Partly cloudy days (30–70%) | 9 | 8 | 9 | 9 | 10 | 10 | 12 | 11 | 9 | 9 | 8 | 10 |
| Cloudy days (≥ 70%) | 17 | 16 | 16 | 14 | 15 | 11 | 9 | 9 | 9 | 11 | 14 | 16 |
| Relative humidity (%) | 84 | 83 | 81 | 79 | 80 | 79 | 76 | 69 | 66 | 70 | 77 | 84 |
| Wind speed (m/s) | 2.8 | 2.9 | 2.9 | 2.8 | 2.2 | 1.8 | 1.7 | 1.6 | 1.8 | 2.1 | 2.4 | 2.5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 66 | 69 | 65 | 61 | 63 | 54 |
| Clear days (≤ 30% cloud) | 5 | 4 | 6 | 7 | 6 | 9 |
| Partly cloudy days (30–70%) | 9 | 8 | 9 | 9 | 10 | 10 |
| Cloudy days (≥ 70%) | 17 | 16 | 16 | 14 | 15 | 11 |
| Relative humidity (%) | 84 | 83 | 81 | 79 | 80 | 79 |
| Wind speed (m/s) | 2.8 | 2.9 | 2.9 | 2.8 | 2.2 | 1.8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 50 | 47 | 46 | 51 | 58 | 66 |
| Clear days (≤ 30% cloud) | 10 | 11 | 12 | 11 | 8 | 5 |
| Partly cloudy days (30–70%) | 12 | 11 | 9 | 9 | 8 | 10 |
| Cloudy days (≥ 70%) | 9 | 9 | 9 | 11 | 14 | 16 |
| Relative humidity (%) | 76 | 69 | 66 | 70 | 77 | 84 |
| Wind speed (m/s) | 1.7 | 1.6 | 1.8 | 2.1 | 2.4 | 2.5 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Paducah (NOAA GHCN station USW00003816), about 71 km from the city centre.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.