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Richmond, Indiana climate
Cfa Humid subtropical
Richmond has a strongly seasonal cool-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is July with an average daily high near 29°C, while the coldest is January averaging around −7°C at night. Around 1089 mm of precipitation falls each year, peaking in June (122 mm) and easing off in February (57 mm).
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 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 countsRichmond climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 2 | 5 | 10 | 18 | 23 | 28 | 29 | 29 | 25 | 19 | 11 | 5 |
| Avg temp (°C) | −2 | 0 | 5 | 11 | 17 | 22 | 23 | 23 | 19 | 12 | 6 | 0 |
| Avg low (°C) | −7 | −5 | −1 | 5 | 11 | 16 | 18 | 17 | 12 | 6 | 0 | −4 |
| Precipitation (mm) | 81 | 57 | 87 | 108 | 118 | 122 | 110 | 83 | 79 | 80 | 84 | 79 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 2 | 5 | 10 | 18 | 23 | 28 |
| Avg temp (°C) | −2 | 0 | 5 | 11 | 17 | 22 |
| Avg low (°C) | −7 | −5 | −1 | 5 | 11 | 16 |
| Precipitation (mm) | 81 | 57 | 87 | 108 | 118 | 122 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 29 | 29 | 25 | 19 | 11 | 5 |
| Avg temp (°C) | 23 | 23 | 19 | 12 | 6 | 0 |
| Avg low (°C) | 18 | 17 | 12 | 6 | 0 | −4 |
| Precipitation (mm) | 110 | 83 | 79 | 80 | 84 | 79 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 12 | 10 | 11 | 12 | 13 | 11 | 11 | 8 | 9 | 9 | 9 | 12 |
| Days with high ≥ 32°C (days) | — | — | — | 0.0 | 0.4 | 4 | 6 | 4 | 2 | 0.1 | — | — |
| Days with low ≤ 0°C (days) | 25 | 23 | 18 | 6 | 0.4 | — | — | — | 0.1 | 4 | 15 | 23 |
| Days with snowfall ≥ 2.5 cm (days) | 2 | 2 | 0.6 | 0.1 | — | — | — | — | — | 0.0 | 0.2 | 1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 12 | 10 | 11 | 12 | 13 | 11 |
| Days with high ≥ 32°C (days) | — | — | — | 0.0 | 0.4 | 4 |
| Days with low ≤ 0°C (days) | 25 | 23 | 18 | 6 | 0.4 | — |
| Days with snowfall ≥ 2.5 cm (days) | 2 | 2 | 0.6 | 0.1 | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 11 | 8 | 9 | 9 | 9 | 12 |
| Days with high ≥ 32°C (days) | 6 | 4 | 2 | 0.1 | — | — |
| Days with low ≤ 0°C (days) | — | — | 0.1 | 4 | 15 | 23 |
| Days with snowfall ≥ 2.5 cm (days) | — | — | — | 0.0 | 0.2 | 1 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 74 | 71 | 69 | 66 | 65 | 59 | 53 | 50 | 48 | 57 | 64 | 72 |
| Clear days (≤ 30% cloud) | 2 | 3 | 4 | 5 | 5 | 6 | 8 | 9 | 10 | 9 | 6 | 3 |
| Partly cloudy days (30–70%) | 9 | 9 | 10 | 9 | 10 | 12 | 13 | 12 | 10 | 9 | 9 | 8 |
| Cloudy days (≥ 70%) | 20 | 17 | 17 | 16 | 16 | 12 | 11 | 9 | 9 | 13 | 15 | 19 |
| Relative humidity (%) | 87 | 85 | 81 | 78 | 79 | 79 | 77 | 73 | 70 | 73 | 80 | 86 |
| Wind speed (km/h) | 14.5 | 13.9 | 13.7 | 13.6 | 11.0 | 9.0 | 7.8 | 7.5 | 8.6 | 10.8 | 12.3 | 12.9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 74 | 71 | 69 | 66 | 65 | 59 |
| Clear days (≤ 30% cloud) | 2 | 3 | 4 | 5 | 5 | 6 |
| Partly cloudy days (30–70%) | 9 | 9 | 10 | 9 | 10 | 12 |
| Cloudy days (≥ 70%) | 20 | 17 | 17 | 16 | 16 | 12 |
| Relative humidity (%) | 87 | 85 | 81 | 78 | 79 | 79 |
| Wind speed (km/h) | 14.5 | 13.9 | 13.7 | 13.6 | 11.0 | 9.0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 53 | 50 | 48 | 57 | 64 | 72 |
| Clear days (≤ 30% cloud) | 8 | 9 | 10 | 9 | 6 | 3 |
| Partly cloudy days (30–70%) | 13 | 12 | 10 | 9 | 9 | 8 |
| Cloudy days (≥ 70%) | 11 | 9 | 9 | 13 | 15 | 19 |
| Relative humidity (%) | 77 | 73 | 70 | 73 | 80 | 86 |
| Wind speed (km/h) | 7.8 | 7.5 | 8.6 | 10.8 | 12.3 | 12.9 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Richmond Wtr Wks (NOAA GHCN station USC00127370), about 3 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.