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Clarksville, Tennessee climate
Cfa Humid subtropical
Clarksville 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 −2°C at night. Precipitation is fairly even year-round, totalling about 1359 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 countsClarksville climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 8 | 11 | 16 | 22 | 26 | 30 | 32 | 32 | 29 | 22 | 15 | 10 |
| Avg temp (°C) | 3 | 5 | 10 | 15 | 20 | 24 | 26 | 26 | 22 | 16 | 9 | 5 |
| Avg low (°C) | −2 | −1 | 3 | 8 | 14 | 18 | 21 | 20 | 15 | 9 | 3 | −1 |
| Precipitation (mm) | 102 | 115 | 121 | 126 | 142 | 118 | 117 | 94 | 85 | 109 | 104 | 125 |
| Snowfall (cm) | 1 | 0 | 0 | — | — | — | — | — | — | — | — | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 8 | 11 | 16 | 22 | 26 | 30 |
| Avg temp (°C) | 3 | 5 | 10 | 15 | 20 | 24 |
| Avg low (°C) | −2 | −1 | 3 | 8 | 14 | 18 |
| Precipitation (mm) | 102 | 115 | 121 | 126 | 142 | 118 |
| Snowfall (cm) | 1 | 0 | 0 | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 32 | 32 | 29 | 22 | 15 | 10 |
| Avg temp (°C) | 26 | 26 | 22 | 16 | 9 | 5 |
| Avg low (°C) | 21 | 20 | 15 | 9 | 3 | −1 |
| Precipitation (mm) | 117 | 94 | 85 | 109 | 104 | 125 |
| Snowfall (cm) | — | — | — | — | — | — |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 12 | 11 | 12 | 12 | 12 | 10 | 10 | 9 | 8 | 9 | 10 | 12 |
| Days with high ≥ 32°C (days) | — | — | — | 0.2 | 2 | 10 | 18 | 16 | 7 | 0.5 | — | — |
| Days with low ≤ 0°C (days) | 21 | 16 | 9 | 2 | — | — | — | — | — | 1 | 10 | 18 |
| Days with snowfall ≥ 2.5 cm (days) | 0.2 | 0.1 | 0.0 | — | — | — | — | — | — | — | — | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 12 | 11 | 12 | 12 | 12 | 10 |
| Days with high ≥ 32°C (days) | — | — | — | 0.2 | 2 | 10 |
| Days with low ≤ 0°C (days) | 21 | 16 | 9 | 2 | — | — |
| Days with snowfall ≥ 2.5 cm (days) | 0.2 | 0.1 | 0.0 | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 10 | 9 | 8 | 9 | 10 | 12 |
| Days with high ≥ 32°C (days) | 18 | 16 | 7 | 0.5 | — | — |
| Days with low ≤ 0°C (days) | — | — | — | 1 | 10 | 18 |
| Days with snowfall ≥ 2.5 cm (days) | — | — | — | — | — | — |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 67 | 70 | 65 | 60 | 61 | 54 | 53 | 49 | 47 | 50 | 57 | 66 |
| Clear days (≤ 30% cloud) | 5 | 4 | 6 | 7 | 7 | 8 | 8 | 9 | 12 | 11 | 8 | 6 |
| Partly cloudy days (30–70%) | 8 | 8 | 9 | 8 | 10 | 11 | 13 | 13 | 8 | 9 | 9 | 9 |
| Cloudy days (≥ 70%) | 18 | 17 | 16 | 14 | 15 | 11 | 10 | 9 | 10 | 11 | 13 | 16 |
| Relative humidity (%) | 85 | 84 | 82 | 79 | 80 | 79 | 74 | 68 | 67 | 71 | 77 | 84 |
| Wind speed (mph) | 3.4 | 3.5 | 3.2 | 2.9 | 2.3 | 1.9 | 1.8 | 1.8 | 2.0 | 2.3 | 2.5 | 2.8 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 67 | 70 | 65 | 60 | 61 | 54 |
| Clear days (≤ 30% cloud) | 5 | 4 | 6 | 7 | 7 | 8 |
| Partly cloudy days (30–70%) | 8 | 8 | 9 | 8 | 10 | 11 |
| Cloudy days (≥ 70%) | 18 | 17 | 16 | 14 | 15 | 11 |
| Relative humidity (%) | 85 | 84 | 82 | 79 | 80 | 79 |
| Wind speed (mph) | 3.4 | 3.5 | 3.2 | 2.9 | 2.3 | 1.9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 53 | 49 | 47 | 50 | 57 | 66 |
| Clear days (≤ 30% cloud) | 8 | 9 | 12 | 11 | 8 | 6 |
| Partly cloudy days (30–70%) | 13 | 13 | 8 | 9 | 9 | 9 |
| Cloudy days (≥ 70%) | 10 | 9 | 10 | 11 | 13 | 16 |
| Relative humidity (%) | 74 | 68 | 67 | 71 | 77 | 84 |
| Wind speed (mph) | 1.8 | 1.8 | 2.0 | 2.3 | 2.5 | 2.8 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Clarksville Wwtp (NOAA GHCN station USC00401790), about 2 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.