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Hermitage, Tennessee climate
Cfa Humid subtropical
Hermitage has a seasonal mild-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is July with an average daily high near 31°C, while the coldest is January averaging around −2°C at night. Precipitation is fairly even year-round, totalling about 1393 mm. Snow is occasional (12 cm of snow per year on average).
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 countsHermitage climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 8 | 10 | 16 | 21 | 25 | 30 | 31 | 31 | 28 | 22 | 15 | 10 |
| Avg temp (°C) | 3 | 5 | 9 | 15 | 20 | 24 | 26 | 25 | 22 | 16 | 9 | 5 |
| Avg low (°C) | −2 | −1 | 3 | 8 | 14 | 18 | 20 | 19 | 16 | 9 | 3 | 0 |
| Precipitation (mm) | 110 | 119 | 125 | 132 | 138 | 112 | 123 | 118 | 103 | 89 | 102 | 123 |
| Snowfall (cm) | 5 | 4 | 1 | — | — | — | — | — | — | — | 0 | 1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 8 | 10 | 16 | 21 | 25 | 30 |
| Avg temp (°C) | 3 | 5 | 9 | 15 | 20 | 24 |
| Avg low (°C) | −2 | −1 | 3 | 8 | 14 | 18 |
| Precipitation (mm) | 110 | 119 | 125 | 132 | 138 | 112 |
| Snowfall (cm) | 5 | 4 | 1 | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 31 | 31 | 28 | 22 | 15 | 10 |
| Avg temp (°C) | 26 | 25 | 22 | 16 | 9 | 5 |
| Avg low (°C) | 20 | 19 | 16 | 9 | 3 | 0 |
| Precipitation (mm) | 123 | 118 | 103 | 89 | 102 | 123 |
| Snowfall (cm) | — | — | — | — | 0 | 1 |
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 | 13 | 12 | 12 | 11 | 11 | 10 | 8 | 9 | 10 | 12 |
| Days with high ≥ 32°C (days) | — | — | — | 0.0 | 0.9 | 7 | 15 | 13 | 5 | 0.3 | — | — |
| Days with low ≤ 0°C (days) | 19 | 15 | 8 | 0.9 | — | — | — | — | — | 0.5 | 8 | 16 |
| Days with snowfall ≥ 2.5 cm (days) | 0.5 | 0.4 | 0.4 | — | — | — | — | — | — | — | 0.0 | 0.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 12 | 11 | 13 | 12 | 12 | 11 |
| Days with high ≥ 32°C (days) | — | — | — | 0.0 | 0.9 | 7 |
| Days with low ≤ 0°C (days) | 19 | 15 | 8 | 0.9 | — | — |
| Days with snowfall ≥ 2.5 cm (days) | 0.5 | 0.4 | 0.4 | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 11 | 10 | 8 | 9 | 10 | 12 |
| Days with high ≥ 32°C (days) | 15 | 13 | 5 | 0.3 | — | — |
| Days with low ≤ 0°C (days) | — | — | — | 0.5 | 8 | 16 |
| Days with snowfall ≥ 2.5 cm (days) | — | — | — | — | 0.0 | 0.1 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 68 | 70 | 65 | 61 | 61 | 55 | 54 | 51 | 48 | 50 | 57 | 67 |
| Clear days (≤ 30% cloud) | 5 | 4 | 5 | 7 | 6 | 8 | 8 | 9 | 11 | 11 | 8 | 5 |
| Partly cloudy days (30–70%) | 9 | 8 | 10 | 9 | 10 | 10 | 13 | 13 | 9 | 9 | 9 | 8 |
| Cloudy days (≥ 70%) | 18 | 17 | 16 | 14 | 15 | 12 | 11 | 9 | 10 | 11 | 13 | 17 |
| Relative humidity (%) | 85 | 84 | 82 | 80 | 80 | 78 | 74 | 68 | 68 | 71 | 76 | 84 |
| Wind speed (mph) | 4.8 | 5.0 | 4.8 | 4.5 | 3.6 | 3.0 | 2.7 | 2.7 | 3.2 | 3.5 | 3.9 | 4.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 68 | 70 | 65 | 61 | 61 | 55 |
| Clear days (≤ 30% cloud) | 5 | 4 | 5 | 7 | 6 | 8 |
| Partly cloudy days (30–70%) | 9 | 8 | 10 | 9 | 10 | 10 |
| Cloudy days (≥ 70%) | 18 | 17 | 16 | 14 | 15 | 12 |
| Relative humidity (%) | 85 | 84 | 82 | 80 | 80 | 78 |
| Wind speed (mph) | 4.8 | 5.0 | 4.8 | 4.5 | 3.6 | 3.0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 54 | 51 | 48 | 50 | 57 | 67 |
| Clear days (≤ 30% cloud) | 8 | 9 | 11 | 11 | 8 | 5 |
| Partly cloudy days (30–70%) | 13 | 13 | 9 | 9 | 9 | 8 |
| Cloudy days (≥ 70%) | 11 | 9 | 10 | 11 | 13 | 17 |
| Relative humidity (%) | 74 | 68 | 68 | 71 | 76 | 84 |
| Wind speed (mph) | 2.7 | 2.7 | 3.2 | 3.5 | 3.9 | 4.3 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Old Hickory Wfo (NOAA GHCN station USC00406806), about 8 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.