Huntsville climate
Huntsville is warmest in July, with average highs of 31 °C, and coldest in January, when nights average 1.6 °C. March is the wettest month (144 mm) and August the driest (81 mm). Figures are 1991–2020 climate normals.
Across a full year Huntsville averages 1,354 mm of rain, 151 days above 25 °C and 40 days below freezing.
United States · 193 m elevation · population 215,006 · 1991–2020 normals
Temperature below 0 °C to above 30 °C Rain band height is that month’s share of the wettest month
- Warmest month July 31 °C
- Coldest month January 1.6 °C
- Driest month August 81 mm
- Wettest month March 144 mm
- Least cloud October 45 % cloud
- Hottest on record August 40 °C
- Coldest on record February -17 °C
What to expectHuntsville through the year
Huntsville has a clear annual cycle: average daily highs run from 10 °C in January to 31 °C in July, a swing of 21 °C in mean temperature across the year.
Counted across a normal year, 151 days a year reach 25 °C, 70 of them reach 30 °C, 40 nights drop below freezing. The warmest reading in the 1991–2020 record is 40 °C, in August.
Rain is spread fairly evenly through the year, from 81 mm in August to 144 mm in March. There is no dry season to aim for.
Month by month
| Month | Avg high | Rainfall | Cloud |
|---|---|---|---|
| January | 10.2 °C | 129 mm | 61 % |
| February | 12.6 °C | 125 mm | 64 % |
| March | 17.0 °C | 144 mm | 60 % |
| April | 21.6 °C | 125 mm | 56 % |
| May | 26.0 °C | 107 mm | 56 % |
| June | 29.7 °C | 107 mm | 54 % |
| July | 31.2 °C | 111 mm | 55 % |
| August | 31.1 °C | 81 mm | 52 % |
| September | 28.3 °C | 94 mm | 47 % |
| October | 22.6 °C | 86 mm | 45 % |
| November | 16.1 °C | 105 mm | 52 % |
| December | 11.5 °C | 139 mm | 62 % |
Temperature month by month
| Month | Avg high | Avg low | Mean | Record high | Record low | Days above 25 °C | Days above 30 °C | Days below 0 °C |
|---|---|---|---|---|---|---|---|---|
| January | 10.2 °C | 1.6 °C | 5.2 °C | 22.8 °C | -16.5 °C | 0 | 0 | 13 |
| February | 12.6 °C | 3.1 °C | 7.1 °C | 24.2 °C | -17.0 °C | 0 | 0 | 9 |
| March | 17.0 °C | 6.6 °C | 11.1 °C | 28.8 °C | -11.4 °C | 1 | 0 | 4 |
| April | 21.6 °C | 11.0 °C | 15.8 °C | 29.9 °C | -1.5 °C | 7 | 0 | 0 |
| May | 26.0 °C | 15.8 °C | 20.6 °C | 34.6 °C | 2.9 °C | 20 | 4 | 0 |
| June | 29.7 °C | 20.1 °C | 24.6 °C | 39.4 °C | 10.6 °C | 28 | 14 | 0 |
| July | 31.2 °C | 22.0 °C | 26.3 °C | 38.3 °C | 14.3 °C | 31 | 21 | 0 |
| August | 31.1 °C | 21.7 °C | 26.0 °C | 39.6 °C | 13.2 °C | 30 | 20 | 0 |
| September | 28.3 °C | 18.6 °C | 23.1 °C | 36.1 °C | 6.2 °C | 24 | 10 | 0 |
| October | 22.6 °C | 12.7 °C | 17.1 °C | 35.9 °C | 0.6 °C | 10 | 1 | 0 |
| November | 16.1 °C | 6.8 °C | 10.8 °C | 29.9 °C | -6.7 °C | 1 | 0 | 3 |
| December | 11.5 °C | 3.2 °C | 6.7 °C | 23.7 °C | -9.7 °C | 0 | 0 | 10 |
Rain, sun and wind month by month
| Month | Rainfall | Wet days | Daylight | Cloud cover | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 129 mm | 11 | 10 h/day | 61 % | 72 % | 16 km/h |
| February | 125 mm | 11 | 11 h/day | 64 % | 72 % | 16 km/h |
| March | 144 mm | 12 | 12 h/day | 60 % | 71 % | 16 km/h |
| April | 125 mm | 10 | 13 h/day | 56 % | 71 % | 16 km/h |
| May | 107 mm | 11 | 14 h/day | 56 % | 72 % | 14 km/h |
| June | 107 mm | 13 | 14 h/day | 54 % | 74 % | 11 km/h |
| July | 111 mm | 13 | 14 h/day | 55 % | 75 % | 10 km/h |
| August | 81 mm | 11 | 13 h/day | 52 % | 73 % | 10 km/h |
| September | 94 mm | 8 | 12 h/day | 47 % | 70 % | 12 km/h |
| October | 86 mm | 7 | 11 h/day | 45 % | 70 % | 13 km/h |
| November | 105 mm | 9 | 10 h/day | 52 % | 72 % | 15 km/h |
| December | 139 mm | 11 | 9.8 h/day | 62 % | 76 % | 15 km/h |
How Huntsville compares
The same four figures for nearby destinations, so the numbers above have something to be read against. Summer high is the warmest month's average high; winter low is the coldest month's average low.
| Destination | Summer high | Winter low | Rain per year | Days above 25 °C |
|---|---|---|---|---|
| Huntsville | 31 °C | 1.6 °C | 1,354 mm | 151 |
| Chattanooga · United States | 31 °C | 1.0 °C | 1,311 mm | 145 |
| Murfreesboro · United States | 31 °C | 0.6 °C | 1,335 mm | 147 |
| Birmingham · United States | 32 °C | 2.9 °C | 1,342 mm | 164 |
| Nashville · United States | 31 °C | 0.08 °C | 1,327 mm | 146 |
Where Huntsville ranks
| Ranking | Position | Value |
|---|---|---|
| Places with the best weather in North America in October | 20th of 50 | 94/100 |
Planning a trip? See the best time to visit Huntsville.
QuestionsCommon questions about Huntsville’s climate
When is the best time to visit Huntsville?
That depends on what you want, so the honest answer is a comparison rather than a single month. May, September, October sit closest to 20 °C on average, July is the warmest month and August the driest. The month-by-month table above has the full picture.
How hot does Huntsville get?
In July, the warmest month, daily highs average 31 °C. About 70 days a year pass 30 °C. The highest value in the 1991–2020 record is 40 °C.
How cold does it get in winter?
Nights average 1.6 °C in January, the coldest month. A normal year has 40 nights below freezing.
Which month is wettest in Huntsville?
March, averaging 144 mm over 12 days with rain. The driest month is August with 81 mm. The year as a whole averages 1,354 mm.
Are these figures a forecast?
No. They are 1991–2020 climate normals: the average of thirty years, which describes what a month is usually like in Huntsville rather than what any particular week will bring. Individual years can differ substantially from the normal.
Data sources and method
- ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
- Open-Meteo — Open-Meteo.com. CC BY 4.0
- NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
- GeoNames — GeoNames.org. CC BY 4.0
- Normal period
- 1991–2020
- Data point
- 34.730°, -86.586° , 193 m above sea level (the coordinates the reanalysis values are taken for)
- Dataset version
- era5-1991-2020-scores1.1
- Last processed
Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: monthly rankings, daylight hours, beach and comfort scores. Full formulas are on the methodology page.
Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.