Weather in Huntsville in July
United States · 20-year averages, July
A hard month. July is a hard month in Huntsville, and worth planning around. You should expect rain on 18 days of the month, which is more days wet than dry.
July ranks 12 of 12 — near the bottom of Huntsville's year. October is the month that works, and the swing between the two is 38 points, which is a different holiday rather than a slightly better one.
Rain on 18 days, 3 of them heavy. Enough to need a plan B, not enough to need a plan around it. Pack for 32.3 °C days and 21.6 °C nights; the spread matters more here than any single number.
What the averages hide
Averages flatten a month, and this one hides a few things: 5 days clear 35 °C, so a serious heatwave is normal rather than notable. Across the twenty years measured, the hottest July day reached 40.2 °C and the coldest night fell to 14 °C, and the wettest single day dropped 53 mm — roughly 44% of the month's rain in one day.
July is statistically steady but not small: the year-to-year variation is modest in relative terms, yet the wettest July on record still delivered 235 mm against 66 mm in the driest. In a month this wet, even a tame spread is a lot of rain in absolute terms — the 121 mm average is a reasonable planning figure, not a promise.
Wind is light at 2.9 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 73%.
How July sits in the year
Temperatures hold steady either side: 30.3 °C in June, 32.3 here, 32.8 in August. Nothing about the timing within the month matters much.
Daylight in July
July is at or near the longest days of Huntsville's year: 14.3 hours of daylight, losing 0.5 hours across the month. Evenings are the real gain — dinner outdoors still happens in full light.
An inland climate
With no coast nearby, the year swings a fair way — 33.3 °C between the warmest afternoons and the coldest nights, wider than any coastal city at this latitude would manage.
How busy it gets
Off season. The genuine off season: cheapest by a distance, with the caveat that some tours and restaurants close entirely.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
July in Huntsville versus nearby
If Huntsville is one option among several, the nearby comparison is worth making. Nashville is close enough to be a coin toss — within a degree on temperature, 1 day less rain. Atlanta is close enough to be a coin toss — within a degree on temperature, 1 day more rain.
So: July is a compromise. October is 38 points better and is what Huntsville is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.
Every month in Huntsville
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Score |
|---|---|---|---|---|---|---|---|
| January | 9.6 | -0.5 | 9 | 119 | 84 | 10.1 | 46 |
| February | 11.9 | 1.3 | 12 | 135 | 84 | 10.9 | 48 |
| March | 16.9 | 5.4 | 11 | 125 | 82 | 11.9 | 65 |
| April | 21.8 | 10.1 | 11 | 125 | 79 | 13 | 77 |
| May | 26 | 15.2 | 12 | 118 | 78 | 14 | 75 |
| June | 30.3 | 19.7 | 14 | 103 | 75 | 14.5 | 59 |
| July | 32.3 | 21.6 | 18 | 121 | 73 | 14.3 | 43 |
| August | 32.8 | 21.3 | 14 | 104 | 70 | 13.5 | 47 |
| September | 29.9 | 17.6 | 9 | 99 | 70 | 12.4 | 68 |
| October | 23.9 | 11.1 | 9 | 93 | 71 | 11.4 | 81 |
| November | 16.9 | 4.7 | 9 | 105 | 76 | 10.4 | 70 |
| December | 11.8 | 1.4 | 11 | 151 | 84 | 9.8 | 49 |
See all twelve months in Huntsville, or where else to go in July.
Planning the rest of the trip
- Flight time to Huntsville how long you are actually in the air
- Huntsville time zone and the difference from home
- Days until your trip count down to the departure date
- Gyms & clubs in Huntsville keep training while you are there