Weather in Montgomery in August

United States · 20-year averages, August

A hard month. August asks something of you. Go in knowing what. You should expect rain on 17 days of the month, which is more days wet than dry.

August ranks 12 of 12 — near the bottom of Montgomery's year. October is the month that works, and the swing between the two is 48 points, which is a different holiday rather than a slightly better one.

Rain on 17 days, 4 of them heavy. Enough to need a plan B, not enough to need a plan around it. Pack for 33.4 °C days and 22.6 °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: 9 days clear 35 °C, so a serious heatwave is normal rather than notable. Across the twenty years measured, the hottest August day reached 42.3 °C and the coldest night fell to 13.4 °C, and the wettest single day dropped 97 mm — roughly 82% of the month's rain in one day.

August is statistically steady but not small: the year-to-year variation is modest in relative terms, yet the wettest August on record still delivered 262 mm against 50 mm in the driest. In a month this wet, even a tame spread is a lot of rain in absolute terms — the 119 mm average is a reasonable planning figure, not a promise.

Wind is light at 4.5 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 72%.

How August sits in the year

Temperatures hold steady either side: 33.3 °C in July, 33.4 here, 31.3 in September. Nothing about the timing within the month matters much. Rain is the thing that moves: September brings 8 days less of it, so pushing the dates later buys drier weather.

Daylight in August

13.4 hours of daylight, losing 0.8 hours across the month. That is between Montgomery's extremes of 14.3 and 10 hours, so days are long enough not to constrain the plan.

An inland climate

With no coast nearby, the year swings a fair way — 31.7 °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.

August in Montgomery versus nearby

If Montgomery is one option among several, the nearby comparison is worth making. Atlanta is close enough to be a coin toss — within a degree on temperature, 1 day less rain. Mobile is a better bet in August — 2.3 °C cooler, 5 days more rain.

So: August is a compromise. October is 48 points better and is what Montgomery 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 Montgomery

MonthHigh °CLow °CRain daysRain mmHumidity %Daylight hScore
January13.21.7 101118210.257
February15.73.6 10130831163
March19.87.5 101328111.978
April23.911.6 91157912.980
May28.216.6 111107513.871
June31.921.2 151107314.348
July33.322.7 181267214.139
August33.422.6 171197213.438
September31.319.4 9887112.462
October26.513.1 7727011.486
November20.26.7 7977410.585
December15.13.5 10139831061

See all twelve months in Montgomery, or where else to go in August.

Planning the rest of the trip

Built and maintained by Amit Sharma, Auckland, New Zealand. I build these sites so the answer is free and the data is public.

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