Evansville, IN weather in August
In August, Evansville sees highs around 88°F and lows around 67°F: hot and humid, with some rain. Expect about 7 wet days. It is one of the warmest months in Evansville.
- Normal high
- 88°F
- Normal low
- 67°F
- Wet days
- 7
- 3.1 in total
- Muggy days
- 20
- dew point 65°F+
How August changes from start to finish
| August 1 | August 31 | |
|---|---|---|
| Normal high | 89°F | 86°F |
| Normal low | 68°F | 64°F |
| Chance of a wet day | 26% | 22% |
| Sunrise / sunset | 5:53 am / 7:59 pm | 6:19 am / 7:21 pm |
| Daylight | 14.1 h | 13.0 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Central Time).
A typical August day
- 6 am69°Fdew point 65°F
- 9 am79°Fdew point 67°F
- Noon84°Fdew point 66°F
- 3 pm86°Fdew point 66°F
- 6 pm81°Fdew point 66°F
- 9 pm74°Fdew point 67°F
NOAA hourly normals (local standard time) from Evansville Regional Airport (5 mi away); average wind 5 mph; clear or few clouds in 64% of daytime hours, mostly cloudy or overcast in 21%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F1 of 31
- Hot dayshigh 90°F or more12 of 31
- Muggy daysdaily mean dew point 65°F or more20 of 31
- Wet daysat least 0.01 in of rain or melted snow7 of 31
- Notable rainat least 0.10 in5 of 31
- Freezing nightslow 32°F or below0 of 31
- Snow on the groundsnow depth 1 in or more0 of 31
Average days per August, counted from daily records for each year 1991-2020.
Rain in August
Normal precipitation is 3.1 in; a dry August brings about 1.0 in and a wet one about 4.3 in (25th and 75th percentiles). About 2 days bring half an inch or more, and about 1 an inch or more.
How August varies from year to year
- Warmest August, 1991-20202007: average high 96°F
- Coolest August2004: average high 83°F
- Wettest August2005: 8.5 in
- Driest August1991: 0.5 in
- Highest reading104°F (August 15, 2007)
- Lowest reading48°F (August 14, 2004)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
August compared with July and September
| July | August | September | |
|---|---|---|---|
| Normal high | 89°F | 88°F | 82°F |
| Normal low | 69°F | 67°F | 59°F |
| Wet days | 10 | 7 | 8 |
| Comfortable days | 1 | 1 | 9 |
| Daylight | 14.5 h | 13.6 h | 12.4 h |
Highs change by -1°F from July and -6°F into September.
Nearby alternatives in August
- Cooler: Carmel, IN159 mi · high 82°F · 7 wet days
How Evansville ranks in August
- Normal high168th warmest of 378 cities; 1st of 6 in Indiana
- Wet days137th driest of 378
- Comfortable days187th most of 341
What to pack for Evansville in August
- Light, breathable clothing – highs near 88°F and about 20 muggy days
Heating and cooling
August has 1 heating degree days and 382 cooling degree days (base 65°F), 7% of the year's total heating and cooling demand.
Questions
How hot is Evansville in August?
The normal high is 88°F and the normal low is 67°F. From 1991 to 2020 the hottest August reading was 104°F (August 15, 2007).
Does it rain a lot in Evansville in August?
About 7 days in August have at least 0.01 in of precipitation, and the normal total is 3.1 in. The wettest August in 1991-2020 was in 2005 (8.5 in); the driest was in 1991 (0.5 in).
Is August a good time to visit Evansville?
August ranks 8th of 12 months on our comfort score for Evansville (47 out of 100). It has about 1 comfortable day and about 12 days at 90°F or hotter. The best months are April and May.
Where the numbers come from
- Temperature, rain, snowfall, snow depth, frost dates, humidity and wind by hour and cloud cover: Evansville Regional Airport (USW00093817), 5.2 mi NNE of the city center, 400 ft . NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Evansville Regional Airport (724320-93817), 5.7 mi NNE of the city center, 402 ft . Hourly observations, 1991-2020.