Aberdeen, SD weather in August
Aberdeen is warm in August, with some rain: highs average 83°F and nights drop to about 57°F. There are about 8 days with rain. This is the peak of the warm season in Aberdeen. A good month for most outdoor plans.
- Normal high
- 83°F
- Normal low
- 57°F
- Wet days
- 8
- 2.2 in total
- Muggy days
- 6
- dew point 65°F+
How August changes from start to finish
| August 1 | August 31 | |
|---|---|---|
| Normal high | 85°F | 80°F |
| Normal low | 59°F | 53°F |
| Chance of a wet day | 28% | 26% |
| Sunrise / sunset | 6:18 am / 9:02 pm | 6:54 am / 8:14 pm |
| Daylight | 14.7 h | 13.3 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 am59°Fdew point 57°F
- 9 am69°Fdew point 60°F
- Noon77°Fdew point 60°F
- 3 pm80°Fdew point 59°F
- 6 pm78°Fdew point 60°F
- 9 pm67°Fdew point 60°F
NOAA hourly normals (local standard time) from Aberdeen (4 mi away); average wind 9 mph.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F10 of 31
- Hot dayshigh 90°F or more4 of 31
- Muggy daysdaily mean dew point 65°F or more6 of 31
- Wet daysat least 0.01 in of rain or melted snow8 of 31
- Notable rainat least 0.10 in4 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 2.2 in; a dry August brings about 1.2 in and a wet one about 2.9 in (25th and 75th percentiles). About 1 day brings half an inch or more, and about 1 an inch or more.
How August varies from year to year
- Warmest August, 1991-20202020: average high 86°F
- Coolest August2004: average high 76°F
- Wettest August2014: 6.2 in
- Driest August1996: 0.2 in
- Highest reading106°F (August 23, 2003)
- Lowest reading34°F (August 19, 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 | 85°F | 83°F | 75°F |
| Normal low | 60°F | 57°F | 47°F |
| Wet days | 10 | 8 | 8 |
| Comfortable days | 7 | 10 | 14 |
| Daylight | 15.3 h | 14.1 h | 12.5 h |
Highs change by -2°F from July and -8°F into September.
How Aberdeen ranks in August
- Normal high255th warmest of 378 cities; 2nd of 4 in South Dakota
- Wet days157th driest of 378
- Comfortable days72nd most of 341
What to pack for Aberdeen in August
- Layers – afternoons near 83°F but nights near 57°F
- A rain jacket or umbrella – rain on about 8 days
- Sunglasses and sunscreen – about 14.1 hours of daylight and highs near 83°F
Heating and cooling
August has 26 heating degree days and 172 cooling degree days (base 65°F), 2% of the year's total heating and cooling demand.
Questions
How hot is Aberdeen in August?
The normal high is 83°F and the normal low is 57°F. From 1991 to 2020 the hottest August reading was 106°F (August 23, 2003).
Does it rain a lot in Aberdeen in August?
About 8 days in August have at least 0.01 in of precipitation, and the normal total is 2.2 in. The wettest August in 1991-2020 was in 2014 (6.2 in); the driest was in 1996 (0.2 in).
Is August a good time to visit Aberdeen?
August ranks 4th of 12 months on our comfort score for Aberdeen (64 out of 100). It has about 10 comfortable days and about 4 days at 90°F or hotter. The best month is May.
Where the numbers come from
- Temperature, rain, snowfall, snow depth, frost dates and humidity and wind by hour: Aberdeen (USW00014929), 3.6 mi E of the city center, 1,302 ft . NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Aberdeen Regional Airport (726590-14929), 3.8 mi ESE of the city center, 1,298 ft . Hourly observations, 1991-2020.
- Not available for this location: cloud cover (no station close enough or similar enough in elevation).