Aberdeen weather in August: Aberdeen, South Dakota: normal highs, lows, rain and records for August
Aberdeen in August has a normal high of 83°F and a normal low of 57°F, a daily mean of 70°F, falling from 85°F on the 1st to 80°F by the 31st. Measurable precipitation falls on 8 days in a normal August, 2.24 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 28°C and low of 14°C, 57 mm of precipitation in August.
- NOAA stationAberdeen Regional Airport
- Station IDUSW00014929
- Location45.46°N 98.41°W
- Elevation1,302 ft (397 m)
- Population27,919
- Jan 24° 2°
- Feb 29° 6°
- Mar 42° 19°
- Apr 58° 31°
- May 70° 44°
- Jun 80° 55°
- Jul 85° 60°
- Aug 83° 57°
- Sep 75° 47°
- Oct 59° 33°
- Nov 43° 19°
- Dec 29° 8°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Aberdeen in August?
The normal high is 83°F and the normal low 57°F, for a daily mean of 69.7°F. August is 2.6°F cooler than July and 8.8°F warmer than September. August is the 2nd warmest month of the year in Aberdeen and the 4th wettest. Across the month the normal high falls 5°F, from 85°F on August 1 to 80°F on August 31. From one year to the next August's mean temperature typically moves about 2.6°F either way (NOAA's standard deviation), so roughly two Augusts in three average between 67°F and 72°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 28%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| August 1 | 85°F | 59°F | 28% | 16% |
| August 8 | 84°F | 58°F | 27% | 15% |
| August 15 | 83°F | 57°F | 26% | 14% |
| August 22 | 82°F | 55°F | 26% | 13% |
| August 31 | 80°F | 53°F | 26% | 13% |
Every day of August: normal high, low and chance of precipitation (warmest afternoon August 1, coldest night August 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| August 1 | 85°F | 59°F | 28% | 16% | 14 h 50 min |
| August 2 | 85°F | 59°F | 28% | 16% | 14 h 40 min |
| August 3 | 85°F | 59°F | 28% | 16% | 14 h 40 min |
| August 4 | 85°F | 59°F | 28% | 15% | 14 h 40 min |
| August 5 | 85°F | 59°F | 27% | 15% | 14 h 40 min |
| August 6 | 84°F | 59°F | 27% | 15% | 14 h 30 min |
| August 7 | 84°F | 59°F | 27% | 15% | 14 h 30 min |
| August 8 | 84°F | 58°F | 27% | 15% | 14 h 30 min |
| August 9 | 84°F | 58°F | 27% | 15% | 14 h 30 min |
| August 10 | 84°F | 58°F | 27% | 15% | 14 h 20 min |
| August 11 | 84°F | 58°F | 27% | 14% | 14 h 20 min |
| August 12 | 84°F | 58°F | 27% | 14% | 14 h 20 min |
| August 13 | 84°F | 57°F | 27% | 14% | 14 h 20 min |
| August 14 | 83°F | 57°F | 26% | 14% | 14 h 10 min |
| August 15 | 83°F | 57°F | 26% | 14% | 14 h 10 min |
| August 16 | 83°F | 57°F | 26% | 14% | 14 h 10 min |
| August 17 | 83°F | 57°F | 26% | 14% | 14 h |
| August 18 | 83°F | 56°F | 26% | 14% | 14 h |
| August 19 | 83°F | 56°F | 26% | 14% | 14 h |
| August 20 | 82°F | 56°F | 26% | 13% | 14 h |
| August 21 | 82°F | 56°F | 26% | 13% | 13 h 50 min |
| August 22 | 82°F | 55°F | 26% | 13% | 13 h 50 min |
| August 23 | 82°F | 55°F | 26% | 13% | 13 h 50 min |
| August 24 | 82°F | 55°F | 26% | 13% | 13 h 40 min |
| August 25 | 82°F | 54°F | 26% | 13% | 13 h 40 min |
| August 26 | 81°F | 54°F | 26% | 13% | 13 h 40 min |
| August 27 | 81°F | 54°F | 26% | 13% | 13 h 40 min |
| August 28 | 81°F | 54°F | 26% | 13% | 13 h 30 min |
| August 29 | 81°F | 53°F | 26% | 13% | 13 h 30 min |
| August 30 | 80°F | 53°F | 26% | 13% | 13 h 30 min |
| August 31 | 80°F | 53°F | 26% | 13% | 13 h 20 min |
- Normal high
- 83°FAugust average
- Normal low
- 57°FAugust average
- Precipitation
- 2.24 inmonth total
- Days with precipitation
- 80.01 inch or more
- Days at 90°F or more
- 4
- Daylight
- 14 h 50 min to 13 h 20 minAugust 1 to August 31
- Days at 70°F or more
- 30
- Days at 80°F or more
- 20
- Sunshine
- 83%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00014929; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Aberdeen in August?
On a given August day the chance of 0.01 inch or more is 26% on average, highest around August 1 (28%). In all, 2.24 in falls on 8 days of a normal August, 1 of them with an inch or more.
In a normal August in Aberdeen, 4 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00014929.
How humid and windy is Aberdeen in August?
At 3 p.m. the normal temperature is 78°F with 48% relative humidity and a dew point of 57°F; at 6 a.m. it is 58°F with 89% humidity. The wind averages 9.3 mph, most often from the south-southeast in the afternoon.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 58°F | 54°F | 89% | 7.2 mph | 73% |
| 9 a.m. | 67°F | 58°F | 73% | 10.4 mph | 78% |
| noon | 75°F | 58°F | 55% | 11.8 mph | 70% |
| 3 p.m. | 78°F | 57°F | 48% | 12.0 mph | 75% |
| 6 p.m. | 76°F | 58°F | 55% | 9.7 mph | 78% |
| 9 p.m. | 65°F | 58°F | 77% | 8.3 mph | 82% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00014929. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for August in Aberdeen?
The warmest August temperature on Aberdeen's official record (since 1893) is 112°F, on August 13, 1965; the coldest is 30°F, on August 29, 1893. The wettest August brought 6.71 in (2023).
The August mean against the 1991-2020 normal of 69.7°F: 2021 73.0°F (+3.3), 2022 71.4°F (+1.7), 2023 72.0°F (+2.3), 2024 70.5°F (+0.8), 2025 69.7°F (at normal), 2026 69.9°F (+0.2). 5 of 6 ran warmer than normal.
| August | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 73.0°F | +3.3°F | 4.10 in |
| 2022 | 71.4°F | +1.7°F | 1.59 in |
| 2023 | 72.0°F | +2.3°F | 6.71 in |
| 2024 | 70.5°F | +0.8°F | 4.64 in |
| 2025 | 69.7°F | at normal | 3.42 in |
| 2026 | 69.9°F | +0.2°F | 1.17 in |
Source: records: ACIS, NWS threaded record ABRthr; recent months: ACIS, station USW00014929. Records and recent months use complete months only.
How does August in Aberdeen compare across South Dakota?
Across the 100 places PlainClimate covers in South Dakota, August normal highs run from 78°F in Astoria to 91°F in Interior; Aberdeen's is 83°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.