Owatonna weather in August: Owatonna, Minnesota: normal highs, lows, rain and records for August
Owatonna in August has a normal high of 79°F and a normal low of 60°F, a daily mean of 70°F, falling from 81°F on the 1st to 77°F by the 31st. Measurable precipitation falls on 10 days in a normal August, 4.84 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 26°C and low of 15°C, 123 mm of precipitation in August.
- NOAA stationOwatonna
- Station IDUSC00216287
- Location44.10°N 93.23°W
- Elevation1,140 ft (348 m)
- Population26,626
- Jan 22° 5°
- Feb 27° 9°
- Mar 40° 22°
- Apr 55° 34°
- May 68° 47°
- Jun 78° 58°
- Jul 82° 62°
- Aug 79° 60°
- Sep 73° 51°
- Oct 59° 38°
- Nov 42° 25°
- Dec 28° 13°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Owatonna in August?
The normal high is 79°F and the normal low 60°F, for a daily mean of 69.5°F. August is 2.3°F cooler than July and 7.4°F warmer than September. August is the 2nd warmest month of the year in Owatonna and the 2nd wettest. Across the month the normal high falls 4°F, from 81°F on August 1 to 77°F on August 31. From one year to the next August's mean temperature typically moves about 2.4°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 31%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| August 1 | 81°F | 61°F | 31% | 22% |
| August 8 | 80°F | 61°F | 31% | 21% |
| August 15 | 80°F | 60°F | 31% | 21% |
| August 22 | 79°F | 59°F | 31% | 20% |
| August 31 | 77°F | 57°F | 30% | 19% |
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 | 81°F | 61°F | 31% | 22% | 14 h 40 min |
| August 2 | 81°F | 61°F | 31% | 22% | 14 h 40 min |
| August 3 | 81°F | 61°F | 31% | 21% | 14 h 30 min |
| August 4 | 81°F | 61°F | 31% | 21% | 14 h 30 min |
| August 5 | 81°F | 61°F | 31% | 21% | 14 h 30 min |
| August 6 | 81°F | 61°F | 31% | 21% | 14 h 30 min |
| August 7 | 80°F | 61°F | 31% | 21% | 14 h 20 min |
| August 8 | 80°F | 61°F | 31% | 21% | 14 h 20 min |
| August 9 | 80°F | 61°F | 31% | 21% | 14 h 20 min |
| August 10 | 80°F | 61°F | 31% | 21% | 14 h 20 min |
| August 11 | 80°F | 60°F | 31% | 21% | 14 h 10 min |
| August 12 | 80°F | 60°F | 31% | 21% | 14 h 10 min |
| August 13 | 80°F | 60°F | 31% | 21% | 14 h 10 min |
| August 14 | 80°F | 60°F | 31% | 21% | 14 h 10 min |
| August 15 | 80°F | 60°F | 31% | 21% | 14 h |
| August 16 | 80°F | 60°F | 31% | 21% | 14 h |
| August 17 | 79°F | 60°F | 31% | 21% | 14 h |
| August 18 | 79°F | 60°F | 31% | 21% | 14 h |
| August 19 | 79°F | 59°F | 31% | 21% | 13 h 50 min |
| August 20 | 79°F | 59°F | 31% | 21% | 13 h 50 min |
| August 21 | 79°F | 59°F | 31% | 20% | 13 h 50 min |
| August 22 | 79°F | 59°F | 31% | 20% | 13 h 50 min |
| August 23 | 79°F | 59°F | 31% | 20% | 13 h 40 min |
| August 24 | 79°F | 59°F | 30% | 20% | 13 h 40 min |
| August 25 | 78°F | 58°F | 30% | 20% | 13 h 40 min |
| August 26 | 78°F | 58°F | 30% | 20% | 13 h 30 min |
| August 27 | 78°F | 58°F | 30% | 20% | 13 h 30 min |
| August 28 | 78°F | 58°F | 30% | 20% | 13 h 30 min |
| August 29 | 78°F | 58°F | 30% | 20% | 13 h 30 min |
| August 30 | 78°F | 57°F | 30% | 20% | 13 h 20 min |
| August 31 | 77°F | 57°F | 30% | 19% | 13 h 20 min |
- Normal high
- 79°FAugust average
- Normal low
- 60°FAugust average
- Precipitation
- 4.84 inmonth total
- Days with precipitation
- 100.01 inch or more
- Days at 90°F or more
- 2
- Daylight
- 14 h 40 min to 13 h 20 minAugust 1 to August 31
- Days at 70°F or more
- 29
- Days at 80°F or more
- 17
- Sunshine
- 79%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00216287; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Owatonna in August?
On a given August day the chance of 0.01 inch or more is 31% on average, highest around August 2 (31%). In all, 4.84 in falls on 10 days of a normal August, 1 of them with an inch or more.
In a normal August in Owatonna, 2 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00216287.
What are the records for August in Owatonna?
The warmest August temperature on this station's record (since 1961) is 102°F, on August 1, 1988; the coldest is 36°F, on August 18, 1985. The wettest August brought 11.68 in (2007).
The August mean against the 1991-2020 normal of 69.5°F: 2021 71.4°F (+1.9), 2022 69.7°F (+0.2), 2023 72.1°F (+2.6), 2024 70.0°F (+0.5), 2025 69.7°F (+0.2), 2026 70.1°F (+0.6). 6 of 6 ran warmer than normal.
| August | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 71.4°F | +1.9°F | 5.21 in |
| 2022 | 69.7°F | +0.2°F | 6.09 in |
| 2023 | 72.1°F | +2.6°F | 3.07 in |
| 2024 | 70.0°F | +0.5°F | 6.75 in |
| 2025 | 69.7°F | +0.2°F | 5.14 in |
| 2026 | 70.1°F | +0.6°F | 3.84 in |
Source: records: ACIS, station USC00216287; recent months: ACIS, station USC00216287. Records and recent months use complete months only.
How does August in Owatonna compare across Minnesota?
Across the 129 places PlainClimate covers in Minnesota, August normal highs run from 70°F in Grand Marais to 82°F in Little Falls; Owatonna's is 79°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.