Superior weather in August: Superior, Wisconsin: normal highs, lows, rain and records for August
Superior in August has a normal high of 75°F and a normal low of 58°F, a daily mean of 66°F, falling from 77°F on the 1st to 72°F by the 31st. Measurable precipitation falls on 10 days in a normal August, 3.92 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 24°C and low of 14°C, 100 mm of precipitation in August.
- NOAA stationSuperior
- Station IDUSC00478349
- Location46.73°N 92.07°W
- Elevation607 ft (185 m)
- Population26,620
- Jan 23° 6°
- Feb 27° 9°
- Mar 36° 21°
- Apr 46° 32°
- May 57° 41°
- Jun 67° 50°
- Jul 76° 58°
- Aug 75° 58°
- Sep 67° 50°
- Oct 53° 39°
- Nov 39° 26°
- Dec 27° 13°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Superior in August?
The normal high is 75°F and the normal low 58°F, for a daily mean of 66.4°F. August is 0.7°F cooler than July and 8.0°F warmer than September. August is the 2nd warmest month of the year in Superior and the 2nd wettest. Across the month the normal high falls 5°F, from 77°F on August 1 to 72°F on August 31. From one year to the next August's mean temperature typically moves about 2.3°F either way (NOAA's standard deviation), so roughly two Augusts in three average between 64°F and 69°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 32%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| August 1 | 77°F | 60°F | 31% | 21% |
| August 8 | 76°F | 59°F | 31% | 21% |
| August 15 | 75°F | 59°F | 31% | 22% |
| August 22 | 74°F | 57°F | 32% | 22% |
| August 31 | 72°F | 55°F | 32% | 22% |
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 | 77°F | 60°F | 31% | 21% | 14 h 50 min |
| August 2 | 77°F | 60°F | 31% | 21% | 14 h 50 min |
| August 3 | 77°F | 60°F | 31% | 21% | 14 h 50 min |
| August 4 | 77°F | 60°F | 31% | 21% | 14 h 50 min |
| August 5 | 77°F | 60°F | 31% | 21% | 14 h 40 min |
| August 6 | 77°F | 60°F | 31% | 21% | 14 h 40 min |
| August 7 | 76°F | 59°F | 31% | 21% | 14 h 40 min |
| August 8 | 76°F | 59°F | 31% | 21% | 14 h 40 min |
| August 9 | 76°F | 59°F | 31% | 21% | 14 h 30 min |
| August 10 | 76°F | 59°F | 31% | 21% | 14 h 30 min |
| August 11 | 76°F | 59°F | 31% | 21% | 14 h 30 min |
| August 12 | 76°F | 59°F | 31% | 21% | 14 h 20 min |
| August 13 | 76°F | 59°F | 31% | 22% | 14 h 20 min |
| August 14 | 75°F | 59°F | 31% | 22% | 14 h 20 min |
| August 15 | 75°F | 59°F | 31% | 22% | 14 h 20 min |
| August 16 | 75°F | 58°F | 31% | 22% | 14 h 10 min |
| August 17 | 75°F | 58°F | 31% | 22% | 14 h 10 min |
| August 18 | 75°F | 58°F | 32% | 22% | 14 h 10 min |
| August 19 | 74°F | 58°F | 32% | 22% | 14 h |
| August 20 | 74°F | 58°F | 32% | 22% | 14 h |
| August 21 | 74°F | 57°F | 32% | 22% | 14 h |
| August 22 | 74°F | 57°F | 32% | 22% | 14 h |
| August 23 | 74°F | 57°F | 32% | 22% | 13 h 50 min |
| August 24 | 73°F | 57°F | 32% | 22% | 13 h 50 min |
| August 25 | 73°F | 57°F | 32% | 22% | 13 h 50 min |
| August 26 | 73°F | 56°F | 32% | 22% | 13 h 40 min |
| August 27 | 73°F | 56°F | 32% | 22% | 13 h 40 min |
| August 28 | 73°F | 56°F | 32% | 22% | 13 h 40 min |
| August 29 | 72°F | 56°F | 32% | 22% | 13 h 30 min |
| August 30 | 72°F | 55°F | 32% | 22% | 13 h 30 min |
| August 31 | 72°F | 55°F | 32% | 22% | 13 h 30 min |
- Normal high
- 75°FAugust average
- Normal low
- 58°FAugust average
- Precipitation
- 3.92 inmonth total
- Days with precipitation
- 100.01 inch or more
- Days at 90°F or more
- 1
- Daylight
- 14 h 50 min to 13 h 30 minAugust 1 to August 31
- Days at 70°F or more
- 22
- Days at 80°F or more
- 9
- Sunshine
- 77%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00478349; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Superior in August?
On a given August day the chance of 0.01 inch or more is 31% on average, highest around August 31 (32%). In all, 3.92 in falls on 10 days of a normal August, 1 of them with an inch or more.
In a normal August in Superior, 1 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00478349.
What are the records for August in Superior?
The warmest August temperature on this station's record (since 1909) is 99°F, on August 24, 1948; the coldest is 31°F, on August 20, 1950. The wettest August brought 8.89 in (2010).
The August mean against the 1991-2020 normal of 66.4°F: 2021 70.6°F (+4.2), 2022 66.6°F (+0.2), 2023 67.2°F (+0.8), 2024 67.4°F (+1.0), 2025 67.8°F (+1.4), 2026 66.6°F (+0.2). 6 of 6 ran warmer than normal.
| August | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 70.6°F | +4.2°F | 1.52 in |
| 2022 | 66.6°F | +0.2°F | 1.75 in |
| 2023 | 67.2°F | +0.8°F | 0.98 in |
| 2024 | 67.4°F | +1.0°F | 3.80 in |
| 2025 | 67.8°F | +1.4°F | 1.59 in |
| 2026 | 66.6°F | +0.2°F | 1.38 in |
Source: records: ACIS, station USC00478349; recent months: ACIS, station USC00478349. Records and recent months use complete months only.
How does August in Superior compare across Wisconsin?
Across the 165 places PlainClimate covers in Wisconsin, August normal highs run from 71°F in Laona to 83°F in Lake Geneva; Superior's is 75°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.