Bloomington weather in August: Bloomington, Indiana: normal highs, lows, rain and records for August
Bloomington in August has a normal high of 84°F and a normal low of 62°F, a daily mean of 73°F, falling from 85°F on the 1st to 83°F by the 31st. Measurable precipitation falls on 11 days in a normal August, 3.34 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 29°C and low of 17°C, 85 mm of precipitation in August.
- NOAA stationBloomington Monroe County Airport
- Station IDUSW00003893
- Location39.13°N 86.62°W
- Elevation844 ft (257 m)
- From the center5 miles
- Population79,986
- Jan 39° 22°
- Feb 43° 25°
- Mar 54° 33°
- Apr 66° 43°
- May 74° 53°
- Jun 82° 62°
- Jul 85° 64°
- Aug 84° 62°
- Sep 78° 55°
- Oct 67° 44°
- Nov 53° 34°
- Dec 42° 27°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Bloomington in August?
The normal high is 84°F and the normal low 62°F, for a daily mean of 73.3°F. August is 1.4°F cooler than July and 6.8°F warmer than September. August is the 2nd warmest month of the year in Bloomington and the 10th wettest. Across the month the normal high falls 2°F, from 85°F on August 1 to 83°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 71°F and 76°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 40%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| August 1 | 85°F | 64°F | 40% | 18% |
| August 8 | 85°F | 63°F | 38% | 16% |
| August 15 | 85°F | 63°F | 37% | 16% |
| August 22 | 84°F | 62°F | 36% | 15% |
| August 31 | 83°F | 60°F | 36% | 15% |
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 | 64°F | 40% | 18% | 14 h 10 min |
| August 2 | 85°F | 64°F | 40% | 18% | 14 h 10 min |
| August 3 | 85°F | 64°F | 39% | 17% | 14 h 10 min |
| August 4 | 85°F | 64°F | 39% | 17% | 14 h 10 min |
| August 5 | 85°F | 64°F | 39% | 17% | 14 h 10 min |
| August 6 | 85°F | 64°F | 39% | 17% | 14 h |
| August 7 | 85°F | 64°F | 39% | 17% | 14 h |
| August 8 | 85°F | 63°F | 38% | 16% | 14 h |
| August 9 | 85°F | 63°F | 38% | 16% | 14 h |
| August 10 | 85°F | 63°F | 38% | 16% | 14 h |
| August 11 | 85°F | 63°F | 38% | 16% | 13 h 50 min |
| August 12 | 85°F | 63°F | 38% | 16% | 13 h 50 min |
| August 13 | 85°F | 63°F | 38% | 16% | 13 h 50 min |
| August 14 | 85°F | 63°F | 38% | 16% | 13 h 50 min |
| August 15 | 85°F | 63°F | 37% | 16% | 13 h 40 min |
| August 16 | 85°F | 63°F | 37% | 16% | 13 h 40 min |
| August 17 | 85°F | 63°F | 37% | 16% | 13 h 40 min |
| August 18 | 85°F | 62°F | 37% | 16% | 13 h 40 min |
| August 19 | 85°F | 62°F | 37% | 16% | 13 h 40 min |
| August 20 | 84°F | 62°F | 37% | 15% | 13 h 30 min |
| August 21 | 84°F | 62°F | 36% | 15% | 13 h 30 min |
| August 22 | 84°F | 62°F | 36% | 15% | 13 h 30 min |
| August 23 | 84°F | 62°F | 36% | 15% | 13 h 30 min |
| August 24 | 84°F | 61°F | 36% | 15% | 13 h 20 min |
| August 25 | 84°F | 61°F | 36% | 15% | 13 h 20 min |
| August 26 | 84°F | 61°F | 36% | 15% | 13 h 20 min |
| August 27 | 84°F | 61°F | 36% | 15% | 13 h 20 min |
| August 28 | 83°F | 60°F | 35% | 15% | 13 h 10 min |
| August 29 | 83°F | 60°F | 35% | 15% | 13 h 10 min |
| August 30 | 83°F | 60°F | 36% | 15% | 13 h 10 min |
| August 31 | 83°F | 60°F | 36% | 15% | 13 h 10 min |
- Normal high
- 84°FAugust average
- Normal low
- 62°FAugust average
- Precipitation
- 3.34 inmonth total
- Days with precipitation
- 110.01 inch or more
- Days at 90°F or more
- 6
- Daylight
- 14 h 10 min to 13 h 10 minAugust 1 to August 31
- Days at 70°F or more
- 31
- Days at 80°F or more
- 27
- Sunshine
- 81%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00003893; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Bloomington in August?
On a given August day the chance of 0.01 inch or more is 37% on average, highest around August 1 (40%). In all, 3.34 in falls on 11 days of a normal August, 1 of them with an inch or more.
In a normal August in Bloomington, 6 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00003893.
What are the records for August in Bloomington?
The warmest August temperature on this station's record (since 1998) is 101°F, on August 22, 2007; the coldest is 44°F, on August 12, 2004. The wettest August brought 7.34 in (2016).
The August mean against the 1991-2020 normal of 73.3°F: 2021 76.1°F (+2.8), 2022 75.3°F (+2.0), 2023 73.3°F (at normal), 2024 74.3°F (+1.0), 2025 72.9°F (−0.4), 2026 73.9°F (+0.6). 4 of 6 ran warmer than normal.
| August | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 76.1°F | +2.8°F | 1.36 in |
| 2022 | 75.3°F | +2.0°F | 1.42 in |
| 2023 | 73.3°F | at normal | 3.84 in |
| 2024 | 74.3°F | +1.0°F | 2.33 in |
| 2025 | 72.9°F | −0.4°F | 1.20 in |
| 2026 | 73.9°F | +0.6°F | 5.15 in |
Source: records: ACIS, station USW00003893; recent months: ACIS, station USW00003893. Records and recent months use complete months only.
How does August in Bloomington compare across Indiana?
Across the 99 places PlainClimate covers in Indiana, August normal highs run from 80°F in Angola to 88°F in English; Bloomington's is 84°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.