Bloomington weather in October: Bloomington, Indiana: normal highs, lows, rain and records for October
Bloomington in October has a normal high of 67°F and a normal low of 44°F, a daily mean of 55°F, falling from 73°F on the 1st to 60°F by the 31st. Measurable precipitation falls on 11 days in a normal October, 3.70 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 19°C and low of 7°C, 94 mm of precipitation in October.
- 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 October?
The normal high is 67°F and the normal low 44°F, for a daily mean of 55.3°F. October is 11.2°F cooler than September and 11.6°F warmer than November. October is the 6th warmest month of the year in Bloomington and the 7th wettest. Across the month the normal high falls 13°F, from 73°F on October 1 to 60°F on October 31. From one year to the next October's mean temperature typically moves about 2.4°F either way (NOAA's standard deviation), so roughly two Octobers in three average between 53°F and 58°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 37%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| October 1 | 73°F | 49°F | 37% | 18% |
| October 8 | 70°F | 47°F | 36% | 18% |
| October 15 | 67°F | 44°F | 36% | 19% |
| October 22 | 64°F | 42°F | 35% | 19% |
| October 31 | 60°F | 39°F | 34% | 19% |
Every day of October: normal high, low and chance of precipitation (warmest afternoon October 1, coldest night October 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| October 1 | 73°F | 49°F | 37% | 18% | 11 h 50 min |
| October 2 | 73°F | 49°F | 37% | 18% | 11 h 50 min |
| October 3 | 72°F | 48°F | 37% | 18% | 11 h 40 min |
| October 4 | 72°F | 48°F | 37% | 18% | 11 h 40 min |
| October 5 | 71°F | 48°F | 37% | 18% | 11 h 40 min |
| October 6 | 71°F | 47°F | 36% | 18% | 11 h 40 min |
| October 7 | 71°F | 47°F | 36% | 18% | 11 h 30 min |
| October 8 | 70°F | 47°F | 36% | 18% | 11 h 30 min |
| October 9 | 70°F | 46°F | 36% | 18% | 11 h 30 min |
| October 10 | 69°F | 46°F | 36% | 19% | 11 h 30 min |
| October 11 | 69°F | 46°F | 36% | 19% | 11 h 20 min |
| October 12 | 69°F | 45°F | 36% | 19% | 11 h 20 min |
| October 13 | 68°F | 45°F | 36% | 19% | 11 h 20 min |
| October 14 | 68°F | 44°F | 36% | 19% | 11 h 20 min |
| October 15 | 67°F | 44°F | 36% | 19% | 11 h 10 min |
| October 16 | 67°F | 44°F | 36% | 19% | 11 h 10 min |
| October 17 | 67°F | 43°F | 36% | 19% | 11 h 10 min |
| October 18 | 66°F | 43°F | 36% | 19% | 11 h 10 min |
| October 19 | 66°F | 43°F | 35% | 19% | 11 h |
| October 20 | 65°F | 42°F | 35% | 19% | 11 h |
| October 21 | 65°F | 42°F | 35% | 19% | 11 h |
| October 22 | 64°F | 42°F | 35% | 19% | 11 h |
| October 23 | 64°F | 41°F | 35% | 19% | 11 h |
| October 24 | 64°F | 41°F | 35% | 19% | 10 h 50 min |
| October 25 | 63°F | 41°F | 34% | 19% | 10 h 50 min |
| October 26 | 63°F | 40°F | 34% | 19% | 10 h 50 min |
| October 27 | 62°F | 40°F | 34% | 19% | 10 h 50 min |
| October 28 | 62°F | 40°F | 34% | 19% | 10 h 40 min |
| October 29 | 61°F | 39°F | 34% | 19% | 10 h 40 min |
| October 30 | 61°F | 39°F | 34% | 19% | 10 h 40 min |
| October 31 | 60°F | 39°F | 34% | 19% | 10 h 40 min |
- Normal high
- 67°FOctober average
- Normal low
- 44°FOctober average
- Precipitation
- 3.70 inmonth total
- Days with precipitation
- 110.01 inch or more
- Nights at 32°F or colder
- 4
- Daylight
- 11 h 50 min to 10 h 40 minOctober 1 to October 31
- Days at 70°F or more
- 13
- Days at 80°F or more
- 4
- Sunshine
- 73%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 October?
On a given October day the chance of 0.01 inch or more is 35% on average, highest around October 1 (37%). In all, 3.70 in falls on 11 days of a normal October, 1 of them with an inch or more.
In a normal October in Bloomington, 4 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00003893.
What are the records for October in Bloomington?
The warmest October temperature on this station's record (since 1998) is 93°F, on October 1, 2019; the coldest is 22°F, on October 31, 2023. The wettest October brought 8.19 in (2001).
The October mean against the 1991-2020 normal of 55.3°F: 2021 61.6°F (+6.3), 2023 57.3°F (+2.0), 2024 58.7°F (+3.4), 2025 58.6°F (+3.3). 4 of 4 ran warmer than normal.
| October | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 61.6°F | +6.3°F | 5.88 in |
| 2023 | 57.3°F | +2.0°F | 2.01 in |
| 2024 | 58.7°F | +3.4°F | 0.29 in |
| 2025 | 58.6°F | +3.3°F | 3.12 in |
Source: records: ACIS, station USW00003893; recent months: ACIS, station USW00003893. Records and recent months use complete months only.
How does October in Bloomington compare across Indiana?
Across the 99 places PlainClimate covers in Indiana, October normal highs run from 61°F in Angola to 71°F in St. Meinrad; Bloomington's is 67°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Bloomington in September78°F by day, 55°F at night
- Bloomington in November53°F by day, 34°F at night
- Bloomington through the yearEvery month, frost dates, records and recent years
- Indiana in OctoberThe statewide normal and the warmest and coolest places
- St. Meinrad: Indiana's warmest Octobernormal high 71°F