Bloomington weather in October: Bloomington, Illinois: normal highs, lows, rain and records for October
Bloomington in October has a normal high of 63°F and a normal low of 42°F, a daily mean of 52°F, falling from 70°F on the 1st to 56°F by the 31st. Measurable precipitation falls on 10 days in a normal October, 3.45 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 17°C and low of 6°C, 88 mm of precipitation in October.
- NOAA stationBloomington (5 mi W)
- Station IDUSC00110764
- Location40.49°N 89.09°W
- Elevation852 ft (260 m)
- From the center6 miles
- Population79,232
- Jan 31° 16°
- Feb 36° 19°
- Mar 49° 29°
- Apr 62° 39°
- May 72° 50°
- Jun 81° 60°
- Jul 84° 63°
- Aug 83° 61°
- Sep 76° 54°
- Oct 63° 42°
- Nov 48° 30°
- Dec 35° 21°
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 63°F and the normal low 42°F, for a daily mean of 52.4°F. October is 12.8°F cooler than September and 13.5°F warmer than November. October is the 6th warmest month of the year in Bloomington and the 6th wettest. Across the month the normal high falls 14°F, from 70°F on October 1 to 56°F on October 31. From one year to the next October's mean temperature typically moves about 2.3°F either way (NOAA's standard deviation), so roughly two Octobers in three average between 50°F and 55°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 |
|---|---|---|---|---|
| October 1 | 70°F | 48°F | 29% | 20% |
| October 8 | 67°F | 45°F | 30% | 20% |
| October 15 | 63°F | 43°F | 31% | 20% |
| October 22 | 60°F | 40°F | 30% | 20% |
| October 31 | 56°F | 37°F | 28% | 18% |
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 | 70°F | 48°F | 29% | 20% | 11 h 50 min |
| October 2 | 69°F | 48°F | 30% | 20% | 11 h 50 min |
| October 3 | 69°F | 47°F | 30% | 20% | 11 h 40 min |
| October 4 | 68°F | 47°F | 30% | 20% | 11 h 40 min |
| October 5 | 68°F | 46°F | 30% | 20% | 11 h 40 min |
| October 6 | 67°F | 46°F | 30% | 20% | 11 h 40 min |
| October 7 | 67°F | 46°F | 30% | 20% | 11 h 30 min |
| October 8 | 67°F | 45°F | 30% | 20% | 11 h 30 min |
| October 9 | 66°F | 45°F | 30% | 20% | 11 h 30 min |
| October 10 | 66°F | 44°F | 30% | 20% | 11 h 30 min |
| October 11 | 65°F | 44°F | 30% | 20% | 11 h 20 min |
| October 12 | 65°F | 44°F | 30% | 20% | 11 h 20 min |
| October 13 | 64°F | 43°F | 31% | 20% | 11 h 20 min |
| October 14 | 64°F | 43°F | 31% | 20% | 11 h 10 min |
| October 15 | 63°F | 43°F | 31% | 20% | 11 h 10 min |
| October 16 | 63°F | 42°F | 30% | 20% | 11 h 10 min |
| October 17 | 62°F | 42°F | 30% | 20% | 11 h 10 min |
| October 18 | 62°F | 42°F | 30% | 20% | 11 h |
| October 19 | 61°F | 41°F | 30% | 20% | 11 h |
| October 20 | 61°F | 41°F | 30% | 20% | 11 h |
| October 21 | 60°F | 40°F | 30% | 20% | 11 h |
| October 22 | 60°F | 40°F | 30% | 20% | 10 h 50 min |
| October 23 | 59°F | 40°F | 29% | 20% | 10 h 50 min |
| October 24 | 59°F | 39°F | 29% | 20% | 10 h 50 min |
| October 25 | 59°F | 39°F | 29% | 19% | 10 h 50 min |
| October 26 | 58°F | 39°F | 29% | 19% | 10 h 40 min |
| October 27 | 58°F | 38°F | 29% | 19% | 10 h 40 min |
| October 28 | 57°F | 38°F | 28% | 19% | 10 h 40 min |
| October 29 | 57°F | 37°F | 28% | 19% | 10 h 40 min |
| October 30 | 56°F | 37°F | 28% | 19% | 10 h 30 min |
| October 31 | 56°F | 37°F | 28% | 18% | 10 h 30 min |
- Normal high
- 63°FOctober average
- Normal low
- 42°FOctober average
- Precipitation
- 3.45 inmonth total
- Days with precipitation
- 100.01 inch or more
- Nights at 32°F or colder
- 4
- Daylight
- 11 h 50 min to 10 h 30 minOctober 1 to October 31
- Days at 70°F or more
- 11
- Days at 80°F or more
- 3
- Sunshine
- 73%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00110764; 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 30% on average, highest around October 13 (31%). In all, 3.45 in falls on 10 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 USC00110764.
How does October in Bloomington compare across Illinois?
Across the 144 places PlainClimate covers in Illinois, October normal highs run from 60°F in Barrington to 73°F in Anna; Bloomington's is 63°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.