Decatur weather in November: Decatur, Illinois: normal highs, lows, rain and records for November
Decatur in November has a normal high of 51°F and a normal low of 34°F, a daily mean of 43°F, falling from 58°F on the 1st to 45°F by the 30th. Measurable precipitation falls on 9 days in a normal November, 2.97 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 11°C and low of 1°C, 75 mm of precipitation in November.
- NOAA stationDecatur Airport
- Station IDUSW00003887
- Location39.83°N 88.87°W
- Elevation675 ft (206 m)
- From the center4 miles
- Population68,763
- Jan 35° 20°
- Feb 40° 23°
- Mar 52° 32°
- Apr 64° 42°
- May 74° 53°
- Jun 83° 62°
- Jul 86° 66°
- Aug 84° 63°
- Sep 79° 55°
- Oct 66° 44°
- Nov 51° 34°
- Dec 40° 25°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Decatur in November?
The normal high is 51°F and the normal low 34°F, for a daily mean of 42.7°F. November is 12.5°F cooler than October and 10.3°F warmer than December. November is the 8th warmest month of the year in Decatur and the 8th wettest. Across the month the normal high falls 13°F, from 58°F on November 1 to 45°F on November 30. From one year to the next November's mean temperature typically moves about 4.3°F either way (NOAA's standard deviation), so roughly two Novembers in three average between 38°F and 47°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 |
|---|---|---|---|---|
| November 1 | 58°F | 39°F | 31% | 17% |
| November 8 | 55°F | 37°F | 30% | 17% |
| November 15 | 51°F | 34°F | 31% | 17% |
| November 22 | 48°F | 32°F | 31% | 17% |
| November 30 | 45°F | 29°F | 31% | 17% |
Every day of November: normal high, low and chance of precipitation (warmest afternoon November 1, coldest night November 30)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| November 1 | 58°F | 39°F | 31% | 17% | 10 h 30 min |
| November 2 | 58°F | 39°F | 31% | 17% | 10 h 30 min |
| November 3 | 57°F | 39°F | 31% | 17% | 10 h 30 min |
| November 4 | 57°F | 38°F | 31% | 17% | 10 h 20 min |
| November 5 | 56°F | 38°F | 31% | 17% | 10 h 20 min |
| November 6 | 56°F | 38°F | 31% | 17% | 10 h 20 min |
| November 7 | 55°F | 37°F | 31% | 17% | 10 h 20 min |
| November 8 | 55°F | 37°F | 30% | 17% | 10 h 20 min |
| November 9 | 54°F | 36°F | 30% | 17% | 10 h 10 min |
| November 10 | 54°F | 36°F | 30% | 17% | 10 h 10 min |
| November 11 | 53°F | 36°F | 30% | 17% | 10 h 10 min |
| November 12 | 53°F | 35°F | 30% | 17% | 10 h 10 min |
| November 13 | 52°F | 35°F | 30% | 17% | 10 h 10 min |
| November 14 | 52°F | 35°F | 30% | 17% | 10 h |
| November 15 | 51°F | 34°F | 31% | 17% | 10 h |
| November 16 | 51°F | 34°F | 31% | 17% | 10 h |
| November 17 | 51°F | 34°F | 31% | 17% | 10 h |
| November 18 | 50°F | 33°F | 31% | 17% | 10 h |
| November 19 | 50°F | 33°F | 31% | 17% | 9 h 50 min |
| November 20 | 49°F | 33°F | 31% | 17% | 9 h 50 min |
| November 21 | 49°F | 32°F | 31% | 17% | 9 h 50 min |
| November 22 | 48°F | 32°F | 31% | 17% | 9 h 50 min |
| November 23 | 48°F | 32°F | 31% | 17% | 9 h 50 min |
| November 24 | 47°F | 31°F | 31% | 17% | 9 h 50 min |
| November 25 | 47°F | 31°F | 31% | 17% | 9 h 40 min |
| November 26 | 47°F | 31°F | 31% | 17% | 9 h 40 min |
| November 27 | 46°F | 30°F | 31% | 17% | 9 h 40 min |
| November 28 | 46°F | 30°F | 31% | 17% | 9 h 40 min |
| November 29 | 45°F | 30°F | 31% | 17% | 9 h 40 min |
| November 30 | 45°F | 29°F | 31% | 17% | 9 h 40 min |
- Normal high
- 51°FNovember average
- Normal low
- 34°FNovember average
- Precipitation
- 2.97 inmonth total
- Days with precipitation
- 90.01 inch or more
- Nights at 32°F or colder
- 14
- Daylight
- 10 h 30 min to 9 h 40 minNovember 1 to November 30
- Days at 70°F or more
- 2
- Sunshine
- 70%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00003887; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Decatur in November?
On a given November day the chance of 0.01 inch or more is 31% on average, highest around November 25 (31%). In all, 2.97 in falls on 9 days of a normal November, 1 of them with an inch or more.
In a normal November in Decatur, 14 nights fall to freezing and 1 days stay below freezing all day.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00003887.
How humid and windy is Decatur in November?
At 3 p.m. the normal temperature is 43°F with 64% relative humidity and a dew point of 31°F; at 6 a.m. it is 34°F with 82% humidity. The wind averages 10.9 mph, most often from the southwest in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 34°F | 29°F | 82% | 10.1 mph | 53% |
| 9 a.m. | 36°F | 30°F | 78% | 11.6 mph | 48% |
| noon | 42°F | 31°F | 67% | 12.7 mph | 50% |
| 3 p.m. | 43°F | 31°F | 64% | 12.5 mph | 46% |
| 6 p.m. | 39°F | 31°F | 73% | 10.3 mph | 55% |
| 9 p.m. | 37°F | 30°F | 77% | 10.5 mph | 56% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00003887. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for November in Decatur?
The warmest November temperature on this station's record (since 2000) is 80°F, on November 1, 2016; the coldest is 5°F, on November 12, 2019. The wettest November brought 6.51 in (2024).
The November mean against the 1991-2020 normal of 42.7°F: 2021 40.9°F (−1.8), 2022 43.1°F (+0.4), 2023 44.2°F (+1.5), 2024 47.1°F (+4.4), 2025 43.3°F (+0.6). 4 of 5 ran warmer than normal.
| November | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 40.9°F | −1.8°F | 0.86 in |
| 2022 | 43.1°F | +0.4°F | 1.76 in |
| 2023 | 44.2°F | +1.5°F | 0.94 in |
| 2024 | 47.1°F | +4.4°F | 6.51 in |
| 2025 | 43.3°F | +0.6°F | 1.37 in |
Source: records: ACIS, station USW00003887; recent months: ACIS, station USW00003887. Records and recent months use complete months only.
How does November in Decatur compare across Illinois?
Across the 144 places PlainClimate covers in Illinois, November normal highs run from 46°F in Galena to 59°F in Anna; Decatur's is 51°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.