Decatur weather in November

In November, Decatur sees average daytime highs of 51°F and overnight lows near 35°F, with 3.5 in of precipitation across 8.7 wet days and about 9.8 hours of daylight. It is the 9th-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 57°F in the first days to 46°F by the end. The sky is clear or mostly clear about 32% of the time in November, and the air most often feels dry.

Daylight stretches from about 10 h 18 min at the start of November to 9 h 24 min by month's end. Set against the rest of the year, November is Decatur's 6th-clearest and 2nd-windiest month. For the whole year in context, see Decatur's year-round climate.

Daytime high
51°
9th warmest
Overnight low
35°
5th coldest
Precipitation
3.5 in
8.7 wet days
Daylight
9 h 48 min
6:48 AM – 4:34 PM
Cloud cover
59%
6th clearest
Wind
10 mph
2nd windiest
Solar energy
2.27 kWh/m²
Travel score
2.7
out of 10

Decatur is city in Macon County, Illinois, United States.

Density
602/km²
people per km²
Founded
1823

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in November

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 57°F in the first days to 46°F by the end.

A typical November day in Decatur reaches about 51°F in the afternoon and slips back to 35°F overnight — a 16°F spread between the day's warmth and the night's chill. On most days the high lands between 37°F and 66°F. Set against its neighbours, November runs about 14°F cooler than October and about 11°F warmer than December.

20°40°60°80°151015202530
Avg high (°F)Avg low (°F)
15840
25740
35739
45639
55638
65538
75538
85437
95437
105437
115336
125336
135236
145235
155135
165135
175134
185034
195034
205034
214933
224933
234933
244832
254832
264732
274731
284631
294631
304630

How November really feels in Decatur

Once humidity and wind are folded in, November averages 0 days that feel above 90°F and 26 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
26
wind chill below the day's low

The story in November is cold — wind chill drags the overnight "feels like" below the raw low.

Decatur weather by month

How November compares with the rest of the year at a glance. November is the 9th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan36° / 21°2.78.549.50.0
Feb40° / 24°2.37.53.410.40.2
Mar52° / 34°3.39.71.511.72.7
Apr64° / 44°4.611.80.3135.3
May73° / 55°4.813.2014.26.2
Jun82° / 64°4.310.9014.86.0
Jul84° / 67°3.610.3014.55.5
Aug83° / 65°3.08.5013.66.1
Sep78° / 57°3.27.4012.37.3
Oct65° / 46°3.58.60.110.96.2
Nov51° / 35°3.58.70.89.82.7
Dec40° / 26°2.58.72.99.20.2

Cloud cover in November

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% of the time in November.

Beyond those clear spells, partly cloudy skies cover about 13% of November, with mostly cloudy or overcast conditions the remaining 55%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14555
24555
34555
44654
54654
64654
74852
84852
94852
104852
114951
124852
134852
144753
154753
164852
174753
184753
194654
204654
214456
224456
234357
244258
254258
264159
274159
284060
293961
304060

Chance of precipitation in November

Any precipitationSnow

Decatur gets around 3.5 in of rain and snow over 8.7 wet days in November. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 29% and peaks near 30% on the wettest days, and about 1 day brings snow.

0%10%20%30%40%151015202530
Rain chance (%)Snow chance (%)
1301
2301
3291
4292
5292
6282
7282
8282
9272
10272
11273
12273
13273
14273
15273
16273
17283
18283
19293
20293
21293
22303
23303
24304
25304
26305
27305
28306
29306
30297

Humidity in November

DryComfortableHumidMuggyOppressiveMiserable

Most of November feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, November lands in the dry band about 96% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
19181
29271
39271
49271
59361
69460
79550
89550
99640
109640
119730
129730
139730
149820
159820
169820
179820
189910
199910
209910
219910
229910
239910
249820
259820
269820
279820
289820
299820
309820

Wind in November

Winds average 10 mph in November.

Across November, daily wind ranges from about 9 mph on the calmest days to 10 mph at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (mph)Feels
19light breeze
29light breeze
39light breeze
49light breeze
59light breeze
69light breeze
79light breeze
89light breeze
99light breeze
109light breeze
119light breeze
1210light breeze
1310light breeze
1410light breeze
1510light breeze
1610light breeze
1710light breeze
1810light breeze
1910light breeze
2010light breeze
2110light breeze
2210light breeze
2310light breeze
2410light breeze
2510light breeze
2610light breeze
2710light breeze
2810light breeze
2910light breeze
309light breeze

Sunrise & sunset in November

DaylightNight

Daylight runs from about 10 h 18 min at the start of November to 9 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 54 minutes over November. Sunrise moves from 6:31 AM to 7:03 AM, and sunset from 4:48 PM to 4:27 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
110.36:314:48
210.26:324:47
310.26:334:46
410.26:344:45
510.16:364:43
610.16:374:42
710.16:384:42
810.06:394:41
910.06:404:40
1010.06:414:39
119.96:424:38
129.96:444:37
139.96:454:36
149.86:464:35
159.86:474:35
169.86:484:34
179.76:494:33
189.76:504:33
199.76:524:32
209.66:534:31
219.66:544:31
229.66:554:30
239.66:564:30
249.56:574:29
259.56:584:29
269.56:594:29
279.57:004:28
289.47:014:28
299.47:024:28
309.47:034:27

Solar energy in November

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in November, about 2.27 kWh/m².

For context, solar energy here swings from a low near 1.8 kWh/m² to a high of 6.44 kWh/m² in June across the year — November's 2.27 kWh/m² sits near the bottom.

0123151015202530
Solar energy (kWh/m²)Level
12.7Moderate
22.7Moderate
32.6Moderate
42.6Moderate
52.6Moderate
62.5Moderate
72.5Moderate
82.5Moderate
92.5Moderate
102.4Moderate
112.4Moderate
122.4Moderate
132.4Moderate
142.3Moderate
152.3Moderate
162.3Moderate
172.2Moderate
182.2Moderate
192.2Moderate
202.1Moderate
212.1Moderate
222.1Moderate
232.1Moderate
242.0Moderate
252.0Moderate
262.0Moderate
272.0Dim
282.0Dim
291.9Dim
301.9Dim
Planning a trip in November

Hazard calendar for Decatur

In seasonPeak

In November, Decatur sits inside its atlantic hurricane season. The full year is below, with each hazard's peak months called out.

Decatur sits in the Atlantic hurricane belt; the season peaks August–October.

Atlantic hurricane
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is November a good time to visit Decatur?

Our two travel scores rate November for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

2.7
Sightseeing
8th-best month of the year
0.0
Beach & pool
9th-best month of the year

November is a weaker month for outdoor sightseeing in Decatur.

What to pack for Decatur in November

From November's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In November, Decatur sees daytime highs around 51°F and nights near 35°F. Pack a warm layer. Worth having: rain gear. About 9 days see rain.

a warm layerrain gear

UV index in Decatur in November

LowModerateHighVery highExtreme

Clear-sky midday UV in November peaks around 3. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Decatur peaks around June 22 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJun 22UV 9Jan 1UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun9Very high
Jul9Very high
Aug8Very high
Sep6High
Oct4Moderate
Nov3Moderate
Dec2Low

Air quality in Decatur in November

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where November falls, not just the annual average.

Air quality in Decatur is worst in July — around 17 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (October, 8 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodModerateGoodJul 1716 µg/m³Oct 228 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb13Moderate
Mar12Moderate
Apr11Good
May14Moderate
Jun14Moderate
Jul17Moderate
Aug15Moderate
Sep12Good
Oct8Good
Nov8Good
Dec9Good
Location & terrain

Where is Decatur?

Decatur sits at 39.8°N, 89.0°W, 673 ft above sea level, in United States. The nearest listed city is Springfield, 37 mi away.

Topography around Decatur

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Decatur.

Within 2 miles, the terrain around Decatur has only modest variations in elevation — a maximum elevation change of 164 ft around an average of 666 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 197 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 489 ft.

The land around Decatur is covered by trees (43%) and artificial surfaces (34%) within 2 miles, cropland (68%) within 10 miles, and cropland (83%) within 50 miles.

2 miles
164 ft
10 miles
197 ft
50 miles
489 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
November weather nearby: Springfield 37 mi · Mattoon 40 mi · Champaign 42 mi · Urbana 43 mi · Bloomington 45 mi · Normal 47 mi · Charleston 48 mi · Morton 60 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Decatur (39.8403°, -88.9548°, elevation 673 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).