Jacksonville weather in February

In February, Jacksonville sees average daytime highs of 41°F and overnight lows near 24°F, with 2.2 in of precipitation across 7.2 wet days and about 10.4 hours of daylight. It is the 10th-warmest and 12th-wettest month of the year here.

Highs climb over the month, from about 37°F in the first days to 45°F by the end. The sky is clear or mostly clear about 27% of the time in February, and the air most often feels dry.

Daylight stretches from about 9 h 54 min at the start of February to 11 hours by month's end. Set against the rest of the year, February is Jacksonville's 11th-clearest and 5th-windiest month. For the whole year in context, see Jacksonville's year-round climate.

Daytime high
41°
10th warmest
Overnight low
24°
2nd coldest
Precipitation
2.2 in
7.2 wet days
Daylight
10 h 24 min
7:02 AM – 5:29 PM
Cloud cover
65%
11th clearest
Wind
9 mph
5th windiest
Solar energy
3.07 kWh/m²
Travel score
0.3
out of 10

Jacksonville is city in Morgan County, Illinois, United States.

Density
691/km²
people per km²
Founded
1825

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

Temperature in February

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 37°F in the first days to 45°F by the end.

A typical February day in Jacksonville reaches about 41°F in the afternoon and slips back to 24°F overnight — a 16°F spread between the day's warmth and the night's chill. On most days the high lands between 25°F and 58°F. Set against its neighbours, February runs about 5°F warmer than January and about 12°F cooler than March.

20°40°60°151015202528
Avg high (°F)Avg low (°F)
13721
23722
33722
43722
53822
63822
73822
83822
93923
103923
113923
124023
134024
144024
154124
164125
174125
184225
194226
204226
214326
224326
234427
244427
254427
264527
274528
284528

How February really feels in Jacksonville

Once humidity and wind are folded in, February averages 0 days that feel above 90°F and 28 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
28
12 feel bitter (≤ 14°F)

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

Jacksonville weather by month

How February compares with the rest of the year at a glance. February is the 10th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan36° / 21°2.37.749.50.0
Feb41° / 24°2.27.23.410.40.3
Mar52° / 34°3.110.31.611.72.8
Apr64° / 45°4.611.50.4135.4
May74° / 55°4.413.4014.26.2
Jun82° / 65°4.111.1014.85.8
Jul85° / 68°3.39.5014.55.3
Aug84° / 66°3.09013.65.7
Sep78° / 58°2.97.5012.37.3
Oct66° / 46°3.08.30.110.96.3
Nov52° / 35°3.28.20.99.82.8
Dec40° / 26°2.37.42.79.20.2

Cloud cover in February

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in February.

Beyond those clear spells, partly cloudy skies cover about 10% of February, with mostly cloudy or overcast conditions the remaining 63%.

0%25%50%75%100%151015202528
Clearer (%)Cloudier (%)
13763
23763
33862
43862
53862
63763
73763
83763
93763
103763
113664
123664
133664
143664
153664
163664
173664
183664
193862
203763
213763
223763
233763
243763
253763
263862
273961
283961

Chance of precipitation in February

Any precipitationSnow

Jacksonville gets around 2.2 in of rain and snow over 7.2 wet days in February, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 26% and peaks near 31% on the wettest days, and about 3 days bring snow. The odds climb toward the end of the month.

0%10%20%30%40%151015202528
Rain chance (%)Snow chance (%)
12213
22213
32213
42113
52113
62112
72212
82212
92212
102312
112312
122412
132412
142511
152611
162611
172712
182812
192812
202912
213012
223012
233012
243112
253112
263111
273111
283111

Humidity in February

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, February lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202528
Dry (%)Comfortable (%)
11000
21000
31000
41000
51000
61000
71000
81000
91000
101000
111000
121000
131000
141000
151000
161000
171000
181000
191000
20991
21991
22991
23991
24991
25991
26991
27991
28991

Wind in February

Winds average 9 mph in February.

Across February, daily wind ranges from about 8 mph on the calmest days to 9 mph at its breeziest. It stays fairly steady from day to day.

051015151015202528
Wind speed (mph)Feels
18light breeze
28light breeze
38light breeze
48light breeze
58light breeze
68light breeze
78light breeze
89light breeze
99light breeze
109light breeze
119light breeze
129light breeze
139light breeze
149light breeze
159light breeze
169light breeze
179light breeze
189light breeze
199light breeze
209light breeze
219light breeze
229light breeze
239light breeze
249light breeze
259light breeze
269light breeze
279light breeze
289light breeze

Sunrise & sunset in February

DaylightNight

Daylight runs from about 9 h 54 min at the start of February to 11 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 66 minutes over February. Sunrise moves from 7:16 AM to 6:45 AM, and sunset from 5:12 PM to 5:44 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202528
Daylight (h)Sunrise (AM)Sunset (PM)
19.97:165:12
210.07:165:14
310.07:155:15
410.07:145:16
510.17:135:17
610.17:125:18
710.17:115:19
810.27:105:21
910.27:095:22
1010.27:085:23
1110.37:075:24
1210.37:065:25
1310.47:055:26
1410.47:035:28
1510.47:025:29
1610.57:015:30
1710.57:005:31
1810.66:595:32
1910.66:575:33
2010.66:565:35
2110.76:555:36
2210.76:535:37
2310.86:525:38
2410.86:515:39
2510.86:495:40
2610.96:485:41
2710.96:465:42
2811.06:455:44

Solar energy in February

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in February, about 3.07 kWh/m².

For context, solar energy here swings from a low near 1.84 kWh/m² to a high of 6.46 kWh/m² in June across the year — February's 3.07 kWh/m² falls in the middle.

01234151015202528
Solar energy (kWh/m²)Level
12.6Moderate
22.6Moderate
32.7Moderate
42.7Moderate
52.7Moderate
62.8Moderate
72.8Moderate
82.8Moderate
92.9Moderate
102.9Moderate
112.9Moderate
123.0Moderate
133.0Moderate
143.0Moderate
153.1Moderate
163.1Moderate
173.1Moderate
183.2Moderate
193.2Moderate
203.3Moderate
213.3Moderate
223.3Moderate
233.4Moderate
243.4Moderate
253.5Moderate
263.5Moderate
273.6Moderate
283.6Moderate
Planning a trip in February

Is February a good time to visit Jacksonville?

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

0.3
Sightseeing
10th-best month of the year
0.0
Beach & pool
10th-best month of the year

February is a weaker month for outdoor sightseeing in Jacksonville.

What to pack for Jacksonville in February

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

In February, Jacksonville sees daytime highs around 41°F and nights near 24°F. Pack a warm layer and a heavy coat. About 7 days see rain.

a warm layera heavy coat

UV index in Jacksonville in February

LowModerateHighVery highExtreme

Clear-sky midday UV in February peaks around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Jacksonville peaks around June 21 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateJun 21UV 9Dec 22UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun9Very high
Jul9Very high
Aug8Very high
Sep7High
Oct4Moderate
Nov3Moderate
Dec2Low

Air quality in Jacksonville in February

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Jacksonville is worst in July — around 16 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (October, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodModerateGoodJul 1716 µg/m³Oct 238 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb13Moderate
Mar12Moderate
Apr11Good
May14Moderate
Jun14Moderate
Jul16Moderate
Aug14Moderate
Sep11Good
Oct8Good
Nov8Good
Dec9Good
Location & terrain

Where is Jacksonville?

Jacksonville sits at 39.7°N, 90.2°W, 610 ft above sea level, in United States. The nearest listed city is Springfield, 32 mi away.

Topography around Jacksonville

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

Within 2 miles, the terrain around Jacksonville has only modest variations in elevation — a maximum elevation change of 177 ft around an average of 604 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 243 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 604 ft.

The land around Jacksonville is covered by trees (32%), grassland (25%) and cropland (23%) within 2 miles, cropland (74%) within 10 miles, and cropland (65%) and trees (27%) within 50 miles.

2 miles
177 ft
10 miles
243 ft
50 miles
604 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
February weather nearby: Springfield 32 mi · Godfrey 54 mi · Macomb 55 mi · Upper Alton 57 mi · Alton 58 mi · Hannibal 60 mi · Old Jamestown 62 mi · Quincy 64 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 Jacksonville (39.7339°, -90.229°, elevation 610 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. 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).