Seymour weather in January

In January, Seymour sees average daytime highs of 39°F and overnight lows near 25°F, with 3.3 in of precipitation across 9.3 wet days and about 9.6 hours of daylight. It is the 12th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 39°F through the month. The sky is clear or mostly clear about 23% of the time in January, and the air most often feels dry.

Daylight stretches from about 9 h 18 min at the start of January to 10 hours by month's end. Set against the rest of the year, January is Seymour's 11th-clearest and 2nd-windiest month. For the whole year in context, see Seymour's year-round climate.

Daytime high
39°
12th warmest
Overnight low
25°
1st coldest
Precipitation
3.3 in
9.3 wet days
Daylight
9 h 30 min
8:06 AM – 5:39 PM
Cloud cover
70%
11th clearest
Wind
8 mph
2nd windiest
Solar energy
2.04 kWh/m²
Travel score
0.0
out of 10

Seymour is city in Indiana, United States.

Density
629/km²
people per km²
Founded
1852

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

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 39°F through the month.

A typical January day in Seymour reaches about 39°F in the afternoon and slips back to 25°F overnight — a 14°F spread between the day's warmth and the night's chill. On most days the high lands between 24°F and 55°F. Set against its neighbours, January runs about 4°F cooler than December and about 4°F cooler than February.

20°40°60°151015202531
Avg high (°F)Avg low (°F)
14027
24027
34027
44026
54026
64026
74026
84026
93926
103925
113925
123925
133925
143925
153924
163824
173824
183824
193824
203824
213824
223824
233824
243824
253924
263924
273924
283924
293924
304024
314025

How January really feels in Seymour

Once humidity and wind are folded in, January averages 0 days that feel above 90°F and 31 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
31
wind chill below the day's low

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

Seymour weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan39° / 25°3.39.33.49.60.0
Feb43° / 27°3.08.43.410.50.6
Mar53° / 36°4.2111.711.73.0
Apr65° / 46°4.912.50.2135.5
May74° / 56°5.112.7014.16.3
Jun82° / 65°4.211.6014.75.7
Jul86° / 68°3.511.4014.55.0
Aug84° / 66°3.19.3013.55.6
Sep79° / 59°2.98.1012.37.0
Oct66° / 47°3.28.10116.3
Nov53° / 37°3.49.10.89.93.1
Dec43° / 29°3.69.92.99.30.5

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 23% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 10% of January, with mostly cloudy or overcast conditions the remaining 67%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13268
23268
33268
43268
53169
63070
73070
83070
93070
103070
113070
123070
133070
143070
153169
163169
173169
183268
193268
203466
213466
223466
233466
243664
253664
263664
273565
283664
293763
303763
313664

Chance of precipitation in January

Any precipitationSnow

Seymour gets around 3.3 in of rain and snow over 9.3 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 30% and peaks near 32% on the wettest days, and about 3 days bring snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
13111
23111
33111
43211
53211
63211
73211
83211
93211
103211
113211
123211
133211
143211
153211
163111
173111
183111
193011
203011
212911
222912
232812
242812
252812
262712
272712
282712
292713
302713
312713

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the dry band about 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1982
2982
3982
4982
5982
6982
7982
8982
9982
10982
11982
12991
13991
14991
15991
16991
17991
18991
191000
201000
211000
221000
231000
241000
251000
261000
27991
28991
29991
30991
31991

Wind in January

Winds average 8 mph in January.

Across January, daily wind ranges from about 7 mph on the calmest days to 8 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
18light breeze
28light breeze
38light breeze
48light breeze
58light breeze
68light breeze
78light breeze
88light breeze
98light breeze
108light breeze
118light breeze
128light breeze
138light breeze
148light breeze
158light breeze
168light breeze
178light breeze
188light breeze
198light breeze
208light breeze
218light breeze
228light breeze
238light breeze
248light breeze
257light breeze
267light breeze
277light breeze
287light breeze
297calm
307calm
317calm

Sunrise & sunset in January

DaylightNight

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

Days grow by about 42 minutes over January. Sunrise moves from 8:07 AM to 7:58 AM, and sunset from 5:26 PM to 5:56 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.38:075:26
29.38:085:27
39.38:085:28
49.38:085:28
59.48:085:29
69.48:085:30
79.48:085:31
89.48:085:32
99.48:085:33
109.48:085:34
119.48:085:34
129.58:075:35
139.58:075:36
149.58:075:37
159.58:075:38
169.58:065:39
179.68:065:40
189.68:065:41
199.68:055:42
209.68:055:43
219.78:045:45
229.78:045:46
239.78:035:47
249.78:035:48
259.88:025:49
269.88:025:50
279.88:015:51
289.98:005:52
299.98:005:53
309.97:595:54
3110.07:585:56

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.04 kWh/m².

For context, solar energy here swings from a low near 1.73 kWh/m² to a high of 6.23 kWh/m² in June across the year — January's 2.04 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
11.8Dim
21.8Dim
31.8Dim
41.8Dim
51.8Dim
61.8Dim
71.8Dim
81.8Dim
91.9Dim
101.9Dim
111.9Dim
121.9Dim
131.9Dim
142.0Dim
152.0Dim
162.0Moderate
172.0Moderate
182.1Moderate
192.1Moderate
202.1Moderate
212.2Moderate
222.2Moderate
232.2Moderate
242.3Moderate
252.3Moderate
262.3Moderate
272.4Moderate
282.4Moderate
292.4Moderate
302.5Moderate
312.5Moderate
Planning a trip in January

Is January a good time to visit Seymour?

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

0.0
Sightseeing
12th-best month of the year
0.0
Beach & pool
10th-best month of the year

January is a weaker month for outdoor sightseeing in Seymour.

What to pack for Seymour in January

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

In January, Seymour sees daytime highs around 39°F and nights near 25°F. Pack a warm layer and a heavy coat. Worth having: rain gear. About 9 days see rain.

a warm layera heavy coatrain gear

UV index in Seymour in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Seymour peaks around June 23 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 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 highHighModerateJun 23UV 9Dec 23UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May7Very high
Jun9Very high
Jul9Very high
Aug8Very high
Sep6High
Oct3Moderate
Nov3Moderate
Dec2Low

Air quality in Seymour in January

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Seymour is worst in July — around 17 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (October, 7 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1316 µg/m³Oct 237 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb11Good
Mar11Good
Apr11Good
May13Moderate
Jun15Moderate
Jul17Moderate
Aug13Moderate
Sep10Good
Oct7Good
Nov7Good
Dec8Good
Location & terrain

Where is Seymour?

Seymour sits at 39.0°N, 85.9°W, 604 ft above sea level, in United States. The nearest listed city is Columbus, 17 mi away.

Topography around Seymour

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

Within 2 miles, the terrain around Seymour has only modest variations in elevation — a maximum elevation change of 98 ft around an average of 587 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 489 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 810 ft.

The land around Seymour is covered by cropland (35%), grassland (25%) and artificial surfaces (22%) within 2 miles, cropland (53%) and trees (32%) within 10 miles, and trees (53%) and cropland (32%) within 50 miles.

2 miles
98 ft
10 miles
489 ft
50 miles
810 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Columbus 17 mi · Bloomington 37 mi · Franklin 37 mi · Shelbyville 39 mi · Clarksville 47 mi · New Albany 47 mi · Greenwood 47 mi · Jeffersonville 48 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 Seymour (38.9592°, -85.8902°, elevation 604 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).