Chillicothe weather in January

In January, Chillicothe sees average daytime highs of 39°F and overnight lows near 25°F, with 3.3 in of precipitation across 10.5 wet days and about 9.5 hours of daylight. It is the 12th-warmest and 7th-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 19% 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 9 h 54 min by month's end. Set against the rest of the year, January is Chillicothe's 12th-clearest and 1st-windiest month. For the whole year in context, see Chillicothe's year-round climate.

Daytime high
39°
12th warmest
Overnight low
25°
1st coldest
Precipitation
3.3 in
10.5 wet days
Daylight
9 h 30 min
7:56 AM – 5:27 PM
Cloud cover
73%
12th clearest
Wind
8 mph
1st windiest
Solar energy
2 kWh/m²
Travel score
0.0
out of 10

Chillicothe is city in and the county seat of Ross County, Ohio, United States.

Density
792/km²
people per km²
Founded
1803

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 Chillicothe 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 23°F and 55°F. Set against its neighbours, January runs about 4°F cooler than December and about 3°F cooler than February.

20°40°60°151015202531
Avg high (°F)Avg low (°F)
14128
24127
34127
44027
54027
64027
74026
84026
94026
104026
113926
123925
133925
143925
153924
163824
173824
183824
193824
203823
213823
223823
233823
243823
253823
263823
273923
283924
293924
303924
313924

How January really feels in Chillicothe

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.

Chillicothe weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan39° / 25°3.310.54.49.50.0
Feb42° / 27°3.19.6410.50.4
Mar52° / 35°4.111.2211.72.7
Apr64° / 45°4.312.40.4135.3
May73° / 55°4.513014.16.2
Jun81° / 64°4.012.2014.75.9
Jul85° / 67°3.712014.55.2
Aug84° / 65°2.99.9013.55.7
Sep78° / 58°3.08.2012.37.1
Oct66° / 47°2.98.70.1116.1
Nov53° / 37°3.19.20.79.83.1
Dec43° / 30°3.410.22.69.30.5

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 19% of the time in January, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 10% of January, with mostly cloudy or overcast conditions the remaining 71%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13070
23070
32971
42971
52971
62971
72971
82872
92872
102872
112872
122872
132872
142872
152872
162872
172773
182773
192773
202872
212872
222872
232872
242872
252872
262872
272971
283070
293070
303070
313070

Chance of precipitation in January

Any precipitationSnow

Chillicothe gets around 3.3 in of rain and snow over 10.5 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 34% and peaks near 37% on the wettest days, and about 4 days bring snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
13312
23412
33412
43513
53513
63613
73613
83614
93714
103714
113615
123615
133615
143615
153516
163516
173516
183416
193416
203316
213316
223316
233216
243215
253215
263215
273215
283215
293215
303214
313214

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 (%)
1991
2982
3982
4982
5982
6982
7982
8982
9982
10982
11982
12982
13991
14991
15991
16991
17991
18991
19991
20991
211000
221000
231000
241000
251000
261000
271000
281000
291000
301000
311000

Wind in January

Winds average 8 mph in January, the windiest month of the year.

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
17calm
27calm
37calm
47light breeze
57light breeze
67light breeze
78light breeze
88light breeze
98light breeze
108light breeze
118light breeze
128light breeze
138light breeze
148light breeze
157light breeze
167light breeze
177light breeze
187light breeze
197light breeze
207light breeze
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 9 h 18 min at the start of January to 9 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 36 minutes over January. Sunrise moves from 7:57 AM to 7:47 AM, and sunset from 5:13 PM to 5:43 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.37:575:13
29.37:575:14
39.37:575:15
49.37:575:16
59.37:575:16
69.37:575:17
79.37:575:18
89.47:575:19
99.47:575:20
109.47:575:21
119.47:575:22
129.47:575:23
139.57:575:24
149.57:565:25
159.57:565:26
169.57:565:27
179.57:555:28
189.67:555:29
199.67:555:30
209.67:545:31
219.67:545:32
229.77:535:33
239.77:535:34
249.77:525:35
259.77:525:36
269.87:515:37
279.87:505:39
289.87:505:40
299.97:495:41
309.97:485:42
319.97:475:43

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2 kWh/m².

For context, solar energy here swings from a low near 1.68 kWh/m² to a high of 6.18 kWh/m² in June across the year — January's 2 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
11.7Dim
21.7Dim
31.8Dim
41.8Dim
51.8Dim
61.8Dim
71.8Dim
81.8Dim
91.8Dim
101.8Dim
111.9Dim
121.9Dim
131.9Dim
141.9Dim
151.9Dim
162.0Dim
172.0Moderate
182.0Moderate
192.1Moderate
202.1Moderate
212.1Moderate
222.1Moderate
232.2Moderate
242.2Moderate
252.2Moderate
262.3Moderate
272.3Moderate
282.3Moderate
292.4Moderate
302.4Moderate
312.4Moderate
Planning a trip in January

Is January a good time to visit Chillicothe?

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 Chillicothe.

What to pack for Chillicothe in January

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

In January, Chillicothe sees daytime highs around 39°F and nights near 25°F. Pack a warm layer and a heavy coat. Worth having: rain gear. About 11 days see rain.

a warm layera heavy coatrain gear

UV index in Chillicothe 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 Chillicothe peaks around June 19 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 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJun 19UV 9Dec 23UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun10Very high
Jul9Very high
Aug8Very high
Sep6High
Oct3Moderate
Nov3Moderate
Dec2Low

Air quality in Chillicothe 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 Chillicothe is worst in July — around 18 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (October, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1218 µg/m³Oct 248 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb10Good
Mar10Good
Apr11Good
May14Moderate
Jun17Moderate
Jul18Moderate
Aug15Moderate
Sep12Good
Oct8Good
Nov8Good
Dec8Good
Location & terrain

Where is Chillicothe?

Chillicothe sits at 39.3°N, 83.0°W, 630 ft above sea level, in United States. The nearest listed city is Lancaster, 34 mi away.

Topography around Chillicothe

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

Within 2 miles, the terrain around Chillicothe has only modest variations in elevation — a maximum elevation change of 469 ft around an average of 673 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 778 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 892 ft.

The land around Chillicothe is covered by trees (36%), grassland (28%) and artificial surfaces (25%) within 2 miles, trees (58%) and cropland (22%) within 10 miles, and trees (53%) and cropland (31%) within 50 miles.

2 miles
469 ft
10 miles
778 ft
50 miles
892 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Lancaster 34 mi · Grove City 39 mi · Pickerington 40 mi · Portsmouth 42 mi · Columbus 43 mi · Reynoldsburg 44 mi · Whitehall 44 mi · Upper Arlington 46 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 Chillicothe (39.3331°, -82.9824°, elevation 630 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).