Marion weather in January

In January, Marion sees average daytime highs of 35°F and overnight lows near 21°F, with 3.0 in of precipitation across 10.8 wet days and about 9.4 hours of daylight. It is the 12th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 35°F through the month. The sky is clear or mostly clear about 14% of the time in January, and the air most often feels dry.

Daylight stretches from about 9 h 06 min at the start of January to 9 h 48 min by month's end. Set against the rest of the year, January is Marion's 12th-clearest and 1st-windiest month. For the whole year in context, see Marion's year-round climate.

Daytime high
35°
12th warmest
Overnight low
21°
1st coldest
Precipitation
3.0 in
10.8 wet days
Daylight
9 h 24 min
8:00 AM – 5:24 PM
Cloud cover
77%
12th clearest
Wind
10 mph
1st windiest
Solar energy
1.96 kWh/m²
Travel score
0.0
out of 10

Marion is county seat of Marion County, Ohio, United States.

Density
1,185/km²
people per km²
Founded
1822

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 35°F through the month.

A typical January day in Marion reaches about 35°F in the afternoon and slips back to 21°F overnight — a 14°F spread between the day's warmth and the night's chill. On most days the high lands between 19°F and 52°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)
13724
23724
33623
43623
53623
63623
73622
83622
93522
103522
113522
123521
133521
143521
153421
163420
173420
183420
193420
203420
213420
223420
233420
243420
253420
263420
273420
283420
293520
303520
313520

How January really feels in Marion

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
31 feel bitter (≤ 14°F)

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

Marion 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
Jan35° / 21°3.010.85.89.40.0
Feb38° / 23°2.59.1510.40.0
Mar49° / 31°3.611.23.111.71.8
Apr61° / 42°4.412.50.9134.7
May71° / 52°4.313.7014.26.0
Jun79° / 61°4.112.2014.86.2
Jul82° / 65°3.511.2014.66.1
Aug81° / 63°3.010.1013.66.5
Sep75° / 56°2.88.9012.37.0
Oct63° / 45°2.89.30.210.95.6
Nov50° / 35°3.19.31.29.72.3
Dec39° / 26°3.19.93.89.20.1

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 14% 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 76%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12575
22575
32476
42377
52377
62377
72377
82278
92278
102278
112278
122278
132278
142278
152278
162278
172278
182278
192278
202278
212377
222377
232476
242476
252476
262575
272674
282674
292773
302773
312773

Chance of precipitation in January

Any precipitationSnow

Marion gets around 3.0 in of rain and snow over 10.8 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 35% and peaks near 38% on the wettest days, and about 6 days bring snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
13515
23516
33616
43617
53717
63718
73718
83819
93819
103719
113719
123720
133620
143620
153620
163619
173519
183519
193419
203419
213319
223319
233219
243219
253219
263219
273218
283218
293218
303118
313118

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 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in January

Winds average 10 mph in January, the windiest month of the year.

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

051015151015202531
Wind speed (mph)Feels
110light breeze
210light breeze
310light breeze
410light breeze
510light breeze
610light breeze
710light breeze
810light breeze
910light breeze
1010light breeze
1110light 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
3010light breeze
3110light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 9 h 06 min at the start of January to 9 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 42 minutes over January. Sunrise moves from 8:01 AM to 7:51 AM, and sunset from 5:10 PM to 5:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.18:015:10
29.28:025:11
39.28:025:12
49.28:025:12
59.28:025:13
69.28:025:14
79.28:025:15
89.28:025:16
99.38:025:17
109.38:015:18
119.38:015:19
129.38:015:20
139.38:015:21
149.48:015:22
159.48:005:23
169.48:005:24
179.47:595:25
189.47:595:26
199.57:595:27
209.57:585:28
219.57:585:29
229.67:575:30
239.67:575:31
249.67:565:33
259.67:555:34
269.77:555:35
279.77:545:36
289.77:535:37
299.87:525:38
309.87:525:40
319.87:515:41

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 1.96 kWh/m².

For context, solar energy here swings from a low near 1.61 kWh/m² to a high of 6.24 kWh/m² in June across the year — January's 1.96 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
11.7Dim
21.7Dim
31.7Dim
41.7Dim
51.7Dim
61.7Dim
71.7Dim
81.8Dim
91.8Dim
101.8Dim
111.8Dim
121.8Dim
131.9Dim
141.9Dim
151.9Dim
161.9Dim
172.0Dim
182.0Moderate
192.0Moderate
202.1Moderate
212.1Moderate
222.1Moderate
232.1Moderate
242.2Moderate
252.2Moderate
262.2Moderate
272.3Moderate
282.3Moderate
292.3Moderate
302.4Moderate
312.4Moderate
Planning a trip in January

Is January a good time to visit Marion?

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

0.0
Sightseeing
11th-best month of the year
0.0
Beach & pool
10th-best month of the year

January is a weaker month for outdoor sightseeing in Marion.

What to pack for Marion in January

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

In January, Marion sees daytime highs around 35°F and nights near 21°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 Marion 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 Marion peaks around June 20 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 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 20UV 9Dec 22UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun10Very high
Jul9Very high
Aug8Very high
Sep6High
Oct3Moderate
Nov3Moderate
Dec2Low

Air quality in Marion 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 Marion is worst in July — around 17 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (October, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1216 µg/m³Oct 238 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb12Good
Mar12Moderate
Apr12Moderate
May15Moderate
Jun16Moderate
Jul17Moderate
Aug15Moderate
Sep12Good
Oct8Good
Nov8Good
Dec9Good
Location & terrain

Where is Marion?

Marion sits at 40.6°N, 83.1°W, 981 ft above sea level, in United States. The nearest listed city is Delaware, 21 mi away.

Topography around Marion

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

Within 2 miles, the terrain around Marion has only modest variations in elevation — a maximum elevation change of 148 ft around an average of 971 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 207 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,033 ft.

The land around Marion is covered by artificial surfaces (32%), trees (28%) and grassland (22%) within 2 miles, cropland (71%) within 10 miles, and cropland (61%) and trees (23%) within 50 miles.

2 miles
148 ft
10 miles
207 ft
50 miles
1,033 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Delaware 21 mi · Marysville 27 mi · Westerville 34 mi · Dublin 34 mi · Mansfield 34 mi · Mount Vernon 37 mi · Tiffin 37 mi · Hilliard 39 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 Marion (40.5887°, -83.1285°, elevation 981 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).