Marion weather in October

In October, Marion sees average daytime highs of 63°F and overnight lows near 45°F, with 2.8 in of precipitation across 9.3 wet days and about 10.9 hours of daylight. It is the 6th-warmest and 10th-wettest month of the year here.

Highs ease over the month, from about 69°F in the first days to 57°F by the end. The sky is clear or mostly clear about 34% of the time in October, and the air most often feels dry.

Daylight stretches from about 11 h 36 min at the start of October to 10 h 18 min by month's end. Set against the rest of the year, October is Marion's 4th-clearest and 7th-windiest month. For the whole year in context, see Marion's year-round climate.

Daytime high
63°
6th warmest
Overnight low
45°
7th coldest
Precipitation
2.8 in
9.3 wet days
Daylight
10 h 54 min
6:51 AM – 5:45 PM
Cloud cover
58%
4th clearest
Wind
9 mph
7th windiest
Solar energy
3.12 kWh/m²
Travel score
5.6
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 October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 69°F in the first days to 57°F by the end.

A typical October day in Marion reaches about 63°F in the afternoon and slips back to 45°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 51°F and 76°F. Set against its neighbours, October runs about 12°F cooler than September and about 13°F warmer than November.

20°40°60°80°151015202531
Avg high (°F)Avg low (°F)
17050
26950
36949
46949
56849
66848
76748
86747
96647
106647
116546
126546
136546
146445
156445
166344
176344
186244
196243
206143
216143
226042
236042
245942
255942
265841
275841
285840
295740
305740
315639

How October really feels in Marion

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

October sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Marion weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 10th-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 October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 34% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 13% of October, with mostly cloudy or overcast conditions the remaining 53%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15347
25347
35347
45347
55248
65248
75248
85248
95248
105149
115149
125050
135050
145050
154951
164852
174753
184753
194654
204555
214456
224456
234258
244258
254159
264159
274060
284060
294060
304060
314060

Chance of precipitation in October

Any precipitationSnow

Marion gets around 2.8 in of rain and snow over 9.3 wet days in October. 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 33% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
1300
2290
3290
4280
5280
6270
7270
8270
9270
10280
11280
12280
13280
14290
15290
16300
17300
18311
19311
20321
21321
22321
23331
24331
25321
26322
27322
28322
29312
30312
31302

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the dry band about 87% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1721585
2741484
3751474
4761374
5761374
6771274
7791263
8791263
9801163
10821152
11831052
1284952
1386941
1487841
1588831
1688831
1790820
1891720
1991720
2091720
2193610
2293610
2393610
2494510
2594510
2694510
2794510
2895410
2995410
3095410
3195410

Wind in October

Winds average 9 mph in October.

Across October, 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.

051015151015202531
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
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
299light breeze
309light breeze
319light breeze

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 36 min at the start of October to 10 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 78 minutes over October. Sunrise moves from 6:34 AM to 7:08 AM, and sunset from 6:09 PM to 5:24 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:346:09
211.56:356:07
311.56:366:05
411.46:376:04
511.46:386:02
611.36:406:00
711.36:415:59
811.36:425:57
911.26:435:55
1011.26:445:54
1111.16:455:52
1211.16:465:51
1311.06:475:49
1411.06:485:48
1510.96:495:46
1610.96:515:45
1710.96:525:43
1810.86:535:42
1910.86:545:40
2010.76:555:39
2110.76:565:37
2210.66:575:36
2310.66:595:34
2410.67:005:33
2510.57:015:32
2610.57:025:30
2710.47:035:29
2810.47:045:28
2910.47:065:27
3010.37:075:25
3110.37:085:24

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 3.12 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 — October's 3.12 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
13.8Moderate
23.8Moderate
33.7Moderate
43.7Moderate
53.6Moderate
63.6Moderate
73.6Moderate
83.5Moderate
93.5Moderate
103.4Moderate
113.4Moderate
123.3Moderate
133.3Moderate
143.3Moderate
153.2Moderate
163.1Moderate
173.1Moderate
183.0Moderate
193.0Moderate
203.0Moderate
212.9Moderate
222.9Moderate
232.8Moderate
242.8Moderate
252.7Moderate
262.7Moderate
272.6Moderate
282.6Moderate
292.6Moderate
302.5Moderate
312.5Moderate
Planning a trip in October

Is October a good time to visit Marion?

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

5.6
Sightseeing
6th-best month of the year
1.7
Beach & pool
6th-best month of the year

October is a reasonable time to visit Marion for sightseeing.

What to pack for Marion in October

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

In October, Marion sees daytime highs around 63°F and nights near 45°F. Worth packing: a warm layer and rain gear. About 9 days see rain.

a warm layerrain gear

UV index in Marion in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October 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 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 October

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where October 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
October 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).