Riverside weather in October

In October, Riverside sees average daytime highs of 64°F and overnight lows near 46°F, with 2.8 in of precipitation across 8.5 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 70°F in the first days to 58°F by the end. The sky is clear or mostly clear about 36% 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 Riverside's 4th-clearest and 7th-windiest month. For the whole year in context, see Riverside's year-round climate.

Daytime high
64°
6th warmest
Overnight low
46°
7th coldest
Precipitation
2.8 in
8.5 wet days
Daylight
10 h 54 min
6:54 AM – 5:49 PM
Cloud cover
56%
4th clearest
Wind
8 mph
7th windiest
Solar energy
3.24 kWh/m²
Travel score
5.9
out of 10

Riverside is city in Ohio, United States.

Density
988/km²
people per km²
Founded
1995

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 70°F in the first days to 58°F by the end.

A typical October day in Riverside reaches about 64°F in the afternoon and slips back to 46°F overnight — a 18°F spread between the day's warmth and the night's chill. On most days the high lands between 52°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)
17151
27051
37051
47050
56950
66949
76849
86849
96748
106748
116747
126647
136547
146546
156546
166446
176445
186345
196344
206244
216244
226144
236143
246043
256043
265942
275942
285842
295841
305841
315740

How October really feels in Riverside

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.

Riverside 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
Jan37° / 23°3.210.24.89.50.0
Feb40° / 25°2.79.34.210.40.2
Mar50° / 33°3.811.32.311.72.2
Apr63° / 44°4.412.30.5135.1
May72° / 54°4.312.7014.26.2
Jun80° / 63°3.811.7014.86.1
Jul83° / 66°3.210.7014.55.7
Aug82° / 65°2.99.5013.66.3
Sep76° / 57°2.57.8012.37.2
Oct64° / 46°2.88.50.210.95.9
Nov51° / 36°3.18.919.82.6
Dec41° / 28°3.49.93.19.20.2

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 12% of October, with mostly cloudy or overcast conditions the remaining 52%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15743
25644
35644
45644
55644
65545
75446
85446
95347
105347
115248
125149
135050
145050
154951
164852
174852
184753
194555
204654
214555
224357
234357
244357
254258
264159
274159
284258
294159
304159
314159

Chance of precipitation in October

Any precipitationSnow

Riverside gets around 2.8 in of rain and snow over 8.5 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 27% and peaks near 32% on the wettest days, and about 0 day brings snow. The odds climb toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
1240
2240
3240
4230
5230
6230
7230
8230
9240
10240
11250
12250
13250
14260
15260
16270
17270
18280
19290
20290
21301
22301
23311
24311
25311
26321
27321
28321
29321
30312
31312

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 85% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
17014115
27313104
37313104
47412104
5751294
6751294
7771283
8781183
9781183
10791173
11811072
12821062
1383962
1485951
1586941
1686941
1787841
1889830
1989830
2090820
2191720
2291720
2391720
2492710
2593610
2693610
2793610
2893610
2994510
3094510
3194510

Wind in October

Winds average 8 mph in October.

Across October, 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.

051015151015202531
Wind speed (mph)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137light breeze
147light breeze
158light breeze
168light breeze
178light breeze
188light breeze
198light breeze
208light breeze
218light breeze
228light breeze
238light breeze
248light breeze
258light breeze
268light breeze
278light breeze
288light breeze
298light breeze
308light breeze
318light 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 6:38 AM to 7:10 AM, and sunset from 6:13 PM to 5:30 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:386:13
211.56:396:11
311.56:406:10
411.56:416:08
511.46:426:07
611.46:436:05
711.36:446:03
811.36:456:02
911.26:466:00
1011.26:475:59
1111.16:485:57
1211.16:495:55
1311.16:505:54
1411.06:515:52
1511.06:525:51
1610.96:545:49
1710.96:555:48
1810.86:565:47
1910.86:575:45
2010.86:585:44
2110.76:595:42
2210.77:005:41
2310.67:015:40
2410.67:025:38
2510.67:045:37
2610.57:055:36
2710.57:065:35
2810.47:075:33
2910.47:085:32
3010.47:095:31
3110.37:105:30

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 3.24 kWh/m².

For context, solar energy here swings from a low near 1.63 kWh/m² to a high of 6.22 kWh/m² in June across the year — October's 3.24 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
13.9Moderate
23.9Moderate
33.9Moderate
43.8Moderate
53.8Moderate
63.7Moderate
73.7Moderate
83.6Moderate
93.6Moderate
103.6Moderate
113.5Moderate
123.5Moderate
133.4Moderate
143.4Moderate
153.3Moderate
163.3Moderate
173.2Moderate
183.2Moderate
193.1Moderate
203.1Moderate
213.0Moderate
223.0Moderate
232.9Moderate
242.9Moderate
252.8Moderate
262.8Moderate
272.8Moderate
282.7Moderate
292.7Moderate
302.6Moderate
312.6Moderate
Planning a trip in October

Is October a good time to visit Riverside?

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

5.9
Sightseeing
5th-best month of the year
2.1
Beach & pool
6th-best month of the year

October is a reasonable time to visit Riverside for sightseeing.

What to pack for Riverside in October

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

In October, Riverside sees daytime highs around 64°F and nights near 46°F. Worth packing: a warm layer and rain gear. About 9 days see rain.

a warm layerrain gear

UV index in Riverside 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 Riverside 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJun 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 Riverside 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 Riverside 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 1117 µg/m³Oct 238 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb12Good
Mar12Good
Apr12Moderate
May15Moderate
Jun17Moderate
Jul17Moderate
Aug15Moderate
Sep12Good
Oct8Good
Nov8Good
Dec9Good
Location & terrain

Where is Riverside?

Riverside sits at 39.8°N, 84.1°W, 781 ft above sea level, in United States. The nearest listed city is Dayton, 3.7 mi away.

Topography around Riverside

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

Within 2 miles, the terrain around Riverside has only modest variations in elevation — a maximum elevation change of 233 ft around an average of 807 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 420 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,083 ft.

The land around Riverside is covered by trees (32%), grassland (31%) and artificial surfaces (30%) within 2 miles, trees (42%) and grassland (26%) within 10 miles, and cropland (60%) and trees (24%) within 50 miles.

2 miles
233 ft
10 miles
420 ft
50 miles
1,083 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Dayton 3.7 mi · Huber Heights 4.3 mi · Beavercreek 5.6 mi · Fairborn 6.2 mi · Kettering 6.8 mi · Vandalia 8.7 mi · Trotwood 9.9 mi · Centerville 11 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 Riverside (39.7798°, -84.1241°, elevation 781 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).