Chambersburg weather in October

In October, Chambersburg sees average daytime highs of 63°F and overnight lows near 46°F, with 3.3 in of precipitation across 8.2 wet days and about 10.9 hours of daylight. It is the 6th-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about 69°F in the first days to 58°F by the end. The sky is clear or mostly clear about 37% 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 Chambersburg's 1st-clearest and 7th-windiest month. For the whole year in context, see Chambersburg's year-round climate.

Daytime high
63°
6th warmest
Overnight low
46°
7th coldest
Precipitation
3.3 in
8.2 wet days
Daylight
10 h 54 min
6:28 AM – 5:23 PM
Cloud cover
55%
1st clearest
Wind
6 mph
7th windiest
Solar energy
3.18 kWh/m²
Travel score
5.8
out of 10

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 58°F by the end.

A typical October day in Chambersburg reaches about 63°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 75°F. Set against its neighbours, October runs about 12°F cooler than September and about 12°F warmer than November.

20°40°60°80°151015202531
Avg high (°F)Avg low (°F)
16951
26951
36951
46850
56850
66749
76749
86749
96648
106648
116547
126547
136547
146446
156446
166346
176345
186245
196244
206244
216144
226143
236043
246043
256042
265942
275942
285841
295841
305841
315740

How October really feels in Chambersburg

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.

Chambersburg weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan37° / 23°3.194.39.50.0
Feb40° / 25°2.78.54.310.40.2
Mar49° / 32°3.810.53.211.72.1
Apr62° / 43°3.6110.4135.0
May71° / 52°3.812.4014.26.1
Jun80° / 61°3.510.8014.86.3
Jul84° / 66°3.510.1014.55.5
Aug82° / 65°2.89.1013.66.2
Sep75° / 57°4.09.3012.36.9
Oct63° / 46°3.38.20.210.95.8
Nov51° / 36°3.18.20.99.82.7
Dec41° / 28°3.38.62.79.20.2

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 37% of the time in October, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 15% of October, with mostly cloudy or overcast conditions the remaining 48%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15446
25446
35545
45545
55446
65446
75446
85446
95446
105446
115347
125347
135347
145248
155248
165248
175149
185149
195149
205149
215149
225050
235149
245149
255149
265149
275050
285149
295149
305149
315149

Chance of precipitation in October

Any precipitation

Chambersburg gets around 3.3 in of rain and snow over 8.2 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 30% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%151015202531
Rain chance (%)
130
230
329
428
527
627
726
825
925
1025
1125
1226
1326
1426
1527
1627
1727
1827
1928
2028
2128
2228
2328
2428
2528
2628
2727
2827
2927
3026
3126

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 84% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
16617125
26916114
37016104
47115104
5721594
6751483
7751483
8771373
9791263
10801262
11821152
12821152
13841042
14851041
1587931
1687931
1788921
1889821
1990820
2091810
2192710
2292710
2392710
2492710
2593610
2693610
2793610
2894600
2995500
3095500
3195500

Wind in October

Winds average 6 mph in October.

Across October, daily wind ranges from about 6 mph on the calmest days to 6 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

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 6:12 AM to 6:45 AM, and sunset from 5:47 PM to 5:04 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:125:47
211.56:135:45
311.56:145:44
411.56:155:42
511.46:165:41
611.46:175:39
711.36:185:37
811.36:195:36
911.26:205:34
1011.26:215:33
1111.16:235:31
1211.16:245:29
1311.16:255:28
1411.06:265:26
1511.06:275:25
1610.96:285:23
1710.96:295:22
1810.86:305:21
1910.86:315:19
2010.86:325:18
2110.76:335:16
2210.76:355:15
2310.66:365:14
2410.66:375:12
2510.66:385:11
2610.56:395:10
2710.56:405:08
2810.46:415:07
2910.46:425:06
3010.46:445:05
3110.36:455:04

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 3.18 kWh/m².

For context, solar energy here swings from a low near 1.75 kWh/m² to a high of 6.08 kWh/m² in June across the year — October's 3.18 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
13.7Moderate
23.6Moderate
33.6Moderate
43.6Moderate
53.5Moderate
63.5Moderate
73.5Moderate
83.5Moderate
93.4Moderate
103.4Moderate
113.4Moderate
123.3Moderate
133.3Moderate
143.2Moderate
153.2Moderate
163.2Moderate
173.1Moderate
183.1Moderate
193.0Moderate
203.0Moderate
213.0Moderate
223.0Moderate
232.9Moderate
242.9Moderate
252.9Moderate
262.8Moderate
272.8Moderate
282.8Moderate
292.7Moderate
302.7Moderate
312.7Moderate
Planning a trip in October

Is October a good time to visit Chambersburg?

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

5.8
Sightseeing
5th-best month of the year
1.8
Beach & pool
6th-best month of the year

October is a reasonable time to visit Chambersburg for sightseeing.

What to pack for Chambersburg in October

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

In October, Chambersburg sees daytime highs around 63°F and nights near 46°F. Worth packing: a warm layer and rain gear. About 8 days see rain.

a warm layerrain gear

UV index in Chambersburg 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 Chambersburg peaks around June 22 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJun 22UV 9Dec 20UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun9Very high
Jul9Very high
Aug7High
Sep6High
Oct3Moderate
Nov2Moderate
Dec2Low

Air quality in Chambersburg 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 Chambersburg is worst in July — around 16 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (November, 7 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1316 µg/m³Nov 137 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb11Good
Mar12Good
Apr12Good
May14Moderate
Jun16Moderate
Jul16Moderate
Aug14Moderate
Sep11Good
Oct8Good
Nov7Good
Dec8Good
Location & terrain

Where is Chambersburg?

Chambersburg sits at 39.9°N, 77.7°W, 617 ft above sea level, in United States. The nearest listed city is Hagerstown, 21 mi away.

Topography around Chambersburg

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

Within 2 miles, the terrain around Chambersburg has only modest variations in elevation — a maximum elevation change of 220 ft around an average of 659 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,877 ft; within 50 miles, large variations in elevation — a maximum elevation change of 2,802 ft.

The land around Chambersburg is covered by trees (30%), artificial surfaces (29%) and grassland (26%) within 2 miles, trees (40%), cropland (34%) and grassland (21%) within 10 miles, and trees (64%) within 50 miles.

2 miles
220 ft
10 miles
1,877 ft
50 miles
2,802 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Hagerstown 21 mi · Carlisle 31 mi · Martinsburg 37 mi · Hanover 37 mi · Frederick 39 mi · Ballenger Creek 41 mi · Westminster 43 mi · Harrisburg 47 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 Chambersburg (39.9376°, -77.6611°, elevation 617 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).