Chambersburg weather in October: Chambersburg, Pennsylvania: normal highs, lows, rain and records for October
Chambersburg in October has a normal high of 64°F and a normal low of 45°F, a daily mean of 54°F, falling from 70°F on the 1st to 59°F by the 31st. Measurable precipitation falls on 9 days in a normal October, 3.53 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 18°C and low of 7°C, 90 mm of precipitation in October.
- NOAA stationChambersburg (1 mi ESE)
- Station IDUSC00361354
- Location39.94°N 77.64°W
- Elevation640 ft (195 m)
- Population23,041
- Jan 37° 23°
- Feb 41° 25°
- Mar 50° 32°
- Apr 63° 42°
- May 73° 52°
- Jun 81° 61°
- Jul 85° 65°
- Aug 83° 63°
- Sep 76° 56°
- Oct 64° 45°
- Nov 52° 35°
- Dec 41° 27°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Chambersburg in October?
The normal high is 64°F and the normal low 45°F, for a daily mean of 54.3°F. October is 11.4°F cooler than September and 10.8°F warmer than November. October is the 6th warmest month of the year in Chambersburg and the 8th wettest. Across the month the normal high falls 11°F, from 70°F on October 1 to 59°F on October 31. From one year to the next October's mean temperature typically moves about 2.5°F either way (NOAA's standard deviation), so roughly two Octobers in three average between 52°F and 57°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 30%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| October 1 | 70°F | 50°F | 30% | 22% |
| October 8 | 67°F | 47°F | 29% | 22% |
| October 15 | 64°F | 45°F | 29% | 21% |
| October 22 | 62°F | 42°F | 29% | 20% |
| October 31 | 59°F | 40°F | 27% | 19% |
Every day of October: normal high, low and chance of precipitation (warmest afternoon October 1, coldest night October 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| October 1 | 70°F | 50°F | 30% | 22% | 11 h 50 min |
| October 2 | 69°F | 50°F | 30% | 22% | 11 h 50 min |
| October 3 | 69°F | 49°F | 30% | 22% | 11 h 40 min |
| October 4 | 68°F | 49°F | 30% | 22% | 11 h 40 min |
| October 5 | 68°F | 49°F | 30% | 22% | 11 h 40 min |
| October 6 | 68°F | 48°F | 30% | 22% | 11 h 40 min |
| October 7 | 67°F | 48°F | 29% | 22% | 11 h 30 min |
| October 8 | 67°F | 47°F | 29% | 22% | 11 h 30 min |
| October 9 | 67°F | 47°F | 29% | 22% | 11 h 30 min |
| October 10 | 66°F | 47°F | 29% | 21% | 11 h 30 min |
| October 11 | 66°F | 46°F | 29% | 21% | 11 h 20 min |
| October 12 | 65°F | 46°F | 29% | 21% | 11 h 20 min |
| October 13 | 65°F | 46°F | 29% | 21% | 11 h 20 min |
| October 14 | 65°F | 45°F | 29% | 21% | 11 h 20 min |
| October 15 | 64°F | 45°F | 29% | 21% | 11 h 10 min |
| October 16 | 64°F | 45°F | 29% | 21% | 11 h 10 min |
| October 17 | 64°F | 44°F | 29% | 21% | 11 h 10 min |
| October 18 | 63°F | 44°F | 29% | 21% | 11 h 10 min |
| October 19 | 63°F | 43°F | 29% | 21% | 11 h |
| October 20 | 63°F | 43°F | 29% | 20% | 11 h |
| October 21 | 62°F | 43°F | 29% | 20% | 11 h |
| October 22 | 62°F | 42°F | 29% | 20% | 11 h |
| October 23 | 61°F | 42°F | 28% | 20% | 10 h 50 min |
| October 24 | 61°F | 42°F | 28% | 20% | 10 h 50 min |
| October 25 | 61°F | 41°F | 28% | 20% | 10 h 50 min |
| October 26 | 60°F | 41°F | 28% | 19% | 10 h 50 min |
| October 27 | 60°F | 41°F | 28% | 19% | 10 h 40 min |
| October 28 | 60°F | 40°F | 28% | 19% | 10 h 40 min |
| October 29 | 59°F | 40°F | 28% | 19% | 10 h 40 min |
| October 30 | 59°F | 40°F | 28% | 19% | 10 h 40 min |
| October 31 | 59°F | 40°F | 27% | 19% | 10 h 30 min |
- Normal high
- 64°FOctober average
- Normal low
- 45°FOctober average
- Precipitation
- 3.53 inmonth total
- Days with precipitation
- 90.01 inch or more
- Nights at 32°F or colder
- 2
- Daylight
- 11 h 50 min to 10 h 30 minOctober 1 to October 31
- Days at 70°F or more
- 9
- Days at 80°F or more
- 2
- Sunshine
- 72%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00361354; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Chambersburg in October?
On a given October day the chance of 0.01 inch or more is 29% on average, highest around October 1 (30%). In all, 3.53 in falls on 9 days of a normal October, 1 of them with an inch or more.
In a normal October in Chambersburg, 2 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00361354.
What are the records for October in Chambersburg?
The warmest October temperature on this station's record (since 1894) is 95°F, on October 5, 1941; the coldest is 18°F, on October 28, 1976. The wettest October brought 10.19 in (1976); the snowiest, 5.6 inches (1925).
The October mean against the 1991-2020 normal of 54.3°F: 2021 61.2°F (+6.9), 2022 53.2°F (−1.1), 2023 57.2°F (+2.9), 2024 57.2°F (+2.9). 3 of 4 ran warmer than normal.
| October | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 61.2°F | +6.9°F | 2.19 in |
| 2022 | 53.2°F | −1.1°F | 1.40 in |
| 2023 | 57.2°F | +2.9°F | 1.65 in |
| 2024 | 57.2°F | +2.9°F | 0.56 in |
Source: records: ACIS, station USC00361354; recent months: ACIS, station USC00361354. Records and recent months use complete months only.
How does October in Chambersburg compare across Pennsylvania?
Across the 108 places PlainClimate covers in Pennsylvania, October normal highs run from 56°F in Laporte to 68°F in Marcus Hook; Chambersburg's is 64°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Chambersburg in September76°F by day, 56°F at night
- Chambersburg in November52°F by day, 35°F at night
- Chambersburg through the yearEvery month, frost dates, records and recent years
- Pennsylvania in OctoberThe statewide normal and the warmest and coolest places
- Marcus Hook: Pennsylvania's warmest Octobernormal high 68°F