Williamsport weather in October: Williamsport, Pennsylvania: normal highs, lows, rain and records for October
Williamsport in October has a normal high of 63°F and a normal low of 43°F, a daily mean of 53°F, falling from 69°F on the 1st to 57°F by the 31st. Measurable precipitation falls on 11 days in a normal October, 3.70 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 17°C and low of 6°C, 94 mm of precipitation and 0 cm of snow in October.
- NOAA stationWilliamsport Regional Airport
- Station IDUSW00014778
- Location41.24°N 76.92°W
- Elevation520 ft (159 m)
- Population27,628
- Jan 35° 20°
- Feb 39° 22°
- Mar 48° 29°
- Apr 62° 39°
- May 72° 49°
- Jun 81° 58°
- Jul 85° 63°
- Aug 83° 61°
- Sep 75° 54°
- Oct 63° 43°
- Nov 51° 33°
- Dec 40° 26°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Williamsport in October?
The normal high is 63°F and the normal low 43°F, for a daily mean of 53.0°F. October is 11.7°F cooler than September and 11.1°F warmer than November. October is the 6th warmest month of the year in Williamsport and the 6th wettest. Across the month the normal high falls 12°F, from 69°F on October 1 to 57°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 51°F and 56°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 35%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| October 1 | 69°F | 49°F | 35% | 21% |
| October 8 | 66°F | 46°F | 35% | 21% |
| October 15 | 64°F | 43°F | 35% | 20% |
| October 22 | 61°F | 41°F | 34% | 20% |
| October 31 | 57°F | 38°F | 33% | 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 | 69°F | 49°F | 35% | 21% | 11 h 50 min |
| October 2 | 69°F | 48°F | 35% | 21% | 11 h 50 min |
| October 3 | 68°F | 48°F | 35% | 21% | 11 h 40 min |
| October 4 | 68°F | 47°F | 35% | 21% | 11 h 40 min |
| October 5 | 68°F | 47°F | 35% | 21% | 11 h 40 min |
| October 6 | 67°F | 47°F | 35% | 21% | 11 h 40 min |
| October 7 | 67°F | 46°F | 35% | 21% | 11 h 30 min |
| October 8 | 66°F | 46°F | 35% | 21% | 11 h 30 min |
| October 9 | 66°F | 45°F | 35% | 20% | 11 h 30 min |
| October 10 | 65°F | 45°F | 35% | 20% | 11 h 20 min |
| October 11 | 65°F | 45°F | 35% | 20% | 11 h 20 min |
| October 12 | 65°F | 44°F | 35% | 20% | 11 h 20 min |
| October 13 | 64°F | 44°F | 35% | 20% | 11 h 20 min |
| October 14 | 64°F | 43°F | 35% | 20% | 11 h 10 min |
| October 15 | 64°F | 43°F | 35% | 20% | 11 h 10 min |
| October 16 | 63°F | 43°F | 35% | 20% | 11 h 10 min |
| October 17 | 63°F | 42°F | 35% | 20% | 11 h 10 min |
| October 18 | 62°F | 42°F | 34% | 20% | 11 h |
| October 19 | 62°F | 42°F | 34% | 20% | 11 h |
| October 20 | 62°F | 41°F | 34% | 20% | 11 h |
| October 21 | 61°F | 41°F | 34% | 20% | 10 h 50 min |
| October 22 | 61°F | 41°F | 34% | 20% | 10 h 50 min |
| October 23 | 60°F | 40°F | 34% | 20% | 10 h 50 min |
| October 24 | 60°F | 40°F | 34% | 20% | 10 h 50 min |
| October 25 | 60°F | 40°F | 34% | 19% | 10 h 40 min |
| October 26 | 59°F | 39°F | 34% | 19% | 10 h 40 min |
| October 27 | 59°F | 39°F | 34% | 19% | 10 h 40 min |
| October 28 | 58°F | 39°F | 33% | 19% | 10 h 40 min |
| October 29 | 58°F | 38°F | 33% | 19% | 10 h 30 min |
| October 30 | 58°F | 38°F | 33% | 19% | 10 h 30 min |
| October 31 | 57°F | 38°F | 33% | 19% | 10 h 30 min |
- Normal high
- 63°FOctober average
- Normal low
- 43°FOctober average
- Precipitation
- 3.70 inmonth total
- Days with precipitation
- 110.01 inch or more
- Snowfall
- 0.1 inmonth total
- Nights at 32°F or colder
- 3
- Daylight
- 11 h 50 min to 10 h 30 minOctober 1 to October 31
- Days at 70°F or more
- 8
- Days at 80°F or more
- 1
- Sunshine
- 65%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00014778; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Williamsport in October?
On a given October day the chance of 0.01 inch or more is 34% on average, highest around October 4 (35%). In all, 3.70 in falls on 11 days of a normal October, 1 of them with an inch or more.
In a normal October in Williamsport, 3 nights fall to freezing and snowfall averages 0.1 inches.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00014778.
How humid and windy is Williamsport in October?
At 3 p.m. the normal temperature is 55°F with 49% relative humidity and a dew point of 37°F; at 6 a.m. it is 42°F with 83% humidity. The wind averages 6.1 mph, most often from the west in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 42°F | 37°F | 83% | 4.9 mph | – |
| 9 a.m. | 45°F | 38°F | 75% | 6.3 mph | 41% |
| noon | 53°F | 38°F | 57% | 8.1 mph | 48% |
| 3 p.m. | 55°F | 37°F | 49% | 8.8 mph | 50% |
| 6 p.m. | 51°F | 38°F | 61% | 6.0 mph | 53% |
| 9 p.m. | 47°F | 38°F | 71% | 5.2 mph | 55% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00014778. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for October in Williamsport?
The warmest October temperature on Williamsport's official record (since 1895) is 93°F, on October 2, 1927; the coldest is 19°F, on October 28, 1936. The wettest October brought 9.60 in (1990); the snowiest, 2.0 inches (1925).
The October mean against the 1991-2020 normal of 53.0°F: 2021 59.4°F (+6.4), 2022 51.8°F (−1.2), 2023 56.5°F (+3.5), 2024 55.1°F (+2.1), 2025 53.5°F (+0.5). 4 of 5 ran warmer than normal.
| October | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 59.4°F | +6.4°F | 5.16 in |
| 2022 | 51.8°F | −1.2°F | 3.08 in |
| 2023 | 56.5°F | +3.5°F | 2.67 in |
| 2024 | 55.1°F | +2.1°F | 1.06 in |
| 2025 | 53.5°F | +0.5°F | 4.50 in |
Source: records: ACIS, NWS threaded record IPTthr; recent months: ACIS, station USW00014778. Records and recent months use complete months only.
How does October in Williamsport 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; Williamsport's is 63°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Williamsport in September75°F by day, 54°F at night
- Williamsport in November51°F by day, 33°F at night
- Williamsport 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