West Mifflin weather in October: West Mifflin, Pennsylvania: normal highs, lows, rain and records for October
West Mifflin in October has a normal high of 63°F and a normal low of 45°F, a daily mean of 54°F, falling from 69°F on the 1st to 57°F by the 31st. Measurable precipitation falls on 14 days in a normal October, 3.06 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 17°C and low of 7°C, 78 mm of precipitation in October.
- NOAA stationPittsburgh Allegheny County Airport
- Station IDUSW00014762
- Location40.35°N 79.92°W
- Elevation1,248 ft (380 m)
- From the centerunder 1 mile
- Population18,902
- Jan 37° 22°
- Feb 40° 24°
- Mar 49° 31°
- Apr 63° 42°
- May 72° 52°
- Jun 79° 60°
- Jul 83° 64°
- Aug 81° 63°
- Sep 75° 56°
- Oct 63° 45°
- Nov 51° 35°
- Dec 41° 28°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is West Mifflin in October?
The normal high is 63°F and the normal low 45°F, for a daily mean of 54.2°F. October is 11.2°F cooler than September and 11.0°F warmer than November. October is the 6th warmest month of the year in West Mifflin and the 9th 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 2.3°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 45%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| October 1 | 69°F | 51°F | 43% | 22% |
| October 8 | 66°F | 48°F | 44% | 23% |
| October 15 | 64°F | 45°F | 45% | 24% |
| October 22 | 61°F | 43°F | 44% | 24% |
| October 31 | 57°F | 40°F | 42% | 23% |
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 | 51°F | 43% | 22% | 11 h 50 min |
| October 2 | 69°F | 50°F | 44% | 22% | 11 h 50 min |
| October 3 | 68°F | 50°F | 44% | 23% | 11 h 40 min |
| October 4 | 68°F | 49°F | 44% | 23% | 11 h 40 min |
| October 5 | 68°F | 49°F | 44% | 23% | 11 h 40 min |
| October 6 | 67°F | 49°F | 44% | 23% | 11 h 40 min |
| October 7 | 67°F | 48°F | 44% | 23% | 11 h 30 min |
| October 8 | 66°F | 48°F | 44% | 23% | 11 h 30 min |
| October 9 | 66°F | 48°F | 44% | 23% | 11 h 30 min |
| October 10 | 66°F | 47°F | 44% | 23% | 11 h 30 min |
| October 11 | 65°F | 47°F | 44% | 24% | 11 h 20 min |
| October 12 | 65°F | 47°F | 45% | 24% | 11 h 20 min |
| October 13 | 65°F | 46°F | 45% | 24% | 11 h 20 min |
| October 14 | 64°F | 46°F | 45% | 24% | 11 h 20 min |
| October 15 | 64°F | 45°F | 45% | 24% | 11 h 10 min |
| October 16 | 63°F | 45°F | 45% | 24% | 11 h 10 min |
| October 17 | 63°F | 45°F | 44% | 24% | 11 h 10 min |
| October 18 | 63°F | 44°F | 44% | 24% | 11 h |
| October 19 | 62°F | 44°F | 44% | 24% | 11 h |
| October 20 | 62°F | 44°F | 44% | 24% | 11 h |
| October 21 | 61°F | 43°F | 44% | 24% | 11 h |
| October 22 | 61°F | 43°F | 44% | 24% | 10 h 50 min |
| October 23 | 61°F | 43°F | 44% | 24% | 10 h 50 min |
| October 24 | 60°F | 42°F | 43% | 24% | 10 h 50 min |
| October 25 | 60°F | 42°F | 43% | 24% | 10 h 50 min |
| October 26 | 59°F | 42°F | 43% | 24% | 10 h 40 min |
| October 27 | 59°F | 41°F | 43% | 24% | 10 h 40 min |
| October 28 | 59°F | 41°F | 43% | 24% | 10 h 40 min |
| October 29 | 58°F | 41°F | 42% | 24% | 10 h 40 min |
| October 30 | 58°F | 40°F | 42% | 23% | 10 h 30 min |
| October 31 | 57°F | 40°F | 42% | 23% | 10 h 30 min |
- Normal high
- 63°FOctober average
- Normal low
- 45°FOctober average
- Precipitation
- 3.06 inmonth total
- Days with precipitation
- 140.01 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
- 10
- Days at 80°F or more
- 2
- Sunshine
- 66%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00014762; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in West Mifflin in October?
On a given October day the chance of 0.01 inch or more is 44% on average, highest around October 12 (45%). In all, 3.06 in falls on 14 days of a normal October, 1 of them with an inch or more.
In a normal October in West Mifflin, 2 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00014762.
How humid and windy is West Mifflin in October?
At 3 p.m. the normal temperature is 55°F with 51% relative humidity and a dew point of 37°F; at 6 a.m. it is 44°F with 77% humidity. The wind averages 8.0 mph, most often from the west-southwest in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 44°F | 37°F | 77% | 7.4 mph | 50% |
| 9 a.m. | 46°F | 38°F | 72% | 8.0 mph | 46% |
| noon | 53°F | 38°F | 57% | 9.6 mph | 40% |
| 3 p.m. | 55°F | 37°F | 51% | 9.4 mph | 41% |
| 6 p.m. | 52°F | 37°F | 57% | 7.2 mph | 45% |
| 9 p.m. | 49°F | 37°F | 64% | 7.5 mph | 52% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00014762. 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 West Mifflin?
The warmest October temperature on this station's record (since 1935) is 89°F, on October 3, 1951; the coldest is 25°F, on October 20, 1940. The wettest October brought 6.38 in (2019).
The October mean against the 1991-2020 normal of 54.2°F: 2021 61.2°F (+7.0), 2022 52.3°F (−1.9), 2023 56.9°F (+2.6), 2024 58.5°F (+4.3), 2025 54.5°F (+0.3). 4 of 5 ran warmer than normal.
| October | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 61.2°F | +7.0°F | 4.50 in |
| 2022 | 52.3°F | −1.9°F | 2.77 in |
| 2023 | 56.9°F | +2.6°F | 2.65 in |
| 2024 | 58.5°F | +4.3°F | 0.83 in |
| 2025 | 54.5°F | +0.3°F | 2.68 in |
Source: records: ACIS, station USW00014762; recent months: ACIS, station USW00014762. Records and recent months use complete months only.
How does October in West Mifflin 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; West Mifflin's is 63°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- West Mifflin in September75°F by day, 56°F at night
- West Mifflin in November51°F by day, 35°F at night
- West Mifflin 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