Monthly outlook for Big Mount, PA: average high 62.5°, average low 45.3°. That is 0.3° below the climate normal for October. Precipitation is expected on 4 days (about 2.7 inches), against a normal of 4 days and 1.7 inches. The warmest day looks like 14 October (79.3°), the coolest 19 October (30.2°).
62.5°/45.3°
Average high / low
−0.3°
Below normal
4 / 4
Wet days / normal
2.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
64.5°
64°
+0.2°
21 October – 30 October
59.2°
60.5°
-0.7°
31 October – 9 November
at normal
57.6°
—
October records over 66 years
91°2 October 2019All-time high
25.9°31 October 2011All-time low
Climate normals and records are computed from the nearest reference point — West York (9 mi).
Mon, 1277° / 56°0.23
77 °
Big Mount, Monday, 12 October
Rain. High 77°, low 56°.
Pressure29.88 inHg
Wind10.4 mph N
Humidity69%
Visibility6.2 mi
Dew point57°
Tue, 1377° / 54°0
77 °
Big Mount, Tuesday, 13 October
Clear. High 77°, low 54°.
Pressure29.94 inHg
Wind9.1 mph S
Humidity71%
Visibility6.2 mi
Dew point63°
Wed, 1479° / 65°0.02
79 °
Big Mount, Wednesday, 14 October
Light rain. High 79°, low 65°.
Pressure29.94 inHg
Wind6.4 mph W
Humidity69%
Visibility6.2 mi
Dew point66°
Thu, 1565° / 57°0
65 °
Big Mount, Thursday, 15 October
Overcast. High 65°, low 57°.
Pressure30.21 inHg
Wind8.1 mph N
Humidity61%
Visibility6.2 mi
Dew point49°
Fri, 1672° / 54°0.29
72 °
Big Mount, Friday, 16 October
Light rain. High 72°, low 54°.
Pressure29.62 inHg
Wind24.7 mph NW
Humidity95%
Visibility—
Dew point65°
Sat, 1749° / 34°0
49 °
Big Mount, Saturday, 17 October
Light rain. High 49°, low 34°.
Pressure29.91 inHg
Wind22 mph NW
Humidity56%
Visibility—
Dew point31°
Sun, 1847° / 32°0
47 °
Big Mount, Sunday, 18 October
Clear. High 47°, low 32°.
Pressure30.47 inHg
Wind18.9 mph NW
Humidity43%
Visibility—
Dew point19°
Mon, 1954° / 30°0
54 °
Big Mount, Monday, 19 October
Overcast. High 54°, low 30°.
Pressure30.62 inHg
Wind10 mph SW
Humidity49%
Visibility—
Dew point26°
Tue, 2062° / 39°0
62 °
Big Mount, Tuesday, 20 October
Clear. High 62°, low 39°.
Pressure30.42 inHg
Wind8.8 mph NW
Humidity48%
Visibility—
Dew point33°
Wed, 2161° / 42°0
61 °
Big Mount, Wednesday, 21 October
Clear. High 61°, low 42°.
Pressure30.45 inHg
Wind4.7 mph NE
Humidity66%
Visibility—
Dew point42°
Thu, 2259° / 42°0
59 °
Big Mount, Thursday, 22 October
Overcast. High 59°, low 42°.
Pressure30.45 inHg
Wind5.7 mph E
Humidity69%
Visibility—
Dew point42°
Fri, 2359° / 40°0
59 °
Big Mount, Friday, 23 October
Clear. High 59°, low 40°.
Pressure30.36 inHg
Wind6.9 mph E
Humidity68%
Visibility—
Dew point41°
Sat, 2461° / 41°0
61 °
Big Mount, Saturday, 24 October
Overcast. High 61°, low 41°.
Pressure30.15 inHg
Wind10.5 mph N
Humidity59%
Visibility—
Dew point37°
Sun, 2559° / 43°0
59 °
Big Mount, Sunday, 25 October
Clear. High 59°, low 43°.
Pressure30.09 inHg
Wind13.8 mph N
Humidity57%
Visibility—
Dew point38°
Mon, 2656° / 39°0.2
56 °
Big Mount, Monday, 26 October
Light rain. High 56°, low 39°.
Pressure29.85 inHg
Wind14.6 mph S
Humidity57%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2760° / 46°0.17
60 °
Big Mount, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high60°
Average low46°
Average precipitation0.17 in
Chance of precipitation28%
Record high80° (1984)
Record low31° (1976)
Wed, 2860° / 45°0.12
60 °
Big Mount, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high60°
Average low45°
Average precipitation0.12 in
Chance of precipitation25%
Record high80° (1984)
Record low28° (1976)
Thu, 2958° / 43°0.21
58 °
Big Mount, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high58°
Average low43°
Average precipitation0.21 in
Chance of precipitation23%
Record high74° (1984)
Record low30° (1965)
Fri, 3058° / 42°0.11
58 °
Big Mount, Friday, 30 October
Climate normal for this date — 60-year average.
Average high58°
Average low42°
Average precipitation0.11 in
Chance of precipitation27%
Record high78° (2016)
Record low30° (2011)
Sat, 3159° / 43°0.06
59 °
Big Mount, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high59°
Average low43°
Average precipitation0.06 in
Chance of precipitation22%
Record high80° (2024)
Record low26° (2011)
Sun, 0160° / 46°0.06
60 °
Big Mount, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high60°
Average low46°
Average precipitation0.06 in
Chance of precipitation27%
Record high79° (1974)
Record low33° (2011)
Mon, 0260° / 45°0.13
60 °
Big Mount, Monday, 2 November
Climate normal for this date — 60-year average.
Average high60°
Average low45°
Average precipitation0.13 in
Chance of precipitation32%
Record high78° (1971)
Record low31° (2023)
Tue, 0359° / 44°0.07
59 °
Big Mount, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high59°
Average low44°
Average precipitation0.07 in
Chance of precipitation27%
Record high78° (2003)
Record low32° (2021)
Wed, 0457° / 42°0.08
57 °
Big Mount, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.08 in
Chance of precipitation22%
Record high76° (2003)
Record low30° (2006)
Thu, 0557° / 43°0.1
57 °
Big Mount, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high57°
Average low43°
Average precipitation0.1 in
Chance of precipitation33%
Record high75° (2022)
Record low27° (1991)
Fri, 0656° / 42°0.06
56 °
Big Mount, Friday, 6 November
Climate normal for this date — 60-year average.
Average high56°
Average low42°
Average precipitation0.06 in
Chance of precipitation25%
Record high81° (2024)
Record low28° (1967)
Sat, 0755° / 41°0.07
55 °
Big Mount, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.07 in
Chance of precipitation22%
Record high73° (2023)
Record low28° (1962)
Sun, 0855° / 40°0.17
55 °
Big Mount, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.17 in
Chance of precipitation20%
Record high74° (1975)
Record low27° (1960)
Mon, 0955° / 40°0.07
55 °
Big Mount, Monday, 9 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.07 in
Chance of precipitation32%
Record high74° (1975)
Record low24° (2019)
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Big Mount, PA are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Big Mount, PA since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.