Monthly outlook for Port Perry, PA: average high 58.9°, average low 44.9°. That is 1.5° above the climate normal for October. Precipitation is expected on 6 days (about 1.2 inches), against a normal of 6 days and 1.9 inches. The warmest day looks like 29 October (68.5°), the coolest 10 November (37.7°).
58.9°/44.9°
Average high / low
+1.5°
Above normal
6 / 6
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
26 October – 4 November
63.2°
57.6°
+3.1°
5 November – 14 November
51.7°
52.6°
-0.5°
15 November – 24 November
at normal
48.7°
—
October records over 66 years
88.5°1 October 2019All-time high
25.5°20 October 1972All-time low
Climate normals and records are computed from the nearest reference point — Turtle Creek (2 mi).
Tue, 2767° / 40°0
67 °
Port Perry, Tuesday, 27 October
Partly cloudy. High 67°, low 40°.
Pressure30.39 inHg
Wind2.1 mph NE
Humidity79%
Visibility6.2 mi
Dew point50°
Wed, 2868° / 44°0
68 °
Port Perry, Wednesday, 28 October
Overcast. High 68°, low 44°.
Pressure30.33 inHg
Wind3.6 mph S
Humidity64%
Visibility6.2 mi
Dew point51°
Thu, 2969° / 48°0
69 °
Port Perry, Thursday, 29 October
Clear. High 69°, low 48°.
Pressure30.21 inHg
Wind4.6 mph SW
Humidity66%
Visibility6.2 mi
Dew point52°
Fri, 3064° / 49°0.01
64 °
Port Perry, Friday, 30 October
Light rain. High 64°, low 49°.
Pressure30.21 inHg
Wind2.3 mph W
Humidity78%
Visibility6.2 mi
Dew point52°
Sat, 3165° / 42°0
65 °
Port Perry, Saturday, 31 October
Overcast. High 65°, low 42°.
Pressure30.30 inHg
Wind5.2 mph SE
Humidity44%
Visibility—
Dew point40°
Sun, 0157° / 53°0.02
57 °
Port Perry, Sunday, 1 November
Light rain. High 57°, low 53°.
Pressure30.24 inHg
Wind5.1 mph E
Humidity62%
Visibility—
Dew point43°
Mon, 0256° / 54°0.11
56 °
Port Perry, Monday, 2 November
Light rain. High 56°, low 54°.
Pressure30.06 inHg
Wind7.6 mph E
Humidity92%
Visibility—
Dew point53°
Tue, 0361° / 54°0.57
61 °
Port Perry, Tuesday, 3 November
Rain. High 61°, low 54°.
Pressure29.94 inHg
Wind11.3 mph SE
Humidity91%
Visibility—
Dew point56°
Wed, 0460° / 48°0.12
60 °
Port Perry, Wednesday, 4 November
Light rain. High 60°, low 48°.
Pressure29.83 inHg
Wind11.1 mph SE
Humidity44%
Visibility—
Dew point36°
Thu, 0557° / 44°0
57 °
Port Perry, Thursday, 5 November
Mostly clear. High 57°, low 44°.
Pressure29.91 inHg
Wind9.1 mph W
Humidity38%
Visibility—
Dew point30°
Fri, 0651° / 47°0.11
51 °
Port Perry, Friday, 6 November
Light rain. High 51°, low 47°.
Pressure29.68 inHg
Wind7.8 mph S
Humidity92%
Visibility—
Dew point47°
Sat, 0753° / 38°0.21
53 °
Port Perry, Saturday, 7 November
Light rain. High 53°, low 38°.
Pressure29.56 inHg
Wind12.4 mph SW
Humidity55%
Visibility—
Dew point33°
Sun, 0850° / 40°0.07
50 °
Port Perry, Sunday, 8 November
Light rain. High 50°, low 40°.
Pressure29.85 inHg
Wind10.9 mph W
Humidity88%
Visibility—
Dew point44°
Mon, 0947° / 40°0
47 °
Port Perry, Monday, 9 November
Overcast. High 47°, low 40°.
Pressure30.09 inHg
Wind11.1 mph N
Humidity66%
Visibility—
Dew point35°
Tue, 1052° / 38°0
52 °
Port Perry, Tuesday, 10 November
Clear. High 52°, low 38°.
Pressure30.21 inHg
Wind6.2 mph N
Humidity51%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 1152° / 38°0.16
52 °
Port Perry, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.16 in
Chance of precipitation35%
Record high68° (1964)
Record low20° (2017)
Thu, 1251° / 37°0.14
51 °
Port Perry, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.14 in
Chance of precipitation40%
Record high68° (1964)
Record low22° (2019)
Fri, 1349° / 35°0.06
49 °
Port Perry, Friday, 13 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.06 in
Chance of precipitation37%
Record high68° (1989)
Record low9° (2019)
Sat, 1450° / 36°0.11
50 °
Port Perry, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.11 in
Chance of precipitation28%
Record high69° (2011)
Record low16° (2019)
Sun, 1551° / 36°0.14
51 °
Port Perry, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.14 in
Chance of precipitation48%
Record high69° (2005)
Record low21° (1996)
Mon, 1650° / 36°0.14
50 °
Port Perry, Monday, 16 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.14 in
Chance of precipitation40%
Record high69° (1988)
Record low21° (1967)
Tue, 1749° / 35°0.12
49 °
Port Perry, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.12 in
Chance of precipitation35%
Record high66° (2021)
Record low21° (2014)
Wed, 1849° / 35°0.08
49 °
Port Perry, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.08 in
Chance of precipitation33%
Record high69° (2016)
Record low16° (2014)
Thu, 1950° / 36°0.14
50 °
Port Perry, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.14 in
Chance of precipitation37%
Record high71° (1985)
Record low15° (2014)
Fri, 2049° / 36°0.11
49 °
Port Perry, Friday, 20 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.11 in
Chance of precipitation43%
Record high71° (1991)
Record low18° (1984)
Sat, 2147° / 35°0.09
47 °
Port Perry, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.09 in
Chance of precipitation40%
Record high67° (2007)
Record low20° (1984)
Sun, 2247° / 34°0.12
47 °
Port Perry, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.12 in
Chance of precipitation38%
Record high68° (1999)
Record low17° (2000)
Mon, 2349° / 33°0.07
49 °
Port Perry, Monday, 23 November
Climate normal for this date — 60-year average.
Average high49°
Average low33°
Average precipitation0.07 in
Chance of precipitation33%
Record high69° (1979)
Record low18° (2000)
Tue, 2447° / 33°0.11
47 °
Port Perry, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.11 in
Chance of precipitation37%
Record high66° (2014)
Record low17° (2005)
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 Port Perry, 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 Port Perry, 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.