Monthly outlook for Portville, NY: average high 51.4°, average low 35.6°. That is 3.7° above the climate normal for November. Precipitation is expected on 6 days (about 0.6 inches), against a normal of 7 days and 1.8 inches. The warmest day looks like 4 November (72.6°), the coolest 12 November (23.2°).
51.4°/35.6°
Average high / low
+3.7°
Above normal
6 / 7
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
4 November – 13 November
51.2°
46°
+2.9°
14 November – 23 November
51.7°
41.8°
+5.5°
24 November – 3 December
at normal
38.8°
—
November records over 66 years
70.7°5 November 2022All-time high
-1.5°24 November 2000All-time low
Climate normals and records are computed from the nearest reference point — Otto (11 mi).
Thu, 0566° / 43°0.12
66 °
Portville, Thursday, 5 November
Light rain. High 66°, low 43°.
Pressure29.77 inHg
Wind13.5 mph SW
Humidity66%
Visibility6.2 mi
Dew point52°
Fri, 0654° / 42°0.15
54 °
Portville, Friday, 6 November
Light rain. High 54°, low 42°.
Pressure29.91 inHg
Wind8.2 mph SW
Humidity64%
Visibility6.2 mi
Dew point43°
Sat, 0743° / 37°0.05
43 °
Portville, Saturday, 7 November
Light rain. High 43°, low 37°.
Pressure29.97 inHg
Wind9.6 mph W
Humidity71%
Visibility6.2 mi
Dew point35°
Sun, 0848° / 40°0.05
48 °
Portville, Sunday, 8 November
Light rain. High 48°, low 40°.
Pressure29.97 inHg
Wind14.4 mph W
Humidity75%
Visibility—
Dew point35°
Mon, 0942° / 37°0.11
42 °
Portville, Monday, 9 November
Light rain. High 42°, low 37°.
Pressure30.00 inHg
Wind16.1 mph NW
Humidity74%
Visibility—
Dew point33°
Tue, 1056° / 34°0
56 °
Portville, Tuesday, 10 November
Partly cloudy. High 56°, low 34°.
Pressure30.00 inHg
Wind10.1 mph SW
Humidity44%
Visibility—
Dew point26°
Wed, 1143° / 27°0.01
43 °
Portville, Wednesday, 11 November
Snow. High 43°, low 27°.
Pressure30.03 inHg
Wind11.1 mph NW
Humidity72%
Visibility—
Dew point34°
Thu, 1240° / 23°0
40 °
Portville, Thursday, 12 November
Mostly clear. High 40°, low 23°.
Pressure30.30 inHg
Wind5.8 mph W
Humidity57%
Visibility—
Dew point19°
Fri, 1347° / 27°0
47 °
Portville, Friday, 13 November
Mostly clear. High 47°, low 27°.
Pressure30.00 inHg
Wind12.9 mph W
Humidity66%
Visibility—
Dew point28°
Sat, 1449° / 34°0
49 °
Portville, Saturday, 14 November
Mostly clear. High 49°, low 34°.
Pressure30.00 inHg
Wind9.5 mph W
Humidity74%
Visibility—
Dew point35°
Sun, 1552° / 37°0
52 °
Portville, Sunday, 15 November
Overcast. High 52°, low 37°.
Pressure30.06 inHg
Wind11.4 mph W
Humidity81%
Visibility—
Dew point40°
Mon, 1648° / 32°0
48 °
Portville, Monday, 16 November
Mostly clear. High 48°, low 32°.
Pressure30.27 inHg
Wind3.7 mph NE
Humidity61%
Visibility—
Dew point28°
Tue, 1753° / 31°0
53 °
Portville, Tuesday, 17 November
Clear. High 53°, low 31°.
Pressure30.33 inHg
Wind4.8 mph W
Humidity40%
Visibility—
Dew point20°
Wed, 1855° / 36°0
55 °
Portville, Wednesday, 18 November
Overcast. High 55°, low 36°.
Pressure30.36 inHg
Wind5 mph SW
Humidity73%
Visibility—
Dew point37°
Thu, 1954° / 40°0.15
54 °
Portville, Thursday, 19 November
Light rain. High 54°, low 40°.
Pressure30.09 inHg
Wind10.2 mph S
Humidity70%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2042° / 29°0.11
42 °
Portville, Friday, 20 November
Climate normal for this date — 60-year average.
Average high42°
Average low29°
Average precipitation0.11 in
Chance of precipitation50%
Record high64° (1991)
Record low10° (1986)
Sat, 2140° / 28°0.09
40 °
Portville, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high40°
Average low28°
Average precipitation0.09 in
Chance of precipitation52%
Record high56° (1991)
Record low9° (2014)
Sun, 2240° / 28°0.12
40 °
Portville, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high40°
Average low28°
Average precipitation0.12 in
Chance of precipitation52%
Record high61° (1999)
Record low1° (2018)
Mon, 2341° / 28°0.07
41 °
Portville, Monday, 23 November
Climate normal for this date — 60-year average.
Average high41°
Average low28°
Average precipitation0.07 in
Chance of precipitation25%
Record high61° (1979)
Record low0° (2018)
Tue, 2440° / 28°0.1
40 °
Portville, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high40°
Average low28°
Average precipitation0.1 in
Chance of precipitation45%
Record high57° (1979)
Record low-1° (2000)
Wed, 2540° / 28°0.1
40 °
Portville, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high40°
Average low28°
Average precipitation0.1 in
Chance of precipitation45%
Record high56° (1973)
Record low10° (2005)
Thu, 2641° / 29°0.19
41 °
Portville, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high41°
Average low29°
Average precipitation0.19 in
Chance of precipitation50%
Record high58° (2006)
Record low16° (2005)
Fri, 2740° / 29°0.11
40 °
Portville, Friday, 27 November
Climate normal for this date — 60-year average.
Average high40°
Average low29°
Average precipitation0.11 in
Chance of precipitation62%
Record high62° (1990)
Record low12° (2002)
Sat, 2840° / 28°0.22
40 °
Portville, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high40°
Average low28°
Average precipitation0.22 in
Chance of precipitation65%
Record high61° (1990)
Record low9° (1982)
Sun, 2937° / 26°0.09
37 °
Portville, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high37°
Average low26°
Average precipitation0.09 in
Chance of precipitation42%
Record high58° (2006)
Record low9° (1967)
Mon, 3038° / 26°0.12
38 °
Portville, Monday, 30 November
Climate normal for this date — 60-year average.
Average high38°
Average low26°
Average precipitation0.12 in
Chance of precipitation48%
Record high62° (1991)
Record low4° (1976)
Tue, 0137° / 26°0.15
37 °
Portville, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high37°
Average low26°
Average precipitation0.15 in
Chance of precipitation50%
Record high58° (2006)
Record low5° (1963)
Wed, 0237° / 25°0.12
37 °
Portville, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high37°
Average low25°
Average precipitation0.12 in
Chance of precipitation52%
Record high61° (1982)
Record low2° (1971)
Thu, 0337° / 24°0.13
37 °
Portville, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high37°
Average low24°
Average precipitation0.13 in
Chance of precipitation48%
Record high63° (1982)
Record low-2° (1966)
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 Portville, NY 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 Portville, NY 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.