Monthly outlook for Great Valley, NY: average high 52.9°, average low 38.3°. That is 3.2° above the climate normal for October. Precipitation is expected on 5 days (about 1.4 inches), against a normal of 7 days and 1.9 inches. The warmest day looks like 3 November (67.1°), the coolest 12 November (26.1°).
52.9°/38.3°
Average high / low
+3.2°
Above normal
5 / 7
Wet days / normal
1.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
30 October – 8 November
57.9°
49°
+4.9°
9 November – 18 November
44.7°
43.3°
+0.8°
19 November – 28 November
at normal
40.3°
—
October records over 66 years
80.4°1 October 2019All-time high
18.7°20 October 1972All-time low
Climate normals and records are computed from the nearest reference point — Franklinville (10 mi).
Sat, 3156° / 39°0
56 °
Great Valley, Saturday, 31 October
Partly cloudy. High 56°, low 39°.
Pressure30.50 inHg
Wind7.3 mph NW
Humidity59%
Visibility6.2 mi
Dew point35°
Sun, 0164° / 37°0
64 °
Great Valley, Sunday, 1 November
Partly cloudy. High 64°, low 37°.
Pressure30.47 inHg
Wind5.6 mph S
Humidity42%
Visibility6.2 mi
Dew point36°
Mon, 0267° / 46°0
67 °
Great Valley, Monday, 2 November
Clear. High 67°, low 46°.
Pressure30.33 inHg
Wind5.9 mph SW
Humidity54%
Visibility6.2 mi
Dew point46°
Tue, 0367° / 51°0
67 °
Great Valley, Tuesday, 3 November
Overcast. High 67°, low 51°.
Pressure30.18 inHg
Wind8 mph S
Humidity49%
Visibility6.2 mi
Dew point43°
Wed, 0466° / 53°0
66 °
Great Valley, Wednesday, 4 November
Overcast. High 66°, low 53°.
Pressure30.03 inHg
Wind13 mph S
Humidity58%
Visibility—
Dew point46°
Thu, 0559° / 57°0.29
59 °
Great Valley, Thursday, 5 November
Rain. High 59°, low 57°.
Pressure29.80 inHg
Wind12.7 mph S
Humidity94%
Visibility—
Dew point56°
Fri, 0656° / 46°0.76
56 °
Great Valley, Friday, 6 November
Rain. High 56°, low 46°.
Pressure29.50 inHg
Wind10 mph N
Humidity98%
Visibility—
Dew point54°
Sat, 0745° / 33°0
45 °
Great Valley, Saturday, 7 November
Overcast. High 45°, low 33°.
Pressure29.88 inHg
Wind10.7 mph NW
Humidity91%
Visibility—
Dew point37°
Sun, 0842° / 31°0
42 °
Great Valley, Sunday, 8 November
Overcast. High 42°, low 31°.
Pressure30.27 inHg
Wind10.1 mph N
Humidity67%
Visibility—
Dew point26°
Mon, 0944° / 28°0
44 °
Great Valley, Monday, 9 November
Overcast. High 44°, low 28°.
Pressure30.30 inHg
Wind4.3 mph N
Humidity46%
Visibility—
Dew point19°
Tue, 1046° / 32°0.01
46 °
Great Valley, Tuesday, 10 November
Light rain. High 46°, low 32°.
Pressure30.03 inHg
Wind5 mph E
Humidity44%
Visibility—
Dew point20°
Wed, 1141° / 26°0.18
41 °
Great Valley, Wednesday, 11 November
Snow. High 41°, low 26°.
Pressure29.85 inHg
Wind9.1 mph NE
Humidity83%
Visibility—
Dew point32°
Thu, 1243° / 26°0
43 °
Great Valley, Thursday, 12 November
Clear. High 43°, low 26°.
Pressure29.94 inHg
Wind6.2 mph NW
Humidity70%
Visibility—
Dew point27°
Fri, 1348° / 31°0
48 °
Great Valley, Friday, 13 November
Overcast. High 48°, low 31°.
Pressure30.06 inHg
Wind4 mph E
Humidity75%
Visibility—
Dew point34°
Sat, 1446° / 32°0.06
46 °
Great Valley, Saturday, 14 November
Light rain. High 46°, low 32°.
Pressure29.97 inHg
Wind11.5 mph SE
Humidity67%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 1543° / 30°0.19
43 °
Great Valley, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high43°
Average low30°
Average precipitation0.19 in
Chance of precipitation57%
Record high60° (1964)
Record low4° (1996)
Mon, 1642° / 29°0.15
42 °
Great Valley, Monday, 16 November
Climate normal for this date — 60-year average.
Average high42°
Average low29°
Average precipitation0.15 in
Chance of precipitation47%
Record high60° (1990)
Record low-1° (1967)
Tue, 1742° / 30°0.15
42 °
Great Valley, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high42°
Average low30°
Average precipitation0.15 in
Chance of precipitation55%
Record high58° (2021)
Record low20° (1980)
Wed, 1842° / 30°0.08
42 °
Great Valley, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high42°
Average low30°
Average precipitation0.08 in
Chance of precipitation40%
Record high65° (2016)
Record low6° (2014)
Thu, 1942° / 29°0.11
42 °
Great Valley, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high42°
Average low29°
Average precipitation0.11 in
Chance of precipitation40%
Record high65° (1985)
Record low3° (2014)
Fri, 2041° / 29°0.13
41 °
Great Valley, Friday, 20 November
Climate normal for this date — 60-year average.
Average high41°
Average low29°
Average precipitation0.13 in
Chance of precipitation58%
Record high65° (1991)
Record low10° (1986)
Sat, 2139° / 28°0.11
39 °
Great Valley, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high39°
Average low28°
Average precipitation0.11 in
Chance of precipitation53%
Record high55° (2003)
Record low10° (2008)
Sun, 2240° / 27°0.14
40 °
Great Valley, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high40°
Average low27°
Average precipitation0.14 in
Chance of precipitation55%
Record high61° (1999)
Record low-2° (2018)
Mon, 2341° / 27°0.07
41 °
Great Valley, Monday, 23 November
Climate normal for this date — 60-year average.
Average high41°
Average low27°
Average precipitation0.07 in
Chance of precipitation35%
Record high62° (1979)
Record low0° (2018)
Tue, 2440° / 27°0.11
40 °
Great Valley, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high40°
Average low27°
Average precipitation0.11 in
Chance of precipitation47%
Record high58° (1979)
Record low-4° (2000)
Wed, 2540° / 28°0.1
40 °
Great Valley, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high40°
Average low28°
Average precipitation0.1 in
Chance of precipitation52%
Record high56° (2001)
Record low11° (2005)
Thu, 2641° / 29°0.2
41 °
Great Valley, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high41°
Average low29°
Average precipitation0.2 in
Chance of precipitation58%
Record high59° (2006)
Record low15° (1974)
Fri, 2740° / 29°0.13
40 °
Great Valley, Friday, 27 November
Climate normal for this date — 60-year average.
Average high40°
Average low29°
Average precipitation0.13 in
Chance of precipitation63%
Record high63° (1990)
Record low10° (1996)
Sat, 2839° / 28°0.25
39 °
Great Valley, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high39°
Average low28°
Average precipitation0.25 in
Chance of precipitation68%
Record high63° (1990)
Record low1° (1996)
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 Great Valley, 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 Great Valley, 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.