Monthly outlook for Crystal Brook, NY: average high 53.4°, average low 45.9°. That is 2° above the climate normal for November. Precipitation is expected on 4 days (about 1.4 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 25 November (63.6°), the coolest 27 November (37.7°).
53.4°/45.9°
Average high / low
+2°
Above normal
4 / 5
Wet days / normal
1.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 November – 21 November
53.1°
50.5°
+1.4°
22 November – 1 December
53.8°
48.3°
+3.1°
2 December – 11 December
at normal
44.4°
—
November records over 66 years
79.9°1 November 2024All-time high
18.9°23 November 2018All-time low
Climate normals and records are computed from the nearest reference point — Stony Brook University (5 mi).
Fri, 1350° / 39°0.48
50 °
Crystal Brook, Friday, 13 November
Rain. High 50°, low 39°.
Pressure29.59 inHg
Wind22.1 mph N
Humidity86%
Visibility2.1 mi
Dew point39°
Sat, 1448° / 41°0
48 °
Crystal Brook, Saturday, 14 November
Overcast. High 48°, low 41°.
Pressure29.77 inHg
Wind16.4 mph NW
Humidity59%
Visibility6.2 mi
Dew point31°
Sun, 1548° / 44°0
48 °
Crystal Brook, Sunday, 15 November
Clear. High 48°, low 44°.
Pressure30.06 inHg
Wind20.4 mph NW
Humidity57%
Visibility6.2 mi
Dew point33°
Mon, 1649° / 42°0
49 °
Crystal Brook, Monday, 16 November
Overcast. High 49°, low 42°.
Pressure30.39 inHg
Wind15.4 mph NW
Humidity64%
Visibility—
Dew point33°
Tue, 1752° / 43°0
52 °
Crystal Brook, Tuesday, 17 November
Clear. High 52°, low 43°.
Pressure30.45 inHg
Wind11.1 mph SW
Humidity78%
Visibility—
Dew point37°
Wed, 1854° / 45°0
54 °
Crystal Brook, Wednesday, 18 November
Clear. High 54°, low 45°.
Pressure30.42 inHg
Wind8.5 mph W
Humidity63%
Visibility—
Dew point35°
Thu, 1955° / 48°0
55 °
Crystal Brook, Thursday, 19 November
Clear. High 55°, low 48°.
Pressure30.39 inHg
Wind6.8 mph W
Humidity60%
Visibility—
Dew point37°
Fri, 2056° / 51°0
56 °
Crystal Brook, Friday, 20 November
Overcast. High 56°, low 51°.
Pressure30.30 inHg
Wind12.8 mph SW
Humidity55%
Visibility—
Dew point37°
Sat, 2158° / 52°0
58 °
Crystal Brook, Saturday, 21 November
Overcast. High 58°, low 52°.
Pressure30.12 inHg
Wind12.6 mph SW
Humidity61%
Visibility—
Dew point42°
Sun, 2256° / 50°0
56 °
Crystal Brook, Sunday, 22 November
Mostly clear. High 56°, low 50°.
Pressure30.15 inHg
Wind8.4 mph E
Humidity77%
Visibility—
Dew point46°
Mon, 2358° / 52°0
58 °
Crystal Brook, Monday, 23 November
Overcast. High 58°, low 52°.
Pressure29.97 inHg
Wind7.5 mph S
Humidity88%
Visibility—
Dew point52°
Tue, 2455° / 54°0
55 °
Crystal Brook, Tuesday, 24 November
Overcast. High 55°, low 54°.
Pressure29.97 inHg
Wind6.4 mph NW
Humidity84%
Visibility—
Dew point50°
Wed, 2564° / 48°0.28
64 °
Crystal Brook, Wednesday, 25 November
Rain. High 64°, low 48°.
Pressure29.83 inHg
Wind18.7 mph S
Humidity96%
Visibility—
Dew point58°
Thu, 2646° / 39°0.27
46 °
Crystal Brook, Thursday, 26 November
Rain. High 46°, low 39°.
Pressure30.06 inHg
Wind23.7 mph W
Humidity53%
Visibility—
Dew point26°
Fri, 2744° / 38°0
44 °
Crystal Brook, Friday, 27 November
Overcast. High 44°, low 38°.
Pressure30.53 inHg
Wind16.4 mph NW
Humidity46%
Visibility—
Dew point21°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2850° / 40°0.17
50 °
Crystal Brook, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high50°
Average low40°
Average precipitation0.17 in
Chance of precipitation35%
Record high62° (1990)
Record low24° (2002)
Sun, 2948° / 38°0.11
48 °
Crystal Brook, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high48°
Average low38°
Average precipitation0.11 in
Chance of precipitation32%
Record high63° (2011)
Record low26° (2023)
Mon, 3047° / 37°0.15
47 °
Crystal Brook, Monday, 30 November
Climate normal for this date — 60-year average.
Average high47°
Average low37°
Average precipitation0.15 in
Chance of precipitation33%
Record high64° (2020)
Record low25° (1976)
Tue, 0147° / 37°0.14
47 °
Crystal Brook, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high47°
Average low37°
Average precipitation0.14 in
Chance of precipitation37%
Record high64° (2001)
Record low23° (1964)
Wed, 0246° / 36°0.14
46 °
Crystal Brook, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high46°
Average low36°
Average precipitation0.14 in
Chance of precipitation32%
Record high61° (2023)
Record low21° (1989)
Thu, 0346° / 36°0.15
46 °
Crystal Brook, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high46°
Average low36°
Average precipitation0.15 in
Chance of precipitation33%
Record high60° (2009)
Record low16° (1976)
Fri, 0445° / 35°0.12
45 °
Crystal Brook, Friday, 4 December
Climate normal for this date — 60-year average.
Average high45°
Average low35°
Average precipitation0.12 in
Chance of precipitation23%
Record high65° (1998)
Record low17° (1989)
Sat, 0544° / 35°0.17
44 °
Crystal Brook, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high44°
Average low35°
Average precipitation0.17 in
Chance of precipitation30%
Record high63° (2001)
Record low19° (2025)
Sun, 0645° / 36°0.18
45 °
Crystal Brook, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high45°
Average low36°
Average precipitation0.18 in
Chance of precipitation48%
Record high63° (2001)
Record low24° (2007)
Mon, 0744° / 35°0.15
44 °
Crystal Brook, Monday, 7 December
Climate normal for this date — 60-year average.
Average high44°
Average low35°
Average precipitation0.15 in
Chance of precipitation33%
Record high68° (1998)
Record low22° (1964)
Tue, 0842° / 33°0.11
42 °
Crystal Brook, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high42°
Average low33°
Average precipitation0.11 in
Chance of precipitation33%
Record high56° (1966)
Record low20° (2006)
Wed, 0944° / 33°0.24
44 °
Crystal Brook, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high44°
Average low33°
Average precipitation0.24 in
Chance of precipitation40%
Record high60° (1991)
Record low16° (1968)
Thu, 1044° / 35°0.13
44 °
Crystal Brook, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high44°
Average low35°
Average precipitation0.13 in
Chance of precipitation42%
Record high60° (2023)
Record low11° (1968)
Fri, 1143° / 34°0.26
43 °
Crystal Brook, Friday, 11 December
Climate normal for this date — 60-year average.
Average high43°
Average low34°
Average precipitation0.26 in
Chance of precipitation43%
Record high61° (2021)
Record low15° (1977)
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 Crystal Brook, 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 Crystal Brook, 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.