Monthly outlook for Crystal Brook, NY: average high 51.1°, average low 43.7°. That is 1° above the climate normal for November. Precipitation is expected on 1 day (about 1.4 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 28 November (61.2°), the coolest 24 November (30.2°).
51.1°/43.7°
Average high / low
+1°
Above normal
1 / 5
Wet days / normal
1.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 November – 24 November
51.9°
49.6°
+1.3°
25 November – 4 December
49.8°
47.6°
+1.2°
5 December – 14 December
at normal
43.5°
—
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).
Mon, 1650° / 41°0
50 °
Crystal Brook, Monday, 16 November
Overcast. High 50°, low 41°.
Pressure30.36 inHg
Wind12.5 mph NW
Humidity63%
Visibility6.2 mi
Dew point35°
Tue, 1752° / 43°0
52 °
Crystal Brook, Tuesday, 17 November
Clear. High 52°, low 43°.
Pressure30.47 inHg
Wind10 mph W
Humidity72%
Visibility6.2 mi
Dew point39°
Wed, 1856° / 47°0
56 °
Crystal Brook, Wednesday, 18 November
Mostly clear. High 56°, low 47°.
Pressure30.42 inHg
Wind8.9 mph W
Humidity64%
Visibility6.2 mi
Dew point39°
Thu, 1957° / 48°0
57 °
Crystal Brook, Thursday, 19 November
Overcast. High 57°, low 48°.
Pressure30.39 inHg
Wind11.9 mph SW
Humidity80%
Visibility—
Dew point44°
Fri, 2058° / 50°0
58 °
Crystal Brook, Friday, 20 November
Clear. High 58°, low 50°.
Pressure30.21 inHg
Wind12.8 mph W
Humidity67%
Visibility—
Dew point42°
Sat, 2154° / 50°0
54 °
Crystal Brook, Saturday, 21 November
Clear. High 54°, low 50°.
Pressure30.36 inHg
Wind12.3 mph N
Humidity70%
Visibility—
Dew point42°
Sun, 2256° / 53°0.01
56 °
Crystal Brook, Sunday, 22 November
Light rain. High 56°, low 53°.
Pressure30.18 inHg
Wind8.2 mph SE
Humidity76%
Visibility—
Dew point47°
Mon, 2355° / 39°0.01
55 °
Crystal Brook, Monday, 23 November
Light rain. High 55°, low 39°.
Pressure29.65 inHg
Wind22.8 mph W
Humidity69%
Visibility—
Dew point43°
Tue, 2435° / 30°0
35 °
Crystal Brook, Tuesday, 24 November
Overcast. High 35°, low 30°.
Pressure30.06 inHg
Wind23.7 mph NW
Humidity55%
Visibility—
Dew point17°
Wed, 2542° / 32°0
42 °
Crystal Brook, Wednesday, 25 November
Clear. High 42°, low 32°.
Pressure30.50 inHg
Wind18 mph N
Humidity42%
Visibility—
Dew point14°
Thu, 2644° / 36°0
44 °
Crystal Brook, Thursday, 26 November
Overcast. High 44°, low 36°.
Pressure30.56 inHg
Wind8.8 mph SW
Humidity44%
Visibility—
Dew point19°
Fri, 2753° / 42°0
53 °
Crystal Brook, Friday, 27 November
Overcast. High 53°, low 42°.
Pressure30.50 inHg
Wind14 mph SE
Humidity48%
Visibility—
Dew point26°
Sat, 2861° / 54°1.34
61 °
Crystal Brook, Saturday, 28 November
Heavy rain. High 61°, low 54°.
Pressure29.83 inHg
Wind35.6 mph SE
Humidity92%
Visibility—
Dew point57°
Sun, 2953° / 47°0
53 °
Crystal Brook, Sunday, 29 November
Clear. High 53°, low 47°.
Pressure29.83 inHg
Wind19.7 mph W
Humidity64%
Visibility—
Dew point39°
Mon, 3045° / 45°0
45 °
Crystal Brook, Monday, 30 November
Overcast. High 45°, low 45°.
Pressure29.91 inHg
Wind18.9 mph W
Humidity72%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Sat, 1243° / 33°0.16
43 °
Crystal Brook, Saturday, 12 December
Climate normal for this date — 60-year average.
Average high43°
Average low33°
Average precipitation0.16 in
Chance of precipitation43%
Record high61° (2021)
Record low10° (1988)
Sun, 1343° / 33°0.11
43 °
Crystal Brook, Sunday, 13 December
Climate normal for this date — 60-year average.
Average high43°
Average low33°
Average precipitation0.11 in
Chance of precipitation33%
Record high60° (2020)
Record low11° (1960)
Mon, 1442° / 33°0.19
42 °
Crystal Brook, Monday, 14 December
Climate normal for this date — 60-year average.
Average high42°
Average low33°
Average precipitation0.19 in
Chance of precipitation42%
Record high58° (2015)
Record low16° (1976)
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.