Monthly outlook for Crystal Brook, NY: average high 59.3°, average low 50°. That is 1.7° above the climate normal for October. Precipitation is expected on 4 days (about 2.7 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 30 October (67.3°), the coolest 28 October (36.1°).
59.3°/50°
Average high / low
+1.7°
Above normal
4 / 5
Wet days / normal
2.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
26 October – 4 November
62°
57.3°
+2.6°
5 November – 14 November
54.8°
53.4°
+0.8°
15 November – 24 November
at normal
49.6°
—
October records over 66 years
89.4°2 October 2019All-time high
32.7°27 October 1976All-time low
Climate normals and records are computed from the nearest reference point — Stony Brook University (5 mi).
Tue, 2760° / 41°0
60 °
Crystal Brook, Tuesday, 27 October
Clear. High 60°, low 41°.
Pressure30.39 inHg
Wind13.4 mph N
Humidity53%
Visibility6.2 mi
Dew point35°
Wed, 2857° / 36°0
57 °
Crystal Brook, Wednesday, 28 October
Overcast. High 57°, low 36°.
Pressure30.47 inHg
Wind4.7 mph NE
Humidity70%
Visibility6.2 mi
Dew point42°
Thu, 2963° / 55°0
63 °
Crystal Brook, Thursday, 29 October
Clear. High 63°, low 55°.
Pressure30.27 inHg
Wind8.5 mph SW
Humidity76%
Visibility6.2 mi
Dew point52°
Fri, 3067° / 58°0
67 °
Crystal Brook, Friday, 30 October
Clear. High 67°, low 58°.
Pressure30.06 inHg
Wind11.4 mph SW
Humidity77%
Visibility6.2 mi
Dew point55°
Sat, 3162° / 52°0
62 °
Crystal Brook, Saturday, 31 October
Mostly clear. High 62°, low 52°.
Pressure30.36 inHg
Wind11.4 mph N
Humidity74%
Visibility—
Dew point45°
Sun, 0161° / 55°0
61 °
Crystal Brook, Sunday, 1 November
Overcast. High 61°, low 55°.
Pressure30.45 inHg
Wind9.1 mph S
Humidity56%
Visibility—
Dew point42°
Mon, 0262° / 58°0
62 °
Crystal Brook, Monday, 2 November
Overcast. High 62°, low 58°.
Pressure30.27 inHg
Wind6 mph S
Humidity78%
Visibility—
Dew point53°
Tue, 0362° / 57°0
62 °
Crystal Brook, Tuesday, 3 November
Overcast. High 62°, low 57°.
Pressure30.24 inHg
Wind22.9 mph E
Humidity80%
Visibility—
Dew point55°
Wed, 0460° / 57°0.99
60 °
Crystal Brook, Wednesday, 4 November
Rain. High 60°, low 57°.
Pressure30.00 inHg
Wind29.6 mph E
Humidity90%
Visibility—
Dew point55°
Thu, 0560° / 54°0.23
60 °
Crystal Brook, Thursday, 5 November
Light rain. High 60°, low 54°.
Pressure29.68 inHg
Wind18.3 mph N
Humidity89%
Visibility—
Dew point54°
Fri, 0659° / 52°0.01
59 °
Crystal Brook, Friday, 6 November
Light rain. High 59°, low 52°.
Pressure29.80 inHg
Wind10.2 mph NW
Humidity68%
Visibility—
Dew point44°
Sat, 0758° / 52°1.08
58 °
Crystal Brook, Saturday, 7 November
Heavy rain. High 58°, low 52°.
Pressure29.56 inHg
Wind16.4 mph SE
Humidity91%
Visibility—
Dew point52°
Sun, 0854° / 43°0.36
54 °
Crystal Brook, Sunday, 8 November
Rain. High 54°, low 43°.
Pressure29.47 inHg
Wind24 mph N
Humidity82%
Visibility—
Dew point43°
Mon, 0948° / 43°0
48 °
Crystal Brook, Monday, 9 November
Partly cloudy. High 48°, low 43°.
Pressure29.77 inHg
Wind25.6 mph N
Humidity66%
Visibility—
Dew point34°
Tue, 1051° / 43°0
51 °
Crystal Brook, Tuesday, 10 November
Mostly clear. High 51°, low 43°.
Pressure29.97 inHg
Wind20 mph N
Humidity62%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 1153° / 44°0.15
53 °
Crystal Brook, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high53°
Average low44°
Average precipitation0.15 in
Chance of precipitation37%
Record high69° (2024)
Record low26° (2017)
Thu, 1252° / 42°0.16
52 °
Crystal Brook, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high52°
Average low42°
Average precipitation0.16 in
Chance of precipitation38%
Record high69° (2022)
Record low30° (2019)
Fri, 1351° / 41°0.22
51 °
Crystal Brook, Friday, 13 November
Climate normal for this date — 60-year average.
Average high51°
Average low41°
Average precipitation0.22 in
Chance of precipitation40%
Record high66° (1964)
Record low24° (2019)
Sat, 1451° / 41°0.11
51 °
Crystal Brook, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high51°
Average low41°
Average precipitation0.11 in
Chance of precipitation22%
Record high64° (1989)
Record low26° (2019)
Sun, 1552° / 41°0.12
52 °
Crystal Brook, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high52°
Average low41°
Average precipitation0.12 in
Chance of precipitation42%
Record high71° (1993)
Record low25° (1967)
Mon, 1651° / 41°0.14
51 °
Crystal Brook, Monday, 16 November
Climate normal for this date — 60-year average.
Average high51°
Average low41°
Average precipitation0.14 in
Chance of precipitation38%
Record high65° (2006)
Record low24° (1967)
Tue, 1750° / 40°0.15
50 °
Crystal Brook, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high50°
Average low40°
Average precipitation0.15 in
Chance of precipitation33%
Record high65° (2006)
Record low31° (1967)
Wed, 1850° / 41°0.08
50 °
Crystal Brook, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high50°
Average low41°
Average precipitation0.08 in
Chance of precipitation27%
Record high63° (2024)
Record low29° (2014)
Thu, 1950° / 40°0.07
50 °
Crystal Brook, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high50°
Average low40°
Average precipitation0.07 in
Chance of precipitation25%
Record high61° (2021)
Record low25° (2014)
Fri, 2050° / 40°0.13
50 °
Crystal Brook, Friday, 20 November
Climate normal for this date — 60-year average.
Average high50°
Average low40°
Average precipitation0.13 in
Chance of precipitation28%
Record high66° (1985)
Record low28° (1986)
Sat, 2149° / 39°0.11
49 °
Crystal Brook, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high49°
Average low39°
Average precipitation0.11 in
Chance of precipitation33%
Record high61° (1991)
Record low21° (1987)
Sun, 2248° / 39°0.16
48 °
Crystal Brook, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high48°
Average low39°
Average precipitation0.16 in
Chance of precipitation40%
Record high61° (2007)
Record low20° (2018)
Mon, 2347° / 38°0.13
47 °
Crystal Brook, Monday, 23 November
Climate normal for this date — 60-year average.
Average high47°
Average low38°
Average precipitation0.13 in
Chance of precipitation22%
Record high64° (1992)
Record low19° (2018)
Tue, 2449° / 39°0.1
49 °
Crystal Brook, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high49°
Average low39°
Average precipitation0.1 in
Chance of precipitation33%
Record high62° (1979)
Record low25° (2013)
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.