Weather in Mount Sinai, NY
Mount Sinai, Monday, 9 November, 06:01
Clear. Feels like 43°. High 57°, low 47°.
Monthly outlook for Mount Sinai, NY: average high 53.7°, average low 47.5°. That is 1.7° above the climate normal for November. Precipitation is expected on 1 day (about 0.7 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 23 November (60.2°), the coolest 14 November (41.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 November – 18 November | 51.6° | 51.8° | -0.1° |
| 19 November – 28 November | 57.2° | 49.1° | +4.5° |
| 29 November – 8 December | at normal | 45.4° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Stony Brook University (6 mi).
0
Mount Sinai, Tuesday, 10 November
Overcast. High 59°, low 45°.
0
Mount Sinai, Wednesday, 11 November
Partly cloudy. High 57°, low 51°.
0.02
Mount Sinai, Thursday, 12 November
Light rain. High 55°, low 50°.
0.02Mount Sinai, Friday, 13 November
Light rain. High 49°, low 44°.
0.01Mount Sinai, Saturday, 14 November
Light rain. High 48°, low 41°.
0Mount Sinai, Sunday, 15 November
Overcast. High 46°, low 44°.
0Mount Sinai, Monday, 16 November
Light rain. High 46°, low 44°.
0
Mount Sinai, Tuesday, 17 November
Clear. High 48°, low 41°.
0Mount Sinai, Wednesday, 18 November
Clear. High 51°, low 42°.
0Mount Sinai, Thursday, 19 November
Overcast. High 54°, low 46°.
0Mount Sinai, Friday, 20 November
Overcast. High 53°, low 46°.
0Mount Sinai, Saturday, 21 November
Overcast. High 58°, low 51°.
0Mount Sinai, Sunday, 22 November
Overcast. High 60°, low 55°.
0.58Mount Sinai, Monday, 23 November
Rain. High 60°, low 58°.
0Mount Sinai, Tuesday, 24 November
Overcast. High 58°, low 54°.
0.15
Mount Sinai, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.22Mount Sinai, Thursday, 26 November
Climate normal for this date — 60-year average.
0.13Mount Sinai, Friday, 27 November
Climate normal for this date — 60-year average.
0.17Mount Sinai, Saturday, 28 November
Climate normal for this date — 60-year average.
0.11Mount Sinai, Sunday, 29 November
Climate normal for this date — 60-year average.
0.15Mount Sinai, Monday, 30 November
Climate normal for this date — 60-year average.
0.14Mount Sinai, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.14Mount Sinai, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.15Mount Sinai, Thursday, 3 December
Climate normal for this date — 60-year average.
0.12Mount Sinai, Friday, 4 December
Climate normal for this date — 60-year average.
0.17Mount Sinai, Saturday, 5 December
Climate normal for this date — 60-year average.
0.18Mount Sinai, Sunday, 6 December
Climate normal for this date — 60-year average.
0.15Mount Sinai, Monday, 7 December
Climate normal for this date — 60-year average.
0.11Mount Sinai, Tuesday, 8 December
Climate normal for this date — 60-year average.
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 Mount Sinai, 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 Mount Sinai, 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.
Sun and moon today
Weather history
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