Weather in Mount Sinai, NY
Mount Sinai, Sunday, 15 November, 06:38
Clear. Feels like 31°. High 47°, low 38°.
Monthly outlook for Mount Sinai, NY: average high 52°, average low 44.5°. That is 1.5° above the climate normal for November. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 20 November (56.8°), the coolest 24 November (35°).
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 | 52.1° | 47.6° | +2.5° |
| 5 December – 14 December | at normal | 43.5° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Stony Brook University (6 mi).
0
Mount Sinai, Monday, 16 November
Overcast. High 46°, low 38°.
0
Mount Sinai, Tuesday, 17 November
Clear. High 51°, low 42°.
0
Mount Sinai, Wednesday, 18 November
Mostly clear. High 56°, low 47°.
0
Mount Sinai, Thursday, 19 November
Partly cloudy. High 57°, low 48°.
0Mount Sinai, Friday, 20 November
Clear. High 57°, low 50°.
0Mount Sinai, Saturday, 21 November
Clear. High 54°, low 50°.
0Mount Sinai, Sunday, 22 November
Overcast. High 57°, low 52°.
0Mount Sinai, Monday, 23 November
Mostly clear. High 54°, low 40°.
0Mount Sinai, Tuesday, 24 November
Clear. High 42°, low 35°.
0Mount Sinai, Wednesday, 25 November
Mostly clear. High 47°, low 40°.
0Mount Sinai, Thursday, 26 November
Partly cloudy. High 50°, low 42°.
0Mount Sinai, Friday, 27 November
Clear. High 53°, low 46°.
0Mount Sinai, Saturday, 28 November
Clear. High 54°, low 48°.
0Mount Sinai, Sunday, 29 November
Overcast. High 55°, low 49°.
0Mount Sinai, Monday, 30 November
Partly cloudy. High 53°, low 48°.
0.14
Mount 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.
0.24Mount Sinai, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.13Mount Sinai, Thursday, 10 December
Climate normal for this date — 60-year average.
0.26Mount Sinai, Friday, 11 December
Climate normal for this date — 60-year average.
0.16Mount Sinai, Saturday, 12 December
Climate normal for this date — 60-year average.
0.11Mount Sinai, Sunday, 13 December
Climate normal for this date — 60-year average.
0.19Mount Sinai, Monday, 14 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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