Weather in Mount Sinai, NY
Mount Sinai, Saturday, 31 October, 23:33
Mostly clear. Feels like 44°. High 57°, low 41°.
Monthly outlook for Mount Sinai, NY: average high 58.9°, average low 50.5°. That is 2.5° above the climate normal for October. Precipitation is expected on 7 days (about 4.4 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 2 November (68.3°), the coolest 1 November (37.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 31 October – 9 November | 62.6° | 55.9° | +3.7° |
| 10 November – 19 November | 52.8° | 51.4° | +0.8° |
| 20 November – 29 November | at normal | 48.8° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Stony Brook University (6 mi).
0
Mount Sinai, Sunday, 1 November
Partly cloudy. High 61°, low 38°.
0
Mount Sinai, Monday, 2 November
Overcast. High 68°, low 43°.
0Mount Sinai, Tuesday, 3 November
Overcast. High 63°, low 53°.
0
Mount Sinai, Wednesday, 4 November
Clear. High 66°, low 57°.
0.03
Mount Sinai, Thursday, 5 November
Light rain. High 68°, low 60°.
0.23Mount Sinai, Friday, 6 November
Light rain. High 67°, low 61°.
0.5Mount Sinai, Saturday, 7 November
Light rain. High 63°, low 59°.
0.45Mount Sinai, Sunday, 8 November
Rain. High 60°, low 55°.
0.47Mount Sinai, Monday, 9 November
Rain. High 52°, low 49°.
0.08Mount Sinai, Tuesday, 10 November
Light rain. High 51°, low 49°.
0.03Mount Sinai, Wednesday, 11 November
Light rain. High 51°, low 48°.
0Mount Sinai, Thursday, 12 November
Overcast. High 51°, low 46°.
0.01Mount Sinai, Friday, 13 November
Light rain. High 52°, low 48°.
2.46Mount Sinai, Saturday, 14 November
Heavy rain. High 57°, low 51°.
0.12Mount Sinai, Sunday, 15 November
Light rain. High 54°, low 50°.
0.14
Mount Sinai, Monday, 16 November
Climate normal for this date — 60-year average.
0.15Mount Sinai, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.08Mount Sinai, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.07Mount Sinai, Thursday, 19 November
Climate normal for this date — 60-year average.
0.13Mount Sinai, Friday, 20 November
Climate normal for this date — 60-year average.
0.11Mount Sinai, Saturday, 21 November
Climate normal for this date — 60-year average.
0.16Mount Sinai, Sunday, 22 November
Climate normal for this date — 60-year average.
0.13Mount Sinai, Monday, 23 November
Climate normal for this date — 60-year average.
0.1Mount Sinai, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.15Mount 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.
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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