Weather in Islip Terrace, NY
Islip Terrace, Friday, 13 November, 15:42
Overcast. Feels like 38°. High 45°, low 39°.
Monthly outlook for Islip Terrace, NY: average high 49.4°, average low 39.6°. That is 0.6° below the climate normal for November. Precipitation is expected on 1 day (about 0.2 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 20 November (59.6°), the coolest 26 November (33.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 13 November – 22 November | 52.3° | 50.9° | +0.8° |
| 23 November – 2 December | 44.5° | 48.9° | -2.5° |
| 3 December – 12 December | at normal | 45° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Islip (1 mi).
0Islip Terrace, Saturday, 14 November
Overcast. High 46°, low 36°.
0
Islip Terrace, Sunday, 15 November
Partly cloudy. High 48°, low 38°.
0
Islip Terrace, Monday, 16 November
Mostly clear. High 48°, low 36°.
0
Islip Terrace, Tuesday, 17 November
Clear. High 50°, low 35°.
0Islip Terrace, Wednesday, 18 November
Clear. High 55°, low 38°.
0Islip Terrace, Thursday, 19 November
Clear. High 57°, low 42°.
0Islip Terrace, Friday, 20 November
Overcast. High 60°, low 51°.
0Islip Terrace, Saturday, 21 November
Clear. High 57°, low 49°.
0.03
Islip Terrace, Sunday, 22 November
Light rain. High 58°, low 47°.
0Islip Terrace, Monday, 23 November
Clear. High 44°, low 40°.
0Islip Terrace, Tuesday, 24 November
Clear. High 41°, low 35°.
0Islip Terrace, Wednesday, 25 November
Clear. High 41°, low 35°.
0Islip Terrace, Thursday, 26 November
Clear. High 44°, low 34°.
0Islip Terrace, Friday, 27 November
Partly cloudy. High 48°, low 38°.
0Islip Terrace, Saturday, 28 November
Clear. High 49°, low 40°.
0.1Islip Terrace, Sunday, 29 November
Climate normal for this date — 60-year average.
0.14
Islip Terrace, Monday, 30 November
Climate normal for this date — 60-year average.
0.14Islip Terrace, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.14Islip Terrace, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.15Islip Terrace, Thursday, 3 December
Climate normal for this date — 60-year average.
0.11Islip Terrace, Friday, 4 December
Climate normal for this date — 60-year average.
0.18Islip Terrace, Saturday, 5 December
Climate normal for this date — 60-year average.
0.19Islip Terrace, Sunday, 6 December
Climate normal for this date — 60-year average.
0.16Islip Terrace, Monday, 7 December
Climate normal for this date — 60-year average.
0.12Islip Terrace, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.24Islip Terrace, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.15Islip Terrace, Thursday, 10 December
Climate normal for this date — 60-year average.
0.27Islip Terrace, Friday, 11 December
Climate normal for this date — 60-year average.
0.15Islip Terrace, Saturday, 12 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 Islip Terrace, 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 Islip Terrace, 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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