Weather in Fair Harbor, NY
Fair Harbor, Sunday, 9 August, 00:00
Overcast. Feels like 80°. High 88°, low 76°.
Monthly outlook for Fair Harbor, NY: average high 80.6°, average low 71.7°. That is 1.4° above the climate normal for August. Precipitation is expected on 4 days (about 2.0 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 9 August (88°), the coolest 22 August (66.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 81.7° | 78.7° | +1.7° |
| 19 August – 28 August | 78.9° | 77.2° | +0.9° |
| 29 August – 7 September | at normal | 76° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Islip (7 mi).
0
Fair Harbor, Monday, 10 August
Clear. High 87°, low 75°.
0
Fair Harbor, Tuesday, 11 August
Light rain. High 87°, low 79°.
0.09Fair Harbor, Wednesday, 12 August
Light rain. High 80°, low 74°.
0.13Fair Harbor, Thursday, 13 August
Light rain. High 84°, low 73°.
0Fair Harbor, Friday, 14 August
Clear. High 78°, low 68°.
0Fair Harbor, Saturday, 15 August
Clear. High 81°, low 69°.
0Fair Harbor, Sunday, 16 August
Overcast. High 79°, low 68°.
0Fair Harbor, Monday, 17 August
Overcast. High 77°, low 73°.
0.13Fair Harbor, Tuesday, 18 August
Light rain. High 76°, low 69°.
0Fair Harbor, Wednesday, 19 August
Overcast. High 77°, low 72°.
1.68Fair Harbor, Thursday, 20 August
Heavy rain. High 80°, low 70°.
0Fair Harbor, Friday, 21 August
Overcast. High 78°, low 68°.
0Fair Harbor, Saturday, 22 August
Clear. High 78°, low 67°.
0Fair Harbor, Sunday, 23 August
Overcast. High 77°, low 72°.
0
Fair Harbor, Monday, 24 August
Partly cloudy. High 84°, low 75°.
0.09Fair Harbor, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.08Fair Harbor, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.12
Fair Harbor, Thursday, 27 August
Climate normal for this date — 60-year average.
0.19Fair Harbor, Friday, 28 August
Climate normal for this date — 60-year average.
0.14Fair Harbor, Saturday, 29 August
Climate normal for this date — 60-year average.
0.07Fair Harbor, Sunday, 30 August
Climate normal for this date — 60-year average.
0.05
Fair Harbor, Monday, 31 August
Climate normal for this date — 60-year average.
0.06Fair Harbor, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.19Fair Harbor, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.11Fair Harbor, Thursday, 3 September
Climate normal for this date — 60-year average.
0.13Fair Harbor, Friday, 4 September
Climate normal for this date — 60-year average.
0.05Fair Harbor, Saturday, 5 September
Climate normal for this date — 60-year average.
0.13Fair Harbor, Sunday, 6 September
Climate normal for this date — 60-year average.
0.08Fair Harbor, Monday, 7 September
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 Fair Harbor, 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 Fair Harbor, 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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