Weather in Hornellsville, NY
Hornellsville, Sunday, 9 August, 08:09
Clear. Feels like 68°. High 83°, low 66°.
Monthly outlook for Hornellsville, NY: average high 77.6°, average low 57.9°. That is 0.4° above the climate normal for August. Precipitation is expected on 4 days (about 1.0 inches), against a normal of 6 days and 1.7 inches. The warmest day looks like 21 August (89.7°), the coolest 15 August (44.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 74.8° | 77.5° | -1.5° |
| 19 August – 28 August | 82.4° | 76.4° | +3.3° |
| 29 August – 7 September | at normal | 74.9° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Hornell (1 mi).
0.1
Hornellsville, Monday, 10 August
Rain. High 83°, low 65°.
0Hornellsville, Tuesday, 11 August
Light rain. High 79°, low 62°.
0.09Hornellsville, Wednesday, 12 August
Light rain. High 76°, low 62°.
0.02Hornellsville, Thursday, 13 August
Light rain. High 70°, low 57°.
0.02Hornellsville, Friday, 14 August
Light rain. High 64°, low 46°.
0Hornellsville, Saturday, 15 August
Clear. High 69°, low 45°.
0
Hornellsville, Sunday, 16 August
Overcast. High 71°, low 49°.
0.02Hornellsville, Monday, 17 August
Light rain. High 76°, low 54°.
0
Hornellsville, Tuesday, 18 August
Partly cloudy. High 77°, low 55°.
0Hornellsville, Wednesday, 19 August
Partly cloudy. High 81°, low 55°.
0Hornellsville, Thursday, 20 August
Partly cloudy. High 87°, low 61°.
0.04Hornellsville, Friday, 21 August
Light rain. High 90°, low 65°.
0Hornellsville, Saturday, 22 August
Overcast. High 81°, low 62°.
0.03Hornellsville, Sunday, 23 August
Light rain. High 88°, low 63°.
0.67Hornellsville, Monday, 24 August
Rain. High 68°, low 62°.
0.06Hornellsville, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.07Hornellsville, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.11
Hornellsville, Thursday, 27 August
Climate normal for this date — 60-year average.
0.16Hornellsville, Friday, 28 August
Climate normal for this date — 60-year average.
0.14Hornellsville, Saturday, 29 August
Climate normal for this date — 60-year average.
0.11Hornellsville, Sunday, 30 August
Climate normal for this date — 60-year average.
0.11Hornellsville, Monday, 31 August
Climate normal for this date — 60-year average.
0.08Hornellsville, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.14Hornellsville, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.09Hornellsville, Thursday, 3 September
Climate normal for this date — 60-year average.
0.07Hornellsville, Friday, 4 September
Climate normal for this date — 60-year average.
0.09Hornellsville, Saturday, 5 September
Climate normal for this date — 60-year average.
0.11Hornellsville, Sunday, 6 September
Climate normal for this date — 60-year average.
0.12Hornellsville, 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 Hornellsville, 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 Hornellsville, 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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