Weather in Great Valley, NY
Great Valley, Wednesday, 11 November, 01:44
Overcast. Feels like 39°. High 53°, low 39°.
Monthly outlook for Great Valley, NY: average high 42.4°, average low 30.7°. That is 0.5° above the climate normal for November. Precipitation is expected on 7 days (about 1.2 inches), against a normal of 8 days and 2.1 inches. The warmest day looks like 21 November (54.6°), the coolest 25 November (22.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 11 November – 20 November | 43.4° | 42.4° | +0.6° |
| 21 November – 30 November | 40.8° | 39.5° | +0.7° |
| 1 December – 10 December | at normal | 35° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Franklinville (10 mi).
0.28
Great Valley, Thursday, 12 November
Light rain. High 44°, low 34°.
0Great Valley, Friday, 13 November
Overcast. High 36°, low 27°.
0Great Valley, Saturday, 14 November
Overcast. High 36°, low 26°.
0.02
Great Valley, Sunday, 15 November
Snow. High 40°, low 32°.
0.08Great Valley, Monday, 16 November
Snow. High 39°, low 33°.
0
Great Valley, Tuesday, 17 November
Clear. High 43°, low 27°.
0Great Valley, Wednesday, 18 November
Clear. High 42°, low 28°.
0
Great Valley, Thursday, 19 November
Mostly clear. High 48°, low 28°.
0
Great Valley, Friday, 20 November
Partly cloudy. High 51°, low 31°.
0.07Great Valley, Saturday, 21 November
Light rain. High 55°, low 37°.
0.43Great Valley, Sunday, 22 November
Rain. High 47°, low 42°.
0.11Great Valley, Monday, 23 November
Snow. High 38°, low 31°.
0.13Great Valley, Tuesday, 24 November
Light snow. High 31°, low 26°.
0.08Great Valley, Wednesday, 25 November
Light snow. High 34°, low 23°.
0Great Valley, Thursday, 26 November
Overcast. High 41°, low 30°.
0.13Great Valley, Friday, 27 November
Climate normal for this date — 60-year average.
0.25Great Valley, Saturday, 28 November
Climate normal for this date — 60-year average.
0.1
Great Valley, Sunday, 29 November
Climate normal for this date — 60-year average.
0.13Great Valley, Monday, 30 November
Climate normal for this date — 60-year average.
0.17Great Valley, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.13Great Valley, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.13Great Valley, Thursday, 3 December
Climate normal for this date — 60-year average.
0.11Great Valley, Friday, 4 December
Climate normal for this date — 60-year average.
0.12Great Valley, Saturday, 5 December
Climate normal for this date — 60-year average.
0.15Great Valley, Sunday, 6 December
Climate normal for this date — 60-year average.
0.11Great Valley, Monday, 7 December
Climate normal for this date — 60-year average.
0.07Great Valley, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.15Great Valley, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.14Great Valley, Thursday, 10 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 Great Valley, 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 Great Valley, 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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