Weather in Great Valley, NY
Great Valley, Friday, 13 November, 16:24
Overcast. Feels like 28°. High 36°, low 33°.
Monthly outlook for Great Valley, NY: average high 41.4°, average low 29.3°. That is 0.2° above the climate normal for November. Precipitation is expected on 6 days (about 1.0 inches), against a normal of 8 days and 2.1 inches. The warmest day looks like 21 November (58.5°), the coolest 25 November (20.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 13 November – 22 November | 45.7° | 41.6° | +2.3° |
| 23 November – 2 December | 34.1° | 38.9° | -2.7° |
| 3 December – 12 December | at normal | 34.4° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Franklinville (10 mi).
0.19
Great Valley, Saturday, 14 November
Snow. High 38°, low 33°.
0.11Great Valley, Sunday, 15 November
Snow. High 36°, low 33°.
0Great Valley, Monday, 16 November
Overcast. High 40°, low 34°.
0Great Valley, Tuesday, 17 November
Overcast. High 47°, low 33°.
0
Great Valley, Wednesday, 18 November
Clear. High 51°, low 32°.
0Great Valley, Thursday, 19 November
Overcast. High 50°, low 33°.
0
Great Valley, Friday, 20 November
Mostly clear. High 52°, low 41°.
0Great Valley, Saturday, 21 November
Overcast. High 58°, low 40°.
0.12Great Valley, Sunday, 22 November
Snow. High 48°, low 29°.
0.15Great Valley, Monday, 23 November
Light snow. High 30°, low 22°.
0.35Great Valley, Tuesday, 24 November
Snow. High 30°, low 21°.
0.07Great Valley, Wednesday, 25 November
Light snow. High 31°, low 21°.
0Great Valley, Thursday, 26 November
Overcast. High 33°, low 22°.
0Great Valley, Friday, 27 November
Overcast. High 36°, low 22°.
0Great Valley, Saturday, 28 November
Clear. High 45°, low 21°.
0.1
Great Valley, Sunday, 29 November
Climate normal for this date — 60-year average.
0.13
Great 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.
0.17Great Valley, Friday, 11 December
Climate normal for this date — 60-year average.
0.1Great Valley, 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 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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