Weather in Great Valley, NY
Great Valley, Sunday, 25 October, 14:01
Clear. Feels like 55°. High 59°, low 33°.
Monthly outlook for Great Valley, NY: average high 57.3°, average low 43.9°. That is 4.4° above the climate normal for October. Precipitation is expected on 7 days (about 1.5 inches), against a normal of 7 days and 1.9 inches. The warmest day looks like 1 November (68.1°), the coolest 25 October (33.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 25 October – 3 November | 61.2° | 50.8° | +5.8° |
| 4 November – 13 November | 50.8° | 45.8° | +2.8° |
| 14 November – 23 November | at normal | 41.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Franklinville (10 mi).
0
Great Valley, Monday, 26 October
Mostly clear. High 64°, low 40°.
0Great Valley, Tuesday, 27 October
Clear. High 53°, low 37°.
0.01
Great Valley, Wednesday, 28 October
Light rain. High 61°, low 38°.
0Great Valley, Thursday, 29 October
Clear. High 65°, low 47°.
0.02Great Valley, Friday, 30 October
Light rain. High 57°, low 46°.
0.02Great Valley, Saturday, 31 October
Light rain. High 64°, low 46°.
0
Great Valley, Sunday, 1 November
Overcast. High 68°, low 50°.
0.1Great Valley, Monday, 2 November
Light rain. High 57°, low 53°.
0.02Great Valley, Tuesday, 3 November
Light rain. High 64°, low 57°.
0.52Great Valley, Wednesday, 4 November
Rain. High 63°, low 53°.
0.1Great Valley, Thursday, 5 November
Light rain. High 48°, low 45°.
0.22Great Valley, Friday, 6 November
Light rain. High 46°, low 42°.
0.04Great Valley, Saturday, 7 November
Light rain. High 46°, low 40°.
0.11Great Valley, Sunday, 8 November
Light rain. High 49°, low 36°.
0.3Great Valley, Monday, 9 November
Light rain. High 52°, low 41°.
0.15Great Valley, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.18
Great Valley, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.13Great Valley, Thursday, 12 November
Climate normal for this date — 60-year average.
0.09Great Valley, Friday, 13 November
Climate normal for this date — 60-year average.
0.14Great Valley, Saturday, 14 November
Climate normal for this date — 60-year average.
0.19Great Valley, Sunday, 15 November
Climate normal for this date — 60-year average.
0.15Great Valley, Monday, 16 November
Climate normal for this date — 60-year average.
0.15Great Valley, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.08Great Valley, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.11Great Valley, Thursday, 19 November
Climate normal for this date — 60-year average.
0.13Great Valley, Friday, 20 November
Climate normal for this date — 60-year average.
0.11Great Valley, Saturday, 21 November
Climate normal for this date — 60-year average.
0.14Great Valley, Sunday, 22 November
Climate normal for this date — 60-year average.
0.07Great Valley, Monday, 23 November
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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