Weather in Winterstown, PA
Winterstown, Saturday, 10 October, 10:30
Overcast. Feels like 58°. High 65°, low 45°.
Monthly outlook for Winterstown, PA: average high 60.9°, average low 43.8°. That is 1.4° below the climate normal for October. Precipitation is expected on 4 days (about 2.8 inches), against a normal of 4 days and 1.7 inches. The warmest day looks like 13 October (75.5°), the coolest 19 October (28.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 10 October – 19 October | 62.6° | 64.4° | -1° |
| 20 October – 29 October | 57.9° | 60.9° | -1.6° |
| 30 October – 8 November | at normal | 57.9° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — West York (11 mi).
1.63
Winterstown, Sunday, 11 October
Heavy rain. High 62°, low 51°.
0.53Winterstown, Monday, 12 October
Heavy rain. High 70°, low 52°.
0
Winterstown, Tuesday, 13 October
Clear. High 76°, low 55°.
0
Winterstown, Wednesday, 14 October
Mostly clear. High 73°, low 61°.
0Winterstown, Thursday, 15 October
Clear. High 59°, low 49°.
0.59Winterstown, Friday, 16 October
Rain. High 70°, low 47°.
0Winterstown, Saturday, 17 October
Overcast. High 56°, low 39°.
0Winterstown, Sunday, 18 October
Clear. High 46°, low 32°.
0Winterstown, Monday, 19 October
Mostly clear. High 49°, low 29°.
0Winterstown, Tuesday, 20 October
Clear. High 55°, low 34°.
0Winterstown, Wednesday, 21 October
Overcast. High 57°, low 37°.
0.02Winterstown, Thursday, 22 October
Light rain. High 61°, low 47°.
0Winterstown, Friday, 23 October
Clear. High 63°, low 45°.
0Winterstown, Saturday, 24 October
Clear. High 56°, low 41°.
0Winterstown, Sunday, 25 October
Mostly clear. High 56°, low 37°.
0.11
Winterstown, Monday, 26 October
Climate normal for this date — 60-year average.
0.17
Winterstown, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.12Winterstown, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.21Winterstown, Thursday, 29 October
Climate normal for this date — 60-year average.
0.11Winterstown, Friday, 30 October
Climate normal for this date — 60-year average.
0.06Winterstown, Saturday, 31 October
Climate normal for this date — 60-year average.
0.06Winterstown, Sunday, 1 November
Climate normal for this date — 60-year average.
0.13Winterstown, Monday, 2 November
Climate normal for this date — 60-year average.
0.07Winterstown, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.08Winterstown, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.1Winterstown, Thursday, 5 November
Climate normal for this date — 60-year average.
0.06Winterstown, Friday, 6 November
Climate normal for this date — 60-year average.
0.07Winterstown, Saturday, 7 November
Climate normal for this date — 60-year average.
0.17Winterstown, Sunday, 8 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 Winterstown, PA 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 Winterstown, PA 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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