Weather in Sylvan Dell, PA
Sylvan Dell, Wednesday, 21 October, 05:54
Clear. Feels like 38°. High 66°, low 37°.
Monthly outlook for Sylvan Dell, PA: average high 58.3°, average low 41.5°. That is 2° above the climate normal for October. Precipitation is expected on 3 days (about 0.5 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 22 October (65.6°), the coolest 31 October (30.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 21 October – 30 October | 59.8° | 55.4° | +2.4° |
| 31 October – 9 November | 55.9° | 52.2° | +2.1° |
| 10 November – 19 November | at normal | 46.7° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Upper Fairfield (7 mi).
0
Sylvan Dell, Thursday, 22 October
Clear. High 66°, low 33°.
0Sylvan Dell, Friday, 23 October
Clear. High 57°, low 39°.
0Sylvan Dell, Saturday, 24 October
Clear. High 56°, low 34°.
0
Sylvan Dell, Sunday, 25 October
Mostly clear. High 58°, low 35°.
0Sylvan Dell, Monday, 26 October
Clear. High 64°, low 36°.
0
Sylvan Dell, Tuesday, 27 October
Overcast. High 63°, low 47°.
0
Sylvan Dell, Wednesday, 28 October
Light rain. High 60°, low 49°.
0.08Sylvan Dell, Thursday, 29 October
Light rain. High 59°, low 50°.
0
Sylvan Dell, Friday, 30 October
Partly cloudy. High 49°, low 36°.
0Sylvan Dell, Saturday, 31 October
Clear. High 49°, low 31°.
0Sylvan Dell, Sunday, 1 November
Overcast. High 48°, low 32°.
0.32Sylvan Dell, Monday, 2 November
Rain. High 53°, low 45°.
0.08Sylvan Dell, Tuesday, 3 November
Light rain. High 60°, low 50°.
0.02Sylvan Dell, Wednesday, 4 November
Light rain. High 63°, low 56°.
0Sylvan Dell, Thursday, 5 November
Overcast. High 62°, low 57°.
0.09Sylvan Dell, Friday, 6 November
Climate normal for this date — 60-year average.
0.09Sylvan Dell, Saturday, 7 November
Climate normal for this date — 60-year average.
0.16Sylvan Dell, Sunday, 8 November
Climate normal for this date — 60-year average.
0.11
Sylvan Dell, Monday, 9 November
Climate normal for this date — 60-year average.
0.17Sylvan Dell, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.14Sylvan Dell, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.19Sylvan Dell, Thursday, 12 November
Climate normal for this date — 60-year average.
0.08Sylvan Dell, Friday, 13 November
Climate normal for this date — 60-year average.
0.09Sylvan Dell, Saturday, 14 November
Climate normal for this date — 60-year average.
0.15Sylvan Dell, Sunday, 15 November
Climate normal for this date — 60-year average.
0.15Sylvan Dell, Monday, 16 November
Climate normal for this date — 60-year average.
0.12Sylvan Dell, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.09Sylvan Dell, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.11Sylvan Dell, Thursday, 19 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 Sylvan Dell, 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 Sylvan Dell, 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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