Weather in Sylvan Dell, PA
Sylvan Dell, Thursday, 22 October, 15:03
Clear. Feels like 63°. High 65°, low 38°.
Monthly outlook for Sylvan Dell, PA: average high 56.6°, average low 39.3°. That is 1.3° above the climate normal for October. Precipitation is expected on 1 day (about 0.6 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 26 October (66.3°), the coolest 6 November (31.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 22 October – 31 October | 58.9° | 55° | +2.2° |
| 1 November – 10 November | 52.7° | 51.8° | +0.5° |
| 11 November – 20 November | at normal | 46.2° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Upper Fairfield (7 mi).
0Sylvan Dell, Friday, 23 October
Clear. High 58°, low 38°.
0
Sylvan Dell, Saturday, 24 October
Overcast. High 57°, low 36°.
0Sylvan Dell, Sunday, 25 October
Clear. High 57°, low 34°.
0Sylvan Dell, Monday, 26 October
Clear. High 66°, low 35°.
0
Sylvan Dell, Tuesday, 27 October
Mostly clear. High 60°, low 43°.
0Sylvan Dell, Wednesday, 28 October
Overcast. High 52°, low 41°.
0.01
Sylvan Dell, Thursday, 29 October
Light rain. High 61°, low 46°.
0.01Sylvan Dell, Friday, 30 October
Light rain. High 55°, low 37°.
0Sylvan Dell, Saturday, 31 October
Overcast. High 55°, low 35°.
0.56Sylvan Dell, Sunday, 1 November
Rain. High 54°, low 46°.
0.02Sylvan Dell, Monday, 2 November
Light rain. High 62°, low 51°.
0Sylvan Dell, Tuesday, 3 November
Clear. High 58°, low 42°.
0.02Sylvan Dell, Wednesday, 4 November
Light rain. High 49°, low 40°.
0Sylvan Dell, Thursday, 5 November
Overcast. High 44°, low 36°.
0Sylvan Dell, Friday, 6 November
Overcast. High 49°, low 31°.
0.09
Sylvan 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.
0.11Sylvan Dell, Friday, 20 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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