Weather in Sylvan Dell, PA
Sylvan Dell, Friday, 30 October, 04:54
Fog. Feels like 45°. High 57°, low 42°.
Monthly outlook for Sylvan Dell, PA: average high 57.2°, average low 40°. That is 3.6° above the climate normal for October. Precipitation is expected on 4 days (about 1.8 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 14 November (66.9°), the coolest 8 November (31.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 30 October – 8 November | 58.7° | 52.6° | +3.4° |
| 9 November – 18 November | 54.7° | 47° | +4.3° |
| 19 November – 28 November | at normal | 44° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Upper Fairfield (7 mi).
0
Sylvan Dell, Saturday, 31 October
Mostly clear. High 57°, low 38°.
0
Sylvan Dell, Sunday, 1 November
Overcast. High 59°, low 35°.
0Sylvan Dell, Monday, 2 November
Overcast. High 62°, low 40°.
0
Sylvan Dell, Tuesday, 3 November
Partly cloudy. High 64°, low 42°.
0
Sylvan Dell, Wednesday, 4 November
Clear. High 65°, low 43°.
0.9
Sylvan Dell, Thursday, 5 November
Heavy rain. High 64°, low 56°.
0.81Sylvan Dell, Friday, 6 November
Rain. High 63°, low 44°.
0Sylvan Dell, Saturday, 7 November
Clear. High 49°, low 34°.
0.05Sylvan Dell, Sunday, 8 November
Light rain. High 47°, low 32°.
0.02Sylvan Dell, Monday, 9 November
Light rain. High 48°, low 34°.
0Sylvan Dell, Tuesday, 10 November
Overcast. High 47°, low 35°.
0Sylvan Dell, Wednesday, 11 November
Overcast. High 54°, low 32°.
0.04Sylvan Dell, Thursday, 12 November
Light rain. High 48°, low 39°.
0Sylvan Dell, Friday, 13 November
Overcast. High 65°, low 46°.
0Sylvan Dell, Saturday, 14 November
Overcast. High 67°, low 48°.
0.15
Sylvan 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.
0.11Sylvan Dell, Saturday, 21 November
Climate normal for this date — 60-year average.
0.11Sylvan Dell, Sunday, 22 November
Climate normal for this date — 60-year average.
0.08Sylvan Dell, Monday, 23 November
Climate normal for this date — 60-year average.
0.12Sylvan Dell, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.13Sylvan Dell, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.24Sylvan Dell, Thursday, 26 November
Climate normal for this date — 60-year average.
0.1Sylvan Dell, Friday, 27 November
Climate normal for this date — 60-year average.
0.26Sylvan Dell, Saturday, 28 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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