Weather in Lyon Valley, PA
Lyon Valley, Saturday, 14 November, 01:15
Overcast. Feels like 30°. High 46°, low 35°.
Monthly outlook for Lyon Valley, PA: average high 50.1°, average low 34.7°. That is 0.9° above the climate normal for November. Precipitation is expected on 3 days (about 0.4 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 19 November (60.2°), the coolest 25 November (26°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 14 November – 23 November | 52.7° | 48.9° | +2.1° |
| 24 November – 3 December | 45.8° | 46.3° | -0.3° |
| 4 December – 13 December | at normal | 41.9° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Stiles (9 mi).
0
Lyon Valley, Sunday, 15 November
Partly cloudy. High 46°, low 37°.
0Lyon Valley, Monday, 16 November
Overcast. High 48°, low 34°.
0
Lyon Valley, Tuesday, 17 November
Mostly clear. High 52°, low 33°.
0
Lyon Valley, Wednesday, 18 November
Clear. High 58°, low 35°.
0Lyon Valley, Thursday, 19 November
Clear. High 60°, low 36°.
0Lyon Valley, Friday, 20 November
Partly cloudy. High 60°, low 41°.
0Lyon Valley, Saturday, 21 November
Clear. High 59°, low 44°.
0Lyon Valley, Sunday, 22 November
Overcast. High 52°, low 42°.
0.09
Lyon Valley, Monday, 23 November
Light rain. High 46°, low 33°.
0Lyon Valley, Tuesday, 24 November
Clear. High 41°, low 27°.
0Lyon Valley, Wednesday, 25 November
Overcast. High 39°, low 26°.
0
Lyon Valley, Thursday, 26 November
Light snow. High 44°, low 27°.
0Lyon Valley, Friday, 27 November
Clear. High 44°, low 30°.
0.07Lyon Valley, Saturday, 28 November
Light rain. High 51°, low 28°.
0.26Lyon Valley, Sunday, 29 November
Rain. High 55°, low 48°.
0.13
Lyon Valley, Monday, 30 November
Climate normal for this date — 60-year average.
0.16Lyon Valley, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.11Lyon Valley, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.14Lyon Valley, Thursday, 3 December
Climate normal for this date — 60-year average.
0.12Lyon Valley, Friday, 4 December
Climate normal for this date — 60-year average.
0.15Lyon Valley, Saturday, 5 December
Climate normal for this date — 60-year average.
0.15Lyon Valley, Sunday, 6 December
Climate normal for this date — 60-year average.
0.11Lyon Valley, Monday, 7 December
Climate normal for this date — 60-year average.
0.11Lyon Valley, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.2Lyon Valley, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.13Lyon Valley, Thursday, 10 December
Climate normal for this date — 60-year average.
0.19Lyon Valley, Friday, 11 December
Climate normal for this date — 60-year average.
0.12Lyon Valley, Saturday, 12 December
Climate normal for this date — 60-year average.
0.14Lyon Valley, Sunday, 13 December
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 Lyon Valley, 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 Lyon Valley, 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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