Weather in Lyon Valley, PA
Lyon Valley, Thursday, 5 November, 02:22
Overcast. Feels like 59°. High 73°, low 58°.
Monthly outlook for Lyon Valley, PA: average high 56.7°, average low 42.3°. That is 2.9° above the climate normal for November. Precipitation is expected on 2 days (about 0.4 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 6 November (74.7°), the coolest 19 November (33.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 5 November – 14 November | 57.1° | 52.6° | +2.5° |
| 15 November – 24 November | 56.1° | 48.7° | +4.1° |
| 25 November – 4 December | at normal | 45.9° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Stiles (9 mi).
0
Lyon Valley, Friday, 6 November
Clear. High 75°, low 50°.
0.02
Lyon Valley, Saturday, 7 November
Light rain. High 57°, low 45°.
0Lyon Valley, Sunday, 8 November
Overcast. High 57°, low 47°.
0Lyon Valley, Monday, 9 November
Overcast. High 53°, low 43°.
0
Lyon Valley, Tuesday, 10 November
Mostly clear. High 59°, low 38°.
0Lyon Valley, Wednesday, 11 November
Clear. High 57°, low 40°.
0Lyon Valley, Thursday, 12 November
Mostly clear. High 43°, low 33°.
0Lyon Valley, Friday, 13 November
Overcast. High 45°, low 34°.
0Lyon Valley, Saturday, 14 November
Overcast. High 52°, low 35°.
0Lyon Valley, Sunday, 15 November
Clear. High 60°, low 48°.
0.01Lyon Valley, Monday, 16 November
Light rain. High 61°, low 49°.
0.06Lyon Valley, Tuesday, 17 November
Light rain. High 59°, low 47°.
0Lyon Valley, Wednesday, 18 November
Mostly clear. High 52°, low 37°.
0
Lyon Valley, Thursday, 19 November
Partly cloudy. High 52°, low 33°.
0.01Lyon Valley, Friday, 20 November
Light rain. High 53°, low 40°.
0.12Lyon Valley, Saturday, 21 November
Climate normal for this date — 60-year average.
0.13Lyon Valley, Sunday, 22 November
Climate normal for this date — 60-year average.
0.09Lyon Valley, Monday, 23 November
Climate normal for this date — 60-year average.
0.12
Lyon Valley, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.15Lyon Valley, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.2Lyon Valley, Thursday, 26 November
Climate normal for this date — 60-year average.
0.11Lyon Valley, Friday, 27 November
Climate normal for this date — 60-year average.
0.22Lyon Valley, Saturday, 28 November
Climate normal for this date — 60-year average.
0.14Lyon Valley, Sunday, 29 November
Climate normal for this date — 60-year average.
0.13Lyon 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.
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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