Weather in Lyon Valley, PA
Lyon Valley, Saturday, 14 November, 21:07
Overcast. Feels like 38°. High 44°, low 37°.
Monthly outlook for Lyon Valley, PA: average high 50.1°, average low 34.3°. That is 0.9° above the climate normal for November. Precipitation is expected on 1 day (about 1.2 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 28 November (65.4°), the coolest 24 November (22°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 14 November – 23 November | 53.1° | 48.9° | +2.3° |
| 24 November – 3 December | 45.2° | 46.3° | -0.6° |
| 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).
0Lyon Valley, Sunday, 15 November
Overcast. High 45°, low 40°.
0Lyon Valley, Monday, 16 November
Overcast. High 50°, low 37°.
0
Lyon Valley, Tuesday, 17 November
Clear. High 55°, low 33°.
0
Lyon Valley, Wednesday, 18 November
Mostly clear. High 58°, low 36°.
0Lyon Valley, Thursday, 19 November
Overcast. High 61°, low 36°.
0Lyon Valley, Friday, 20 November
Clear. High 61°, low 40°.
0Lyon Valley, Saturday, 21 November
Clear. High 57°, low 41°.
0Lyon Valley, Sunday, 22 November
Clear. High 54°, low 39°.
0Lyon Valley, Monday, 23 November
Overcast. High 46°, low 28°.
0Lyon Valley, Tuesday, 24 November
Overcast. High 32°, low 22°.
0Lyon Valley, Wednesday, 25 November
Clear. High 41°, low 23°.
0Lyon Valley, Thursday, 26 November
Overcast. High 40°, low 24°.
0Lyon Valley, Friday, 27 November
Overcast. High 47°, low 27°.
1.2
Lyon Valley, Saturday, 28 November
Heavy rain. High 65°, low 48°.
0Lyon Valley, Sunday, 29 November
Mostly clear. High 47°, low 40°.
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.
0.14
Lyon 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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