Weather in Thornhill, VA
Thornhill, Friday, 13 November, 05:28
Overcast. Feels like 44°. High 55°, low 39°.
Monthly outlook for Thornhill, VA: average high 56.5°, average low 36.3°. That is 1.2° above the climate normal for November. Precipitation is expected on 2 days (about 3.1 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 24 November (68.6°), the coolest 27 November (19.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 13 November – 22 November | 58.2° | 54.8° | +1.9° |
| 23 November – 2 December | 53.7° | 52.5° | +0.6° |
| 3 December – 12 December | at normal | 48.4° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Orange (10 mi).
0Thornhill, Saturday, 14 November
Overcast. High 51°, low 33°.
0Thornhill, Sunday, 15 November
Overcast. High 52°, low 39°.
0
Thornhill, Monday, 16 November
Clear. High 51°, low 35°.
0Thornhill, Tuesday, 17 November
Clear. High 56°, low 33°.
0Thornhill, Wednesday, 18 November
Clear. High 60°, low 35°.
0Thornhill, Thursday, 19 November
Clear. High 64°, low 39°.
0Thornhill, Friday, 20 November
Overcast. High 65°, low 43°.
0Thornhill, Saturday, 21 November
Overcast. High 63°, low 44°.
0Thornhill, Sunday, 22 November
Clear. High 66°, low 43°.
0
Thornhill, Monday, 23 November
Partly cloudy. High 65°, low 44°.
0.03
Thornhill, Tuesday, 24 November
Light rain. High 69°, low 50°.
2.94Thornhill, Wednesday, 25 November
Heavy rain. High 68°, low 33°.
0.14
Thornhill, Thursday, 26 November
Snow. High 37°, low 27°.
0Thornhill, Friday, 27 November
Clear. High 41°, low 20°.
0Thornhill, Saturday, 28 November
Clear. High 43°, low 23°.
0.11Thornhill, Sunday, 29 November
Climate normal for this date — 60-year average.
0.11Thornhill, Monday, 30 November
Climate normal for this date — 60-year average.
0.15
Thornhill, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.08
Thornhill, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.08Thornhill, Thursday, 3 December
Climate normal for this date — 60-year average.
0.08Thornhill, Friday, 4 December
Climate normal for this date — 60-year average.
0.16Thornhill, Saturday, 5 December
Climate normal for this date — 60-year average.
0.11Thornhill, Sunday, 6 December
Climate normal for this date — 60-year average.
0.15Thornhill, Monday, 7 December
Climate normal for this date — 60-year average.
0.06Thornhill, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.17Thornhill, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.18Thornhill, Thursday, 10 December
Climate normal for this date — 60-year average.
0.15Thornhill, Friday, 11 December
Climate normal for this date — 60-year average.
0.08Thornhill, Saturday, 12 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 Thornhill, VA 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 Thornhill, VA 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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