Weather in Green Valley, MD
Green Valley, Wednesday, 28 October, 22:00
Clear. Feels like 49°. High 65°, low 45°.
Monthly outlook for Green Valley, MD: average high 61.3°, average low 47.1°. That is 1.7° above the climate normal for October. Precipitation is expected on 3 days (about 2.4 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 30 October (71.3°), the coolest 10 November (39.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 28 October – 6 November | 67° | 59.7° | +4.1° |
| 7 November – 16 November | 51.6° | 54.6° | -1.7° |
| 17 November – 26 November | at normal | 51.1° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Frederick (11 mi).
0
Green Valley, Thursday, 29 October
Clear. High 71°, low 46°.
0Green Valley, Friday, 30 October
Clear. High 71°, low 51°.
0
Green Valley, Saturday, 31 October
Overcast. High 60°, low 44°.
0
Green Valley, Sunday, 1 November
Partly cloudy. High 65°, low 47°.
0Green Valley, Monday, 2 November
Clear. High 69°, low 46°.
0Green Valley, Tuesday, 3 November
Overcast. High 70°, low 50°.
0.01
Green Valley, Wednesday, 4 November
Light rain. High 66°, low 54°.
0.72Green Valley, Thursday, 5 November
Heavy rain. High 68°, low 60°.
1.5Green Valley, Friday, 6 November
Heavy rain. High 66°, low 57°.
0Green Valley, Saturday, 7 November
Overcast. High 54°, low 46°.
0Green Valley, Sunday, 8 November
Overcast. High 46°, low 43°.
0Green Valley, Monday, 9 November
Overcast. High 49°, low 42°.
0Green Valley, Tuesday, 10 November
Overcast. High 55°, low 40°.
0
Green Valley, Wednesday, 11 November
Mostly clear. High 53°, low 41°.
0.12Green Valley, Thursday, 12 November
Light rain. High 52°, low 41°.
0.08
Green Valley, Friday, 13 November
Climate normal for this date — 60-year average.
0.07Green Valley, Saturday, 14 November
Climate normal for this date — 60-year average.
0.1Green Valley, Sunday, 15 November
Climate normal for this date — 60-year average.
0.12Green Valley, Monday, 16 November
Climate normal for this date — 60-year average.
0.08Green Valley, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.06Green Valley, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.09Green Valley, Thursday, 19 November
Climate normal for this date — 60-year average.
0.07Green Valley, Friday, 20 November
Climate normal for this date — 60-year average.
0.11Green Valley, Saturday, 21 November
Climate normal for this date — 60-year average.
0.11Green Valley, Sunday, 22 November
Climate normal for this date — 60-year average.
0.06Green Valley, Monday, 23 November
Climate normal for this date — 60-year average.
0.14Green Valley, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.09Green Valley, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.15Green Valley, Thursday, 26 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 Green Valley, MD 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 Green Valley, MD 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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