Weather in Green Valley, MD
Green Valley, Saturday, 31 October, 17:12
Clear. Feels like 57°. High 59°, low 40°.
Monthly outlook for Green Valley, MD: average high 60.3°, average low 47°. That is 1.9° above the climate normal for October. Precipitation is expected on 8 days (about 3.1 inches), against a normal of 4 days and 1.6 inches. The warmest day looks like 4 November (71.5°), the coolest 13 November (39.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 31 October – 9 November | 64.6° | 58.6° | +3.3° |
| 10 November – 19 November | 53° | 53.3° | -0.1° |
| 20 November – 29 November | at normal | 50.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Frederick (11 mi).
0
Green Valley, Sunday, 1 November
Overcast. High 66°, low 41°.
0Green Valley, Monday, 2 November
Overcast. High 65°, low 42°.
0Green Valley, Tuesday, 3 November
Clear. High 70°, low 46°.
0Green Valley, Wednesday, 4 November
Clear. High 72°, low 51°.
0.2
Green Valley, Thursday, 5 November
Light rain. High 68°, low 57°.
0.62Green Valley, Friday, 6 November
Rain. High 64°, low 60°.
0.33Green Valley, Saturday, 7 November
Rain. High 63°, low 57°.
0.13Green Valley, Sunday, 8 November
Rain. High 66°, low 54°.
1Green Valley, Monday, 9 November
Heavy rain. High 54°, low 49°.
0Green Valley, Tuesday, 10 November
Light rain. High 53°, low 45°.
0Green Valley, Wednesday, 11 November
Overcast. High 58°, low 42°.
0Green Valley, Thursday, 12 November
Clear. High 54°, low 40°.
0.19Green Valley, Friday, 13 November
Light rain. High 45°, low 39°.
0.59Green Valley, Saturday, 14 November
Rain. High 53°, low 45°.
0.08Green Valley, Sunday, 15 November
Light rain. High 55°, low 44°.
0.12
Green Valley, Monday, 16 November
Climate normal for this date — 60-year average.
0.08
Green 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.
0.11Green Valley, Friday, 27 November
Climate normal for this date — 60-year average.
0.21Green Valley, Saturday, 28 November
Climate normal for this date — 60-year average.
0.14Green Valley, Sunday, 29 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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