Weather in Perryman, MD
Perryman, Thursday, 8 October, 16:47
Clear. Feels like 76°. High 77°, low 55°.
Monthly outlook for Perryman, MD: average high 67.1°, average low 49.8°. That is 1.2° above the climate normal for October. Precipitation is expected on 2 days (about 1.7 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 16 October (80.4°), the coolest 19 October (33.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 October – 17 October | 70.9° | 66.1° | +2.7° |
| 18 October – 27 October | 60.6° | 62.3° | -0.9° |
| 28 October – 6 November | at normal | 59.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Aberdeen Proving Ground (4 mi).
0
Perryman, Friday, 9 October
Overcast. High 76°, low 49°.
0Perryman, Saturday, 10 October
Overcast. High 71°, low 50°.
0.54
Perryman, Sunday, 11 October
Rain. High 63°, low 59°.
1.11Perryman, Monday, 12 October
Heavy rain. High 72°, low 60°.
0.02Perryman, Tuesday, 13 October
Light rain. High 77°, low 58°.
0
Perryman, Wednesday, 14 October
Partly cloudy. High 63°, low 51°.
0Perryman, Thursday, 15 October
Partly cloudy. High 62°, low 48°.
0.03Perryman, Friday, 16 October
Light rain. High 80°, low 59°.
0Perryman, Saturday, 17 October
Clear. High 68°, low 50°.
0Perryman, Sunday, 18 October
Clear. High 52°, low 39°.
0Perryman, Monday, 19 October
Clear. High 55°, low 34°.
0Perryman, Tuesday, 20 October
Clear. High 62°, low 40°.
0Perryman, Wednesday, 21 October
Clear. High 62°, low 45°.
0Perryman, Thursday, 22 October
Clear. High 64°, low 48°.
0Perryman, Friday, 23 October
Clear. High 70°, low 53°.
0.11Perryman, Saturday, 24 October
Climate normal for this date — 60-year average.
0.15Perryman, Sunday, 25 October
Climate normal for this date — 60-year average.
0.12Perryman, Monday, 26 October
Climate normal for this date — 60-year average.
0.2Perryman, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.13Perryman, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.25Perryman, Thursday, 29 October
Climate normal for this date — 60-year average.
0.1Perryman, Friday, 30 October
Climate normal for this date — 60-year average.
0.06Perryman, Saturday, 31 October
Climate normal for this date — 60-year average.
0.09Perryman, Sunday, 1 November
Climate normal for this date — 60-year average.
0.1Perryman, Monday, 2 November
Climate normal for this date — 60-year average.
0.08Perryman, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.08
Perryman, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.11Perryman, Thursday, 5 November
Climate normal for this date — 60-year average.
0.07Perryman, Friday, 6 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 Perryman, 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 Perryman, 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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