Weather in Port Herman, MD
Port Herman, Sunday, 1 November, 23:50
Overcast. Feels like 41°. High 63°, low 40°.
Monthly outlook for Port Herman, MD: average high 62.6°, average low 45.3°. That is 3.4° above the climate normal for November. Precipitation is expected on 1 day (about 1.5 inches), against a normal of 4 days and 1.7 inches. The warmest day looks like 5 November (70.3°), the coolest 13 November (30.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 1 November – 10 November | 64.3° | 58.2° | +3.4° |
| 11 November – 20 November | 59.7° | 53.1° | +3.7° |
| 21 November – 30 November | at normal | 50.4° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Aberdeen Proving Ground (12 mi).
0Port Herman, Monday, 2 November
Overcast. High 64°, low 41°.
0Port Herman, Tuesday, 3 November
Overcast. High 68°, low 43°.
0
Port Herman, Wednesday, 4 November
Partly cloudy. High 70°, low 54°.
0
Port Herman, Thursday, 5 November
Light rain. High 70°, low 59°.
1.47Port Herman, Friday, 6 November
Heavy rain. High 65°, low 60°.
0
Port Herman, Saturday, 7 November
Clear. High 64°, low 49°.
0Port Herman, Sunday, 8 November
Clear. High 58°, low 43°.
0Port Herman, Monday, 9 November
Clear. High 61°, low 43°.
0Port Herman, Tuesday, 10 November
Overcast. High 58°, low 47°.
0Port Herman, Wednesday, 11 November
Overcast. High 60°, low 44°.
0.01Port Herman, Thursday, 12 November
Light rain. High 52°, low 37°.
0Port Herman, Friday, 13 November
Clear. High 48°, low 30°.
0Port Herman, Saturday, 14 November
Clear. High 62°, low 39°.
0Port Herman, Sunday, 15 November
Partly cloudy. High 66°, low 45°.
0
Port Herman, Monday, 16 November
Mostly clear. High 70°, low 50°.
0.07Port Herman, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.06Port Herman, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.1Port Herman, Thursday, 19 November
Climate normal for this date — 60-year average.
0.07Port Herman, Friday, 20 November
Climate normal for this date — 60-year average.
0.09Port Herman, Saturday, 21 November
Climate normal for this date — 60-year average.
0.11Port Herman, Sunday, 22 November
Climate normal for this date — 60-year average.
0.07Port Herman, Monday, 23 November
Climate normal for this date — 60-year average.
0.13Port Herman, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.11
Port Herman, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.15Port Herman, Thursday, 26 November
Climate normal for this date — 60-year average.
0.09Port Herman, Friday, 27 November
Climate normal for this date — 60-year average.
0.17Port Herman, Saturday, 28 November
Climate normal for this date — 60-year average.
0.15Port Herman, Sunday, 29 November
Climate normal for this date — 60-year average.
0.12Port Herman, Monday, 30 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 Port Herman, 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 Port Herman, 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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