Weather in Dumbarton, MD
Dumbarton, Sunday, 11 October, 14:20
Rain. Feels like 63°. High 67°, low 58°.
Monthly outlook for Dumbarton, MD: average high 64.2°, average low 48.8°. That is 0.2° below the climate normal for October. Precipitation is expected on 5 days (about 1.7 inches), against a normal of 4 days and 2.0 inches. The warmest day looks like 14 October (80.3°), the coolest 18 October (33.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 11 October – 20 October | 66.2° | 65.5° | +0.4° |
| 21 October – 30 October | 61° | 62° | -0.6° |
| 31 October – 9 November | at normal | 59.2° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Baltimore (7 mi).
0.15Dumbarton, Monday, 12 October
Rain. High 76°, low 58°.
0
Dumbarton, Tuesday, 13 October
Clear. High 78°, low 56°.
0.04Dumbarton, Wednesday, 14 October
Light rain. High 80°, low 65°.
0Dumbarton, Thursday, 15 October
Clear. High 67°, low 59°.
0.3Dumbarton, Friday, 16 October
Light rain. High 76°, low 55°.
0Dumbarton, Saturday, 17 October
Clear. High 52°, low 37°.
0Dumbarton, Sunday, 18 October
Clear. High 47°, low 33°.
0
Dumbarton, Monday, 19 October
Overcast. High 55°, low 38°.
0Dumbarton, Tuesday, 20 October
Clear. High 63°, low 43°.
0Dumbarton, Wednesday, 21 October
Clear. High 63°, low 47°.
0Dumbarton, Thursday, 22 October
Overcast. High 60°, low 46°.
0Dumbarton, Friday, 23 October
Clear. High 60°, low 46°.
0Dumbarton, Saturday, 24 October
Overcast. High 60°, low 47°.
0Dumbarton, Sunday, 25 October
Clear. High 60°, low 47°.
0.15Dumbarton, Monday, 26 October
Rain. High 63°, low 46°.
0.2
Dumbarton, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.13Dumbarton, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.26Dumbarton, Thursday, 29 October
Climate normal for this date — 60-year average.
0.13Dumbarton, Friday, 30 October
Climate normal for this date — 60-year average.
0.06Dumbarton, Saturday, 31 October
Climate normal for this date — 60-year average.
0.1Dumbarton, Sunday, 1 November
Climate normal for this date — 60-year average.
0.13Dumbarton, Monday, 2 November
Climate normal for this date — 60-year average.
0.08Dumbarton, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.11Dumbarton, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.11Dumbarton, Thursday, 5 November
Climate normal for this date — 60-year average.
0.09Dumbarton, Friday, 6 November
Climate normal for this date — 60-year average.
0.08Dumbarton, Saturday, 7 November
Climate normal for this date — 60-year average.
0.17
Dumbarton, Sunday, 8 November
Climate normal for this date — 60-year average.
0.1Dumbarton, Monday, 9 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 Dumbarton, 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 Dumbarton, 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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