Weather in Dumbarton, NY
Dumbarton, Monday, 12 October, 05:18
Overcast. Feels like 51°. High 61°, low 51°.
Monthly outlook for Dumbarton, NY: average high 56.8°, average low 41.9°. That is 0° below the climate normal for October. Precipitation is expected on 7 days (about 3.0 inches), against a normal of 8 days and 2.8 inches. The warmest day looks like 13 October (70.6°), the coolest 18 October (28.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 12 October – 21 October | 58.6° | 58° | +0.3° |
| 22 October – 31 October | 53.8° | 54.1° | -0.1° |
| 1 November – 10 November | at normal | 50.9° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Sylvan Beach (4 mi).
0.81
Dumbarton, Tuesday, 13 October
Heavy rain. High 71°, low 53°.
0.18Dumbarton, Wednesday, 14 October
Rain. High 64°, low 57°.
0
Dumbarton, Thursday, 15 October
Partly cloudy. High 56°, low 48°.
0.78Dumbarton, Friday, 16 October
Rain. High 53°, low 45°.
0.11Dumbarton, Saturday, 17 October
Light rain. High 46°, low 39°.
0Dumbarton, Sunday, 18 October
Overcast. High 51°, low 28°.
0
Dumbarton, Monday, 19 October
Clear. High 61°, low 36°.
0Dumbarton, Tuesday, 20 October
Overcast. High 63°, low 46°.
0Dumbarton, Wednesday, 21 October
Clear. High 58°, low 40°.
0Dumbarton, Thursday, 22 October
Clear. High 62°, low 37°.
0.5Dumbarton, Friday, 23 October
Rain. High 66°, low 46°.
0.04Dumbarton, Saturday, 24 October
Light rain. High 46°, low 34°.
0Dumbarton, Sunday, 25 October
Partly cloudy. High 52°, low 31°.
0.58Dumbarton, Monday, 26 October
Rain. High 45°, low 41°.
0Dumbarton, Tuesday, 27 October
Partly cloudy. High 52°, low 38°.
0.18
Dumbarton, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.12Dumbarton, Thursday, 29 October
Climate normal for this date — 60-year average.
0.11Dumbarton, Friday, 30 October
Climate normal for this date — 60-year average.
0.14Dumbarton, Saturday, 31 October
Climate normal for this date — 60-year average.
0.17Dumbarton, Sunday, 1 November
Climate normal for this date — 60-year average.
0.23Dumbarton, Monday, 2 November
Climate normal for this date — 60-year average.
0.13Dumbarton, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.15Dumbarton, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.16Dumbarton, Thursday, 5 November
Climate normal for this date — 60-year average.
0.19Dumbarton, Friday, 6 November
Climate normal for this date — 60-year average.
0.12Dumbarton, Saturday, 7 November
Climate normal for this date — 60-year average.
0.15Dumbarton, Sunday, 8 November
Climate normal for this date — 60-year average.
0.13Dumbarton, Monday, 9 November
Climate normal for this date — 60-year average.
0.18Dumbarton, Tuesday, 10 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, NY 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, NY 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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