Weather in Rock Harbor, MA
Rock Harbor, Sunday, 1 November, 01:20
Clear. Feels like 45°. High 60°, low 36°.
Monthly outlook for Rock Harbor, MA: average high 56.9°, average low 50.3°. That is 2.4° above the climate normal for November. Precipitation is expected on 9 days (about 3.3 inches), against a normal of 6 days and 2.3 inches. The warmest day looks like 2 November (69.4°), the coolest 1 November (36.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 1 November – 10 November | 60.1° | 53.8° | +3.5° |
| 11 November – 20 November | 51.6° | 50° | +0.9° |
| 21 November – 30 November | at normal | 47.7° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Chatham (9 mi).
0
Rock Harbor, Monday, 2 November
Partly cloudy. High 69°, low 46°.
0
Rock Harbor, Tuesday, 3 November
Overcast. High 61°, low 55°.
0
Rock Harbor, Wednesday, 4 November
Clear. High 63°, low 58°.
0Rock Harbor, Thursday, 5 November
Overcast. High 63°, low 58°.
0.26
Rock Harbor, Friday, 6 November
Rain. High 63°, low 59°.
0.01Rock Harbor, Saturday, 7 November
Light rain. High 59°, low 56°.
0.65Rock Harbor, Sunday, 8 November
Rain. High 59°, low 55°.
0.22Rock Harbor, Monday, 9 November
Light rain. High 54°, low 50°.
0.07Rock Harbor, Tuesday, 10 November
Light rain. High 51°, low 47°.
0.37Rock Harbor, Wednesday, 11 November
Rain. High 48°, low 45°.
0.07Rock Harbor, Thursday, 12 November
Light rain. High 49°, low 47°.
0Rock Harbor, Friday, 13 November
Overcast. High 51°, low 44°.
1.37Rock Harbor, Saturday, 14 November
Heavy rain. High 56°, low 51°.
0.15Rock Harbor, Sunday, 15 November
Light rain. High 56°, low 51°.
0.09Rock Harbor, Monday, 16 November
Light rain. High 50°, low 48°.
0.17Rock Harbor, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.1Rock Harbor, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.07
Rock Harbor, Thursday, 19 November
Climate normal for this date — 60-year average.
0.1Rock Harbor, Friday, 20 November
Climate normal for this date — 60-year average.
0.1
Rock Harbor, Saturday, 21 November
Climate normal for this date — 60-year average.
0.22Rock Harbor, Sunday, 22 November
Climate normal for this date — 60-year average.
0.17Rock Harbor, Monday, 23 November
Climate normal for this date — 60-year average.
0.14Rock Harbor, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.12Rock Harbor, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.17Rock Harbor, Thursday, 26 November
Climate normal for this date — 60-year average.
0.13Rock Harbor, Friday, 27 November
Climate normal for this date — 60-year average.
0.17Rock Harbor, Saturday, 28 November
Climate normal for this date — 60-year average.
0.11Rock Harbor, Sunday, 29 November
Climate normal for this date — 60-year average.
0.13Rock Harbor, 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 Rock Harbor, MA 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 Rock Harbor, MA 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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