Weather in Rock Harbor, MA
Rock Harbor, Wednesday, 4 November, 03:46
Clear. Feels like 57°. High 72°, low 56°.
Monthly outlook for Rock Harbor, MA: average high 54.2°, average low 47°. That is 1.5° above the climate normal for November. Precipitation is expected on 6 days (about 2.9 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 5 November (73.1°), the coolest 16 November (37.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 4 November – 13 November | 58.3° | 52.6° | +3.1° |
| 14 November – 23 November | 47.5° | 49° | -0.8° |
| 24 November – 3 December | at normal | 47.5° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Chatham (9 mi).
0
Rock Harbor, Thursday, 5 November
Overcast. High 73°, low 59°.
1.26
Rock Harbor, Friday, 6 November
Heavy rain. High 63°, low 59°.
0.9Rock Harbor, Saturday, 7 November
Heavy rain. High 60°, low 56°.
0.15Rock Harbor, Sunday, 8 November
Light rain. High 55°, low 50°.
0Rock Harbor, Monday, 9 November
Light rain. High 52°, low 49°.
0
Rock Harbor, Tuesday, 10 November
Partly cloudy. High 58°, low 48°.
0Rock Harbor, Wednesday, 11 November
Overcast. High 53°, low 48°.
0Rock Harbor, Thursday, 12 November
Partly cloudy. High 44°, low 42°.
0.01Rock Harbor, Friday, 13 November
Light rain. High 52°, low 41°.
0.04Rock Harbor, Saturday, 14 November
Light rain. High 45°, low 41°.
0Rock Harbor, Sunday, 15 November
Partly cloudy. High 45°, low 41°.
0.08Rock Harbor, Monday, 16 November
Light rain. High 49°, low 37°.
0.34Rock Harbor, Tuesday, 17 November
Rain. High 45°, low 40°.
0.08Rock Harbor, Wednesday, 18 November
Light rain. High 45°, low 42°.
0Rock Harbor, Thursday, 19 November
Overcast. High 56°, low 43°.
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.
0.13Rock Harbor, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.16Rock Harbor, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.18Rock Harbor, Thursday, 3 December
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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