Weather in Rock Harbor, MA
Rock Harbor, Saturday, 24 October, 05:47
Clear. Feels like 37°. High 54°, low 35°.
Monthly outlook for Rock Harbor, MA: average high 55.5°, average low 47.1°. That is 0.4° above the climate normal for October. Precipitation is expected on 3 days (about 3.6 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 5 November (62.2°), the coolest 24 October (34.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 24 October – 2 November | 56.6° | 55.4° | +0.7° |
| 3 November – 12 November | 53.5° | 53.1° | +0.2° |
| 13 November – 22 November | at normal | 49.3° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Chatham (9 mi).
0
Rock Harbor, Sunday, 25 October
Clear. High 61°, low 44°.
0Rock Harbor, Monday, 26 October
Clear. High 60°, low 49°.
0
Rock Harbor, Tuesday, 27 October
Partly cloudy. High 58°, low 47°.
0Rock Harbor, Wednesday, 28 October
Clear. High 50°, low 47°.
0Rock Harbor, Thursday, 29 October
Clear. High 57°, low 50°.
0Rock Harbor, Friday, 30 October
Clear. High 59°, low 49°.
0
Rock Harbor, Saturday, 31 October
Mostly clear. High 56°, low 48°.
0Rock Harbor, Sunday, 1 November
Partly cloudy. High 54°, low 48°.
0
Rock Harbor, Monday, 2 November
Overcast. High 58°, low 51°.
0.01
Rock Harbor, Tuesday, 3 November
Light rain. High 55°, low 53°.
0.68Rock Harbor, Wednesday, 4 November
Rain. High 59°, low 53°.
1.96Rock Harbor, Thursday, 5 November
Heavy rain. High 62°, low 58°.
0.94Rock Harbor, Friday, 6 November
Heavy rain. High 59°, low 42°.
0Rock Harbor, Saturday, 7 November
Light rain. High 42°, low 40°.
0Rock Harbor, Sunday, 8 November
Partly cloudy. High 44°, low 40°.
0.11
Rock Harbor, Monday, 9 November
Climate normal for this date — 60-year average.
0.2Rock Harbor, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.13Rock Harbor, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.17Rock Harbor, Thursday, 12 November
Climate normal for this date — 60-year average.
0.22Rock Harbor, Friday, 13 November
Climate normal for this date — 60-year average.
0.11Rock Harbor, Saturday, 14 November
Climate normal for this date — 60-year average.
0.11Rock Harbor, Sunday, 15 November
Climate normal for this date — 60-year average.
0.17Rock Harbor, Monday, 16 November
Climate normal for this date — 60-year average.
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.
0.07Rock 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.
0.1Rock 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.
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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