Weather in Black Hall, CT
Black Hall, Wednesday, 21 October, 03:35
Clear. Feels like 46°. High 61°, low 43°.
Monthly outlook for Black Hall, CT: average high 56.2°, average low 42.1°. That is 0.8° below the climate normal for October. Precipitation is expected on 2 days (about 1.8 inches), against a normal of 4 days and 2.0 inches. The warmest day looks like 22 October (66.5°), the coolest 24 October (35.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 21 October – 30 October | 58.3° | 58.2° | +0.1° |
| 31 October – 9 November | 52.6° | 55.5° | -1.6° |
| 10 November – 19 November | at normal | 51.1° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Old Lyme (2 mi).
0
Black Hall, Thursday, 22 October
Overcast. High 66°, low 38°.
0
Black Hall, Friday, 23 October
Clear. High 53°, low 40°.
0Black Hall, Saturday, 24 October
Clear. High 58°, low 35°.
0Black Hall, Sunday, 25 October
Clear. High 61°, low 35°.
0Black Hall, Monday, 26 October
Clear. High 64°, low 39°.
0Black Hall, Tuesday, 27 October
Overcast. High 62°, low 55°.
0
Black Hall, Wednesday, 28 October
Mostly clear. High 50°, low 43°.
0.03
Black Hall, Thursday, 29 October
Light rain. High 51°, low 40°.
0.12Black Hall, Friday, 30 October
Light rain. High 55°, low 46°.
0Black Hall, Saturday, 31 October
Clear. High 50°, low 39°.
0Black Hall, Sunday, 1 November
Overcast. High 58°, low 47°.
1.68Black Hall, Monday, 2 November
Heavy rain. High 63°, low 58°.
0Black Hall, Tuesday, 3 November
Clear. High 52°, low 41°.
0Black Hall, Wednesday, 4 November
Clear. High 46°, low 37°.
0Black Hall, Thursday, 5 November
Clear. High 46°, low 38°.
0.11
Black Hall, Friday, 6 November
Climate normal for this date — 60-year average.
0.07
Black Hall, Saturday, 7 November
Climate normal for this date — 60-year average.
0.13Black Hall, Sunday, 8 November
Climate normal for this date — 60-year average.
0.09Black Hall, Monday, 9 November
Climate normal for this date — 60-year average.
0.18Black Hall, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.16Black Hall, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.16Black Hall, Thursday, 12 November
Climate normal for this date — 60-year average.
0.21Black Hall, Friday, 13 November
Climate normal for this date — 60-year average.
0.09Black Hall, Saturday, 14 November
Climate normal for this date — 60-year average.
0.13Black Hall, Sunday, 15 November
Climate normal for this date — 60-year average.
0.15Black Hall, Monday, 16 November
Climate normal for this date — 60-year average.
0.15Black Hall, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.08Black Hall, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.06Black Hall, Thursday, 19 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 Black Hall, CT 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 Black Hall, CT 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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