Weather in Mount Parnassus, CT
Mount Parnassus, Monday, 19 October, 09:40
Clear. Feels like 47°. High 61°, low 35°.
Monthly outlook for Mount Parnassus, CT: average high 58.1°, average low 41.1°. That is 0° above the climate normal for October. Precipitation is expected on 4 days (about 2.5 inches), against a normal of 4 days and 2.1 inches. The warmest day looks like 28 October (64.9°), the coolest 30 October (31.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 19 October – 28 October | 59.6° | 58.9° | +0.4° |
| 29 October – 7 November | 55.5° | 56° | -0.3° |
| 8 November – 17 November | at normal | 51.8° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Old Lyme (12 mi).
0Mount Parnassus, Tuesday, 20 October
Clear. High 65°, low 37°.
0
Mount Parnassus, Wednesday, 21 October
Partly cloudy. High 55°, low 38°.
0Mount Parnassus, Thursday, 22 October
Clear. High 59°, low 37°.
0
Mount Parnassus, Friday, 23 October
Mostly clear. High 51°, low 39°.
0Mount Parnassus, Saturday, 24 October
Clear. High 54°, low 36°.
0Mount Parnassus, Sunday, 25 October
Clear. High 59°, low 38°.
0
Mount Parnassus, Monday, 26 October
Overcast. High 62°, low 44°.
0Mount Parnassus, Tuesday, 27 October
Overcast. High 64°, low 50°.
0.16
Mount Parnassus, Wednesday, 28 October
Light rain. High 65°, low 44°.
0Mount Parnassus, Thursday, 29 October
Clear. High 44°, low 33°.
0Mount Parnassus, Friday, 30 October
Clear. High 52°, low 31°.
0Mount Parnassus, Saturday, 31 October
Overcast. High 59°, low 42°.
0.39Mount Parnassus, Sunday, 1 November
Rain. High 59°, low 48°.
0.19Mount Parnassus, Monday, 2 November
Light rain. High 63°, low 54°.
1.71Mount Parnassus, Tuesday, 3 November
Heavy rain. High 55°, low 50°.
0.04Mount Parnassus, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.15
Mount Parnassus, Thursday, 5 November
Climate normal for this date — 60-year average.
0.11Mount Parnassus, Friday, 6 November
Climate normal for this date — 60-year average.
0.07Mount Parnassus, Saturday, 7 November
Climate normal for this date — 60-year average.
0.13Mount Parnassus, Sunday, 8 November
Climate normal for this date — 60-year average.
0.09Mount Parnassus, Monday, 9 November
Climate normal for this date — 60-year average.
0.18Mount Parnassus, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.16Mount Parnassus, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.16Mount Parnassus, Thursday, 12 November
Climate normal for this date — 60-year average.
0.21Mount Parnassus, Friday, 13 November
Climate normal for this date — 60-year average.
0.09Mount Parnassus, Saturday, 14 November
Climate normal for this date — 60-year average.
0.13Mount Parnassus, Sunday, 15 November
Climate normal for this date — 60-year average.
0.15Mount Parnassus, Monday, 16 November
Climate normal for this date — 60-year average.
0.15Mount Parnassus, Tuesday, 17 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 Mount Parnassus, 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 Mount Parnassus, 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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