Monthly outlook for Mount Parnassus, CT: average high 55.2°, average low 42.1°. That is 0.8° above the climate normal for November. Precipitation is expected on 4 days (about 2.1 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 2 November (66.8°), the coolest 15 November (31.2°).
55.2°/42.1°
Average high / low
+0.8°
Above normal
4 / 5
Wet days / normal
2.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
1 November – 10 November
61.6°
55.3°
+3.5°
11 November – 20 November
44.6°
50.6°
-3.4°
21 November – 30 November
at normal
48.2°
—
November records over 66 years
74.3°1 November 2024All-time high
14.5°23 November 2018All-time low
Climate normals and records are computed from the nearest reference point — Old Lyme (12 mi).
Mon, 0267° / 39°0
67 °
Mount Parnassus, Monday, 2 November
Overcast. High 67°, low 39°.
Pressure30.36 inHg
Wind7.9 mph SW
Humidity42%
Visibility6.2 mi
Dew point40°
Tue, 0364° / 45°0
64 °
Mount Parnassus, Tuesday, 3 November
Overcast. High 64°, low 45°.
Pressure30.27 inHg
Wind6.8 mph SW
Humidity45%
Visibility6.2 mi
Dew point42°
Wed, 0467° / 50°0
67 °
Mount Parnassus, Wednesday, 4 November
Clear. High 67°, low 50°.
Pressure30.15 inHg
Wind8.5 mph SW
Humidity62%
Visibility6.2 mi
Dew point53°
Thu, 0565° / 53°0.31
65 °
Mount Parnassus, Thursday, 5 November
Light rain. High 65°, low 53°.
Pressure29.97 inHg
Wind10.8 mph S
Humidity99%
Visibility—
Dew point62°
Fri, 0663° / 58°0.67
63 °
Mount Parnassus, Friday, 6 November
Rain. High 63°, low 58°.
Pressure29.77 inHg
Wind9.6 mph S
Humidity98%
Visibility—
Dew point62°
Sat, 0757° / 53°0
57 °
Mount Parnassus, Saturday, 7 November
Light rain. High 57°, low 53°.
Pressure29.50 inHg
Wind9.4 mph NE
Humidity91%
Visibility—
Dew point52°
Sun, 0861° / 48°0
61 °
Mount Parnassus, Sunday, 8 November
Clear. High 61°, low 48°.
Pressure29.56 inHg
Wind12.4 mph SW
Humidity63%
Visibility—
Dew point44°
Mon, 0958° / 44°0
58 °
Mount Parnassus, Monday, 9 November
Partly cloudy. High 58°, low 44°.
Pressure29.62 inHg
Wind10.2 mph W
Humidity56%
Visibility—
Dew point39°
Tue, 1056° / 43°0
56 °
Mount Parnassus, Tuesday, 10 November
Overcast. High 56°, low 43°.
Pressure29.74 inHg
Wind13.8 mph W
Humidity55%
Visibility—
Dew point35°
Wed, 1152° / 39°0
52 °
Mount Parnassus, Wednesday, 11 November
Mostly clear. High 52°, low 39°.
Pressure29.94 inHg
Wind14.9 mph NW
Humidity52%
Visibility—
Dew point32°
Thu, 1248° / 32°0.03
48 °
Mount Parnassus, Thursday, 12 November
Light rain. High 48°, low 32°.
Pressure30.15 inHg
Wind5.2 mph W
Humidity48%
Visibility—
Dew point23°
Fri, 1345° / 38°1
45 °
Mount Parnassus, Friday, 13 November
Rain. High 45°, low 38°.
Pressure29.91 inHg
Wind14.5 mph N
Humidity94%
Visibility—
Dew point38°
Sat, 1437° / 33°0.06
37 °
Mount Parnassus, Saturday, 14 November
Light rain. High 37°, low 33°.
Pressure29.97 inHg
Wind13.9 mph N
Humidity86%
Visibility—
Dew point31°
Sun, 1538° / 31°0
38 °
Mount Parnassus, Sunday, 15 November
Overcast. High 38°, low 31°.
Pressure29.94 inHg
Wind11.7 mph N
Humidity84%
Visibility—
Dew point30°
Mon, 1649° / 34°0
49 °
Mount Parnassus, Monday, 16 November
Clear. High 49°, low 34°.
Pressure29.77 inHg
Wind11.8 mph NW
Humidity44%
Visibility—
Dew point22°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 1750° / 40°0.15
50 °
Mount Parnassus, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high50°
Average low40°
Average precipitation0.15 in
Chance of precipitation28%
Record high65° (2024)
Record low26° (2019)
Wed, 1850° / 40°0.08
50 °
Mount Parnassus, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high50°
Average low40°
Average precipitation0.08 in
Chance of precipitation23%
Record high63° (2024)
Record low27° (2020)
Thu, 1950° / 39°0.06
50 °
Mount Parnassus, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high50°
Average low39°
Average precipitation0.06 in
Chance of precipitation23%
Record high62° (2021)
Record low24° (1986)
Fri, 2049° / 39°0.13
49 °
Mount Parnassus, Friday, 20 November
Climate normal for this date — 60-year average.
Average high49°
Average low39°
Average precipitation0.13 in
Chance of precipitation32%
Record high64° (1985)
Record low20° (1986)
Sat, 2149° / 38°0.11
49 °
Mount Parnassus, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high49°
Average low38°
Average precipitation0.11 in
Chance of precipitation30%
Record high60° (2020)
Record low20° (1987)
Sun, 2248° / 38°0.15
48 °
Mount Parnassus, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high48°
Average low38°
Average precipitation0.15 in
Chance of precipitation37%
Record high60° (1994)
Record low15° (2018)
Mon, 2347° / 37°0.13
47 °
Mount Parnassus, Monday, 23 November
Climate normal for this date — 60-year average.
Average high47°
Average low37°
Average precipitation0.13 in
Chance of precipitation25%
Record high60° (1992)
Record low15° (2018)
Tue, 2448° / 38°0.1
48 °
Mount Parnassus, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high48°
Average low38°
Average precipitation0.1 in
Chance of precipitation30%
Record high62° (1979)
Record low19° (1989)
Wed, 2548° / 37°0.15
48 °
Mount Parnassus, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high48°
Average low37°
Average precipitation0.15 in
Chance of precipitation27%
Record high62° (1979)
Record low22° (2013)
Thu, 2649° / 39°0.2
49 °
Mount Parnassus, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high49°
Average low39°
Average precipitation0.2 in
Chance of precipitation43%
Record high62° (1979)
Record low25° (1978)
Fri, 2749° / 39°0.13
49 °
Mount Parnassus, Friday, 27 November
Climate normal for this date — 60-year average.
Average high49°
Average low39°
Average precipitation0.13 in
Chance of precipitation35%
Record high61° (1986)
Record low23° (1978)
Sat, 2849° / 39°0.19
49 °
Mount Parnassus, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high49°
Average low39°
Average precipitation0.19 in
Chance of precipitation35%
Record high61° (1990)
Record low19° (2002)
Sun, 2948° / 38°0.08
48 °
Mount Parnassus, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high48°
Average low38°
Average precipitation0.08 in
Chance of precipitation27%
Record high62° (2011)
Record low26° (1989)
Mon, 3046° / 37°0.14
46 °
Mount Parnassus, Monday, 30 November
Climate normal for this date — 60-year average.
Average high46°
Average low37°
Average precipitation0.14 in
Chance of precipitation35%
Record high63° (2020)
Record low24° (2013)
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.