Monthly outlook for Mount Parnassus, CT: average high 52.5°, average low 39.8°. That is 0.5° above the climate normal for November. Precipitation is expected on 3 days (about 1.5 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 6 November (66.3°), the coolest 15 November (29.9°).
52.5°/39.8°
Average high / low
+0.5°
Above normal
3 / 5
Wet days / normal
1.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
6 November – 15 November
52.4°
52.6°
-0.1°
16 November – 25 November
52.7°
49°
+2.1°
26 November – 5 December
at normal
46.8°
—
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).
Sat, 0762° / 45°0.05
62 °
Mount Parnassus, Saturday, 7 November
Light rain. High 62°, low 45°.
Pressure29.71 inHg
Wind5.5 mph W
Humidity66%
Visibility6.2 mi
Dew point53°
Sun, 0857° / 44°0
57 °
Mount Parnassus, Sunday, 8 November
Overcast. High 57°, low 44°.
Pressure29.77 inHg
Wind14.4 mph W
Humidity56%
Visibility6.2 mi
Dew point42°
Mon, 0951° / 43°0.01
51 °
Mount Parnassus, Monday, 9 November
Light rain. High 51°, low 43°.
Pressure29.77 inHg
Wind13.9 mph NW
Humidity57%
Visibility6.2 mi
Dew point37°
Tue, 1055° / 41°0
55 °
Mount Parnassus, Tuesday, 10 November
Overcast. High 55°, low 41°.
Pressure29.94 inHg
Wind8.4 mph SW
Humidity68%
Visibility—
Dew point37°
Wed, 1156° / 42°0.01
56 °
Mount Parnassus, Wednesday, 11 November
Light rain. High 56°, low 42°.
Pressure29.85 inHg
Wind9.5 mph W
Humidity63%
Visibility—
Dew point39°
Thu, 1246° / 34°0
46 °
Mount Parnassus, Thursday, 12 November
Mostly clear. High 46°, low 34°.
Pressure29.85 inHg
Wind9.6 mph NW
Humidity58%
Visibility—
Dew point30°
Fri, 1344° / 31°0
44 °
Mount Parnassus, Friday, 13 November
Partly cloudy. High 44°, low 31°.
Pressure29.88 inHg
Wind6.2 mph W
Humidity50%
Visibility—
Dew point22°
Sat, 1443° / 31°0
43 °
Mount Parnassus, Saturday, 14 November
Clear. High 43°, low 31°.
Pressure29.88 inHg
Wind10.8 mph NW
Humidity40%
Visibility—
Dew point15°
Sun, 1544° / 30°0
44 °
Mount Parnassus, Sunday, 15 November
Mostly clear. High 44°, low 30°.
Pressure29.88 inHg
Wind12.1 mph NW
Humidity56%
Visibility—
Dew point26°
Mon, 1650° / 33°0
50 °
Mount Parnassus, Monday, 16 November
Clear. High 50°, low 33°.
Pressure30.21 inHg
Wind11.6 mph NW
Humidity49%
Visibility—
Dew point24°
Tue, 1755° / 37°0
55 °
Mount Parnassus, Tuesday, 17 November
Clear. High 55°, low 37°.
Pressure30.15 inHg
Wind11.1 mph NW
Humidity61%
Visibility—
Dew point35°
Wed, 1854° / 37°0
54 °
Mount Parnassus, Wednesday, 18 November
Clear. High 54°, low 37°.
Pressure30.33 inHg
Wind7 mph NW
Humidity53%
Visibility—
Dew point30°
Thu, 1958° / 44°0
58 °
Mount Parnassus, Thursday, 19 November
Overcast. High 58°, low 44°.
Pressure30.09 inHg
Wind11.1 mph SW
Humidity68%
Visibility—
Dew point43°
Fri, 2051° / 41°0
51 °
Mount Parnassus, Friday, 20 November
Overcast. High 51°, low 41°.
Pressure30.18 inHg
Wind9 mph NW
Humidity50%
Visibility—
Dew point29°
Sat, 2148° / 44°0.06
48 °
Mount Parnassus, Saturday, 21 November
Light rain. High 48°, low 44°.
Pressure30.09 inHg
Wind7.4 mph SE
Humidity84%
Visibility—
Dew point41°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Tue, 0146° / 36°0.13
46 °
Mount Parnassus, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high46°
Average low36°
Average precipitation0.13 in
Chance of precipitation40%
Record high63° (2001)
Record low21° (1967)
Wed, 0246° / 36°0.14
46 °
Mount Parnassus, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high46°
Average low36°
Average precipitation0.14 in
Chance of precipitation28%
Record high60° (2006)
Record low17° (1989)
Thu, 0346° / 35°0.16
46 °
Mount Parnassus, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.16 in
Chance of precipitation28%
Record high60° (2009)
Record low15° (1976)
Fri, 0445° / 34°0.11
45 °
Mount Parnassus, Friday, 4 December
Climate normal for this date — 60-year average.
Average high45°
Average low34°
Average precipitation0.11 in
Chance of precipitation27%
Record high63° (1998)
Record low14° (1989)
Sat, 0544° / 34°0.17
44 °
Mount Parnassus, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high44°
Average low34°
Average precipitation0.17 in
Chance of precipitation32%
Record high62° (2001)
Record low16° (2025)
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.