Monthly outlook for Jefferson, NY: average high 55.4°, average low 39.5°. That is 1.7° above the climate normal for October. Precipitation is expected on 5 days (about 1.3 inches), against a normal of 6 days and 2.1 inches. The warmest day looks like 16 October (67.3°), the coolest 18 October (28.5°).
55.4°/39.5°
Average high / low
+1.7°
Above normal
5 / 6
Wet days / normal
1.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
14 October – 23 October
56.4°
53.4°
+1.6°
24 October – 2 November
53.8°
50.2°
+2°
3 November – 12 November
at normal
46°
—
October records over 66 years
81.1°4 October 2023All-time high
19.2°31 October 2011All-time low
Climate normals and records are computed from the nearest reference point — Summit (6 mi).
Thu, 1558° / 42°0
58 °
Jefferson, Thursday, 15 October
Overcast. High 58°, low 42°.
Pressure30.24 inHg
Wind3.5 mph E
Humidity56%
Visibility6.2 mi
Dew point36°
Fri, 1667° / 46°0.28
67 °
Jefferson, Friday, 16 October
Rain. High 67°, low 46°.
Pressure29.68 inHg
Wind17.2 mph SW
Humidity86%
Visibility6.2 mi
Dew point57°
Sat, 1745° / 32°0
45 °
Jefferson, Saturday, 17 October
Overcast. High 45°, low 32°.
Pressure30.24 inHg
Wind12.6 mph NW
Humidity71%
Visibility6.2 mi
Dew point26°
Sun, 1850° / 29°0
50 °
Jefferson, Sunday, 18 October
Clear. High 50°, low 29°.
Pressure30.56 inHg
Wind0.9 mph S
Humidity53%
Visibility6.2 mi
Dew point24°
Mon, 1958° / 32°0
58 °
Jefferson, Monday, 19 October
Partly cloudy. High 58°, low 32°.
Pressure30.45 inHg
Wind6.5 mph N
Humidity42%
Visibility—
Dew point27°
Tue, 2056° / 37°0
56 °
Jefferson, Tuesday, 20 October
Overcast. High 56°, low 37°.
Pressure30.33 inHg
Wind8.4 mph NW
Humidity68%
Visibility—
Dew point39°
Wed, 2156° / 38°0
56 °
Jefferson, Wednesday, 21 October
Clear. High 56°, low 38°.
Pressure30.42 inHg
Wind4.8 mph NE
Humidity59%
Visibility—
Dew point35°
Thu, 2257° / 37°0
57 °
Jefferson, Thursday, 22 October
Overcast. High 57°, low 37°.
Pressure30.33 inHg
Wind11.2 mph SW
Humidity67%
Visibility—
Dew point39°
Fri, 2353° / 48°0.19
53 °
Jefferson, Friday, 23 October
Light rain. High 53°, low 48°.
Pressure30.18 inHg
Wind5 mph S
Humidity93%
Visibility—
Dew point49°
Sat, 2462° / 50°0
62 °
Jefferson, Saturday, 24 October
Light rain. High 62°, low 50°.
Pressure30.33 inHg
Wind9.4 mph S
Humidity85%
Visibility—
Dew point51°
Sun, 2563° / 54°0.05
63 °
Jefferson, Sunday, 25 October
Light rain. High 63°, low 54°.
Pressure30.15 inHg
Wind14.6 mph SW
Humidity73%
Visibility—
Dew point53°
Mon, 2649° / 35°0.69
49 °
Jefferson, Monday, 26 October
Rain. High 49°, low 35°.
Pressure30.15 inHg
Wind13.5 mph NW
Humidity71%
Visibility—
Dew point35°
Tue, 2744° / 30°0
44 °
Jefferson, Tuesday, 27 October
Clear. High 44°, low 30°.
Pressure30.36 inHg
Wind8.7 mph N
Humidity54%
Visibility—
Dew point24°
Wed, 2850° / 30°0
50 °
Jefferson, Wednesday, 28 October
Overcast. High 50°, low 30°.
Pressure30.27 inHg
Wind7.7 mph SW
Humidity44%
Visibility—
Dew point23°
Thu, 2955° / 36°0
55 °
Jefferson, Thursday, 29 October
Overcast. High 55°, low 36°.
Pressure30.12 inHg
Wind8.7 mph SW
Humidity50%
Visibility—
Dew point31°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 3049° / 34°0.11
49 °
Jefferson, Friday, 30 October
Climate normal for this date — 60-year average.
Average high49°
Average low34°
Average precipitation0.11 in
Chance of precipitation23%
Record high69° (2024)
Record low22° (2008)
Sat, 3150° / 34°0.06
50 °
Jefferson, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high50°
Average low34°
Average precipitation0.06 in
Chance of precipitation22%
Record high71° (2024)
Record low19° (2011)
Sun, 0150° / 36°0.1
50 °
Jefferson, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.1 in
Chance of precipitation32%
Record high68° (1974)
Record low25° (2011)
Mon, 0250° / 36°0.13
50 °
Jefferson, Monday, 2 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.13 in
Chance of precipitation40%
Record high70° (1982)
Record low20° (1965)
Tue, 0350° / 35°0.1
50 °
Jefferson, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.1 in
Chance of precipitation47%
Record high68° (1982)
Record low19° (1993)
Wed, 0447° / 34°0.07
47 °
Jefferson, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.07 in
Chance of precipitation25%
Record high68° (1994)
Record low22° (2013)
Thu, 0547° / 34°0.13
47 °
Jefferson, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.13 in
Chance of precipitation40%
Record high68° (2024)
Record low13° (1962)
Fri, 0647° / 34°0.1
47 °
Jefferson, Friday, 6 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.1 in
Chance of precipitation40%
Record high69° (2022)
Record low21° (1962)
Sat, 0745° / 33°0.08
45 °
Jefferson, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.08 in
Chance of precipitation38%
Record high67° (1975)
Record low6° (1962)
Sun, 0845° / 32°0.11
45 °
Jefferson, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.11 in
Chance of precipitation32%
Record high65° (2020)
Record low17° (2002)
Mon, 0946° / 32°0.12
46 °
Jefferson, Monday, 9 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.12 in
Chance of precipitation33%
Record high67° (2020)
Record low16° (1971)
Tue, 1046° / 32°0.1
46 °
Jefferson, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.1 in
Chance of precipitation52%
Record high68° (2020)
Record low15° (2017)
Wed, 1144° / 32°0.14
44 °
Jefferson, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high44°
Average low32°
Average precipitation0.14 in
Chance of precipitation47%
Record high64° (2022)
Record low11° (2017)
Thu, 1243° / 30°0.15
43 °
Jefferson, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high43°
Average low30°
Average precipitation0.15 in
Chance of precipitation45%
Record high64° (1964)
Record low14° (2019)
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 Jefferson, NY 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 Jefferson, NY 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.