Monthly outlook for Durham, NH: average high 58.6°, average low 39.6°. That is 0.8° above the climate normal for October. Precipitation is expected on 6 days (about 1.1 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 14 October (78.6°), the coolest 19 October (30.6°).
58.6°/39.6°
Average high / low
+0.8°
Above normal
6 / 5
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
61.1°
57.9°
+1.8°
21 October – 30 October
54.3°
55°
-0.4°
31 October – 9 November
at normal
52.2°
—
October records over 66 years
82.2°3 October 2023All-time high
29.5°24 October 1969All-time low
Climate normals and records are computed from the nearest reference point — New Castle (11 mi).
Mon, 1272° / 43°0.39
72 °
Durham, Monday, 12 October
Rain. High 72°, low 43°.
Pressure29.77 inHg
Wind0.5 mph NW
Humidity70%
Visibility6.2 mi
Dew point54°
Tue, 1359° / 50°0.1
59 °
Durham, Tuesday, 13 October
Light rain. High 59°, low 50°.
Pressure30.06 inHg
Wind8.2 mph SE
Humidity87%
Visibility6.2 mi
Dew point50°
Wed, 1479° / 59°0
79 °
Durham, Wednesday, 14 October
Overcast. High 79°, low 59°.
Pressure29.71 inHg
Wind10.6 mph W
Humidity62%
Visibility6.2 mi
Dew point62°
Thu, 1558° / 45°0
58 °
Durham, Thursday, 15 October
Partly cloudy. High 58°, low 45°.
Pressure30.03 inHg
Wind14.9 mph NW
Humidity48%
Visibility—
Dew point34°
Fri, 1664° / 39°0.26
64 °
Durham, Friday, 16 October
Rain. High 64°, low 39°.
Pressure29.94 inHg
Wind13.2 mph SW
Humidity55%
Visibility—
Dew point32°
Sat, 1766° / 44°0.17
66 °
Durham, Saturday, 17 October
Light rain. High 66°, low 44°.
Pressure29.71 inHg
Wind11.6 mph SW
Humidity89%
Visibility—
Dew point54°
Sun, 1847° / 33°0.11
47 °
Durham, Sunday, 18 October
Snow. High 47°, low 33°.
Pressure30.24 inHg
Wind10.6 mph N
Humidity52%
Visibility—
Dew point25°
Mon, 1951° / 31°0
51 °
Durham, Monday, 19 October
Clear. High 51°, low 31°.
Pressure30.59 inHg
Wind7.3 mph N
Humidity30%
Visibility—
Dew point14°
Tue, 2054° / 31°0
54 °
Durham, Tuesday, 20 October
Overcast. High 54°, low 31°.
Pressure30.47 inHg
Wind3.7 mph NW
Humidity35%
Visibility—
Dew point20°
Wed, 2158° / 36°0
58 °
Durham, Wednesday, 21 October
Clear. High 58°, low 36°.
Pressure30.42 inHg
Wind5.6 mph S
Humidity47%
Visibility—
Dew point31°
Thu, 2262° / 41°0
62 °
Durham, Thursday, 22 October
Overcast. High 62°, low 41°.
Pressure30.12 inHg
Wind13 mph SW
Humidity54%
Visibility—
Dew point37°
Fri, 2361° / 45°0.01
61 °
Durham, Friday, 23 October
Light rain. High 61°, low 45°.
Pressure29.91 inHg
Wind11.4 mph NW
Humidity54%
Visibility—
Dew point42°
Sat, 2447° / 35°0.01
47 °
Durham, Saturday, 24 October
Light rain. High 47°, low 35°.
Pressure30.00 inHg
Wind12.3 mph NW
Humidity64%
Visibility—
Dew point33°
Sun, 2547° / 32°0
47 °
Durham, Sunday, 25 October
Clear. High 47°, low 32°.
Pressure30.27 inHg
Wind8.2 mph NW
Humidity36%
Visibility—
Dew point17°
Mon, 2651° / 31°0
51 °
Durham, Monday, 26 October
Clear. High 51°, low 31°.
Pressure30.50 inHg
Wind4.6 mph SW
Humidity35%
Visibility—
Dew point19°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2754° / 44°0.14
54 °
Durham, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high54°
Average low44°
Average precipitation0.14 in
Chance of precipitation25%
Record high77° (2023)
Record low31° (1976)
Wed, 2855° / 44°0.13
55 °
Durham, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high55°
Average low44°
Average precipitation0.13 in
Chance of precipitation37%
Record high78° (2023)
Record low31° (1976)
Thu, 2953° / 42°0.13
53 °
Durham, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high53°
Average low42°
Average precipitation0.13 in
Chance of precipitation35%
Record high67° (2015)
Record low31° (1965)
Fri, 3052° / 42°0.15
52 °
Durham, Friday, 30 October
Climate normal for this date — 60-year average.
Average high52°
Average low42°
Average precipitation0.15 in
Chance of precipitation28%
Record high65° (1989)
Record low33° (1962)
Sat, 3153° / 42°0.11
53 °
Durham, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high53°
Average low42°
Average precipitation0.11 in
Chance of precipitation25%
Record high76° (2024)
Record low31° (2020)
Sun, 0155° / 44°0.11
55 °
Durham, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high55°
Average low44°
Average precipitation0.11 in
Chance of precipitation30%
Record high74° (2024)
Record low33° (2023)
Mon, 0254° / 43°0.14
54 °
Durham, Monday, 2 November
Climate normal for this date — 60-year average.
Average high54°
Average low43°
Average precipitation0.14 in
Chance of precipitation28%
Record high66° (1971)
Record low28° (2002)
Tue, 0353° / 42°0.22
53 °
Durham, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high53°
Average low42°
Average precipitation0.22 in
Chance of precipitation37%
Record high70° (2017)
Record low28° (2002)
Wed, 0452° / 42°0.08
52 °
Durham, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high52°
Average low42°
Average precipitation0.08 in
Chance of precipitation20%
Record high68° (1987)
Record low31° (2002)
Thu, 0553° / 42°0.19
53 °
Durham, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high53°
Average low42°
Average precipitation0.19 in
Chance of precipitation38%
Record high73° (2022)
Record low29° (1965)
Fri, 0652° / 43°0.13
52 °
Durham, Friday, 6 November
Climate normal for this date — 60-year average.
Average high52°
Average low43°
Average precipitation0.13 in
Chance of precipitation37%
Record high77° (2024)
Record low31° (1987)
Sat, 0751° / 41°0.05
51 °
Durham, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high51°
Average low41°
Average precipitation0.05 in
Chance of precipitation22%
Record high71° (2022)
Record low27° (2002)
Sun, 0850° / 40°0.1
50 °
Durham, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high50°
Average low40°
Average precipitation0.1 in
Chance of precipitation30%
Record high62° (1996)
Record low27° (2002)
Mon, 0950° / 40°0.13
50 °
Durham, Monday, 9 November
Climate normal for this date — 60-year average.
Average high50°
Average low40°
Average precipitation0.13 in
Chance of precipitation32%
Record high64° (1975)
Record low25° (1971)
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 Durham, NH 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 Durham, NH 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.