Monthly outlook for Hanover, NJ: average high 82.2°, average low 65.5°. That is 0.7° above the climate normal for August. Precipitation is expected on 5 days (about 3.3 inches), against a normal of 6 days and 2.3 inches. The warmest day looks like 11 August (92.6°), the coolest 15 August (57.2°).
82.2°/65.5°
Average high / low
+0.7°
Above normal
5 / 6
Wet days / normal
3.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
84.5°
81.8°
+1.5°
18 August – 27 August
78.5°
79.9°
-0.8°
28 August – 6 September
at normal
78.7°
—
August records over 66 years
99.1°2 August 2006All-time high
47.3°30 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Caldwell (8 mi).
Sun, 0990° / 72°0
90 °
Hanover, Sunday, 9 August
Clear. High 90°, low 72°.
Pressure29.97 inHg
Wind6.8 mph W
Humidity42%
Visibility6.2 mi
Dew point64°
Mon, 1090° / 72°0.02
90 °
Hanover, Monday, 10 August
Light rain. High 90°, low 72°.
Pressure30.00 inHg
Wind7 mph SW
Humidity46%
Visibility6.2 mi
Dew point62°
Tue, 1193° / 72°0.04
93 °
Hanover, Tuesday, 11 August
Light rain. High 93°, low 72°.
Pressure29.88 inHg
Wind7.3 mph NW
Humidity34%
Visibility6.2 mi
Dew point56°
Wed, 1282° / 70°0.19
82 °
Hanover, Wednesday, 12 August
Rain. High 82°, low 70°.
Pressure29.74 inHg
Wind5.8 mph NW
Humidity56%
Visibility6.2 mi
Dew point65°
Thu, 1386° / 66°0
86 °
Hanover, Thursday, 13 August
Overcast. High 86°, low 66°.
Pressure29.74 inHg
Wind13.5 mph NW
Humidity40%
Visibility—
Dew point58°
Fri, 1478° / 63°0
78 °
Hanover, Friday, 14 August
Mostly clear. High 78°, low 63°.
Pressure29.94 inHg
Wind9.5 mph N
Humidity31%
Visibility—
Dew point43°
Sat, 1577° / 57°0
77 °
Hanover, Saturday, 15 August
Clear. High 77°, low 57°.
Pressure30.15 inHg
Wind11.5 mph NW
Humidity32%
Visibility—
Dew point43°
Sun, 1679° / 58°0
79 °
Hanover, Sunday, 16 August
Mostly clear. High 79°, low 58°.
Pressure30.27 inHg
Wind5.7 mph NW
Humidity27%
Visibility—
Dew point40°
Mon, 1783° / 60°0
83 °
Hanover, Monday, 17 August
Light rain. High 83°, low 60°.
Pressure30.15 inHg
Wind6.7 mph SW
Humidity30%
Visibility—
Dew point46°
Tue, 1877° / 66°0.13
77 °
Hanover, Tuesday, 18 August
Light rain. High 77°, low 66°.
Pressure29.94 inHg
Wind7.7 mph W
Humidity71%
Visibility—
Dew point66°
Wed, 1985° / 68°0.01
85 °
Hanover, Wednesday, 19 August
Light rain. High 85°, low 68°.
Pressure29.85 inHg
Wind8.1 mph N
Humidity38%
Visibility—
Dew point55°
Thu, 2082° / 64°0
82 °
Hanover, Thursday, 20 August
Overcast. High 82°, low 64°.
Pressure29.97 inHg
Wind5.4 mph N
Humidity41%
Visibility—
Dew point54°
Fri, 2172° / 66°2.25
72 °
Hanover, Friday, 21 August
Heavy rain. High 72°, low 66°.
Pressure29.91 inHg
Wind8.2 mph SE
Humidity80%
Visibility—
Dew point63°
Sat, 2283° / 66°0.66
83 °
Hanover, Saturday, 22 August
Heavy rain. High 83°, low 66°.
Pressure29.74 inHg
Wind7.2 mph NW
Humidity54%
Visibility—
Dew point62°
Sun, 2371° / 57°0
71 °
Hanover, Sunday, 23 August
Clear. High 71°, low 57°.
Pressure29.97 inHg
Wind14.8 mph NW
Humidity42%
Visibility—
Dew point43°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2480° / 63°0.07
80 °
Hanover, Monday, 24 August
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.07 in
Chance of precipitation23%
Record high92° (1998)
Record low52° (1971)
Tue, 2581° / 63°0.07
81 °
Hanover, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high81°
Average low63°
Average precipitation0.07 in
Chance of precipitation23%
Record high94° (1968)
Record low51° (1971)
Wed, 2681° / 64°0.08
81 °
Hanover, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.08 in
Chance of precipitation25%
Record high91° (1993)
Record low54° (1960)
Thu, 2781° / 65°0.16
81 °
Hanover, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.16 in
Chance of precipitation32%
Record high94° (2020)
Record low56° (1969)
Fri, 2880° / 66°0.22
80 °
Hanover, Friday, 28 August
Climate normal for this date — 60-year average.
Average high80°
Average low66°
Average precipitation0.22 in
Chance of precipitation40%
Record high94° (2018)
Record low55° (1968)
Sat, 2980° / 65°0.15
80 °
Hanover, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high80°
Average low65°
Average precipitation0.15 in
Chance of precipitation37%
Record high93° (2018)
Record low49° (1982)
Sun, 3080° / 64°0.06
80 °
Hanover, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.06 in
Chance of precipitation28%
Record high92° (1973)
Record low47° (1986)
Mon, 3179° / 64°0.06
79 °
Hanover, Monday, 31 August
Climate normal for this date — 60-year average.
Average high79°
Average low64°
Average precipitation0.06 in
Chance of precipitation18%
Record high92° (2010)
Record low49° (1986)
Tue, 0178° / 63°0.13
78 °
Hanover, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high78°
Average low63°
Average precipitation0.13 in
Chance of precipitation32%
Record high93° (2010)
Record low53° (2017)
Wed, 0278° / 62°0.17
78 °
Hanover, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.17 in
Chance of precipitation40%
Record high94° (1980)
Record low51° (2017)
Thu, 0378° / 62°0.13
78 °
Hanover, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.13 in
Chance of precipitation37%
Record high91° (2015)
Record low49° (1967)
Fri, 0479° / 63°0.12
79 °
Hanover, Friday, 4 September
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.12 in
Chance of precipitation32%
Record high91° (2023)
Record low52° (1997)
Sat, 0578° / 63°0.06
78 °
Hanover, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high78°
Average low63°
Average precipitation0.06 in
Chance of precipitation22%
Record high95° (2023)
Record low52° (1987)
Sun, 0677° / 62°0.2
77 °
Hanover, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high77°
Average low62°
Average precipitation0.2 in
Chance of precipitation30%
Record high95° (2018)
Record low50° (1984)
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 Hanover, NJ 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 Hanover, NJ 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.