Climate and monthly weather forecastEast Hanover, NJ
Climate and monthly weather forecast
Weather in January
January, like December, in East Hanover, New Jersey, is an icy winter month, with an average temperature varying between 22.5°F (-5.3°C) and 34.9°F (1.6°C). January stands out as East Hanover's coldest month, with temperatures ranging between an average high of 34.9°F (1.6°C) and a low of 22.5°F (-5.3°C). Weather in January »Weather in February
The last month of the winter, February, is also an icy month in East Hanover, New Jersey, with temperature in the range of an average low of 24.1°F (-4.4°C) and an average high of 38.3°F (3.5°C). East Hanover experiences an average high-temperature of a still wintry 38.3°F (3.5°C) in February, marking an insignificant shift from 34.9°F (1.6°C) in January. Weather in February »Weather in March
The first month of the spring, March, is a chilly month in East Hanover, New Jersey, with an average temperature fluctuating between 46°F (7.8°C) and 31.5°F (-0.3°C). With the beginning of March, East Hanover's average high-temperature sees a minor increase, transitioning from an icy 38.3°F (3.5°C) in February to a chilly 46°F (7.8°C). Weather in March »Weather in April
April is a refreshing spring month in East Hanover, New Jersey, with an average temperature varying between 58.3°F (14.6°C) and 41.7°F (5.4°C). April witnesses an increase in the average high-temperature, moving from a chilly 46°F (7.8°C) in March to a moderate 58.3°F (14.6°C). Weather in April »Weather in May
The last month of the spring, May, is an agreeable month in East Hanover, New Jersey, with an average temperature varying between 68.9°F (20.5°C) and 51.3°F (10.7°C). May witnesses an increase in the average high-temperature, moving from a refreshing 58.3°F (14.6°C) in April to an agreeable 68.9°F (20.5°C). Weather in May »Weather in June
June, the first month of the summer in East Hanover, is a warm month, with an average temperature ranging between max 77.4°F (25.2°C) and min 58.8°F (14.9°C). The start of June is characterized by a subtle increase in the average high-temperature, transitioning from an agreeable 68.9°F (20.5°C) in May to a moderately hot 77.4°F (25.2°C). Weather in June »Weather in July
July, like June, in East Hanover, New Jersey, is a moderately hot summer month, with an average temperature ranging between min 65.7°F (18.7°C) and max 83.7°F (28.7°C). In East Hanover, temperatures reach their average annual highs in July, measuring 83.7°F (28.7°C) and a minimum average of 65.7°F (18.7°C). The average heat index in July is estimated at a hot 91.4°F (33°C). Weather in July »Weather in August
August, the last month of the summer in East Hanover, is also a moderately hot month, with temperature in the range of an average low of 64°F (17.8°C) and an average high of 81.5°F (27.5°C). The average high-temperature during August registers at a still warm 81.5°F (27.5°C), maintaining a close resemblance to the previous month. Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in East Hanover, New Jersey, with an average temperature varying between 57.2°F (14°C) and 74.5°F (23.6°C). The arrival of September signals a subtle shift in temperature, down from a moderately hot 81.5°F (27.5°C) in August to a still warm 74.5°F (23.6°C). Weather in September »Weather in October
October, like September, in East Hanover, New Jersey, is another refreshing autumn month, with temperature in the range of an average low of 47.3°F (8.5°C) and an average high of 62.2°F (16.8°C). The arrival of October corresponds with a temperature reduction, down from September's warm 74.5°F (23.6°C) to an enjoyable 62.2°F (16.8°C). Weather in October »Weather in November
November, the last month of the autumn in East Hanover, is another cool month, with an average temperature varying between 36.5°F (2.5°C) and 50.5°F (10.3°C). The start of November signals a decrease in the average high-temperature, transitioning from a comfortable 62.2°F (16.8°C) in October to a fresh 50.5°F (10.3°C). Weather in November »Weather in December
December, the first month of the winter in East Hanover, is also an icy month, with temperature in the range of an average high of 40.8°F (4.9°C) and an average low of 29.5°F (-1.4°C). The arrival of December corresponds with a shift in temperature, down from a fresh 50.5°F (10.3°C) in November to a cold 40.8°F (4.9°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
East Hanover, NJ
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (34.9°F).
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure
East Hanover, NJ
- Average pressure in January:
30.07"Hg - Average pressure in February:
30.04"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30.06"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.08"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
East Hanover, NJ
- Average wind speed in January:
8.3mph - Average wind speed in February:
8.3mph - Average wind speed in March:
8.5mph - Average wind speed in April:
8mph - Average wind speed in May:
6.5mph - Average wind speed in June:
6.1mph
- Average wind speed in July:
5.4mph - Average wind speed in August:
5.3mph - Average wind speed in September:
5.8mph - Average wind speed in October:
6.9mph - Average wind speed in November:
7.3mph - Average wind speed in December:
7.6mph
The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity
East Hanover, NJ
The months with the highest relative humidity are February, October and December (80%).
The month with the lowest relative humidity is April (74%).
Average rainfall
East Hanover, NJ
- Average rainfall in January:
1.57" - Average rainfall in February:
1.57" - Average rainfall in March:
2.17" - Average rainfall in April:
2.24" - Average rainfall in May:
2.83" - Average rainfall in June:
2.56"
The wettest month (with the highest rainfall) is July (3.19").
The driest months (with the least rainfall) are January, February and September (1.57").
Average rainfall days
East Hanover, NJ
- Average rainfall days in January:
8.3 days - Average rainfall days in February:
9.1 days - Average rainfall days in March:
11.7 days - Average rainfall days in April:
15.4 days - Average rainfall days in May:
18.3 days - Average rainfall days in June:
16.4 days
- Average rainfall days in July:
17.6 days - Average rainfall days in August:
15.5 days - Average rainfall days in September:
12.9 days - Average rainfall days in October:
12.8 days - Average rainfall days in November:
9 days - Average rainfall days in December:
10.9 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (8.3 days).
Average snowfall
East Hanover, NJ
The month with the highest snowfall is March (3.7").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days
East Hanover, NJ
- Average snowfall days in January:
6.6 days - Average snowfall days in February:
6.8 days - Average snowfall days in March:
5.2 days - Average snowfall days in April:
0.7 days - Average snowfall days in May:
0.1 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.8 days - Average snowfall days in December:
3.8 days
The month with the highest number of snowfall days is February (6.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight / Average sunshine
East Hanover, NJ
- Average daylight in January:
9h and 36min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 30min - Average daylight in June:
15h and 6min
- Average daylight in July:
14h and 48min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 54min - Average daylight in December:
9h and 18min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
4h and 54min - Average sunshine in February:
4h and 36min - Average sunshine in March:
6h and 12min - Average sunshine in April:
8h and 0min - Average sunshine in May:
8h and 24min - Average sunshine in June:
9h and 36min
- Average sunshine in July:
10h and 18min - Average sunshine in August:
10h and 0min - Average sunshine in September:
8h and 30min - Average sunshine in October:
5h and 36min - Average sunshine in November:
5h and 24min - Average sunshine in December:
4h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days
East Hanover, NJ
- Average sunshine days in January:
18.3 days - Average sunshine days in February:
14.4 days - Average sunshine days in March:
14.4 days - Average sunshine days in April:
12.5 days - Average sunshine days in May:
11 days - Average sunshine days in June:
11.4 days
- Average sunshine days in July:
10.9 days - Average sunshine days in August:
12.8 days - Average sunshine days in September:
15 days - Average sunshine days in October:
16.2 days - Average sunshine days in November:
19 days - Average sunshine days in December:
16.8 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is July (10.9 days).
Average UV index
East Hanover, NJ
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
East Hanover, NJ
The months with the most cloud cover are February, March and December (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 34).
Average visibility
East Hanover, NJ
The months with the highest visibility are January, February, March, April, July, August, October, November and December (6mi).
The months with the lowest visibility are May, June and September (5mi).





