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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, is a wintry winter month in Summit, New Jersey, with an average temperature varying between 35.1°F (1.7°C) and 22.5°F (-5.3°C). The month of January, characterized by an average high of 35.1°F (1.7°C) and a low of 22.5°F (-5.3°C), is recognized as the coldest. Weather in January »
Weather in February
February, the last month of the winter in Summit, is also a wintry month, with temperature in the range of an average low of 24.3°F (-4.3°C) and an average high of 38.3°F (3.5°C). The shift to February signals an average high-temperature of a still icy 38.3°F (3.5°C), subtly varied from January's 35.1°F (1.7°C). Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in Summit, New Jersey, with an average temperature varying between 46.4°F (8°C) and 31.6°F (-0.2°C). Summit in March denotes a subtle temperature transition, adjusting from an average high of a wintry 38.3°F (3.5°C) in February to a chilly 46.4°F (8°C). Weather in March »
Weather in April
April is a moderate spring month in Summit, New Jersey, with an average temperature varying between 41.9°F (5.5°C) and 58.5°F (14.7°C). The rise of average high-temperatures is seen in April, with an increase from a chilly 46.4°F (8°C) in March to a refreshing 58.5°F (14.7°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Summit, New Jersey, with temperature in the range of an average low of 51.4°F (10.8°C) and an average high of 69.1°F (20.6°C). Summit in May shows a temperature shift, moving from an average high of a refreshing 58.5°F (14.7°C) in April to a pleasant 69.1°F (20.6°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Summit, New Jersey, with an average temperature fluctuating between 59°F (15°C) and 77.5°F (25.3°C). The shift from May to June introduces a subtle increase in the average high-temperature, moving from an agreeable 69.1°F (20.6°C) to a warm 77.5°F (25.3°C). Weather in June »
Weather in July
July, like June, in Summit, New Jersey, is a moderately hot summer month, with an average temperature fluctuating between 65.7°F (18.7°C) and 83.7°F (28.7°C). In Summit, the peak average temperatures are observed in July, with a high of 83.7°F (28.7°C) and a low of 65.7°F (18.7°C). In July, the average heat index is appraised at a hot 91.4°F (33°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Summit, New Jersey, with an average temperature varying between 64.2°F (17.9°C) and 81.9°F (27.7°C). The introduction of August sees an average high-temperature of a still warm 81.9°F (27.7°C), hardly deviating from July. Weather in August »
Weather in September
September, the first month of the autumn in Summit, is still a warm month, with an average temperature varying between 57.6°F (14.2°C) and 74.5°F (23.6°C). The shift from August to September coincides with a small decrease in the average high-temperature, down to a still warm 74.5°F (23.6°C) from 81.9°F (27.7°C). Weather in September »
Weather in October
October, the same as September, is another comfortable autumn month in Summit, New Jersey, with temperature in the range of an average high of 62.2°F (16.8°C) and an average low of 47.5°F (8.6°C). October weather is marked by a drop in the average high-temperature, falling from a moderately hot 74.5°F (23.6°C) in September to an enjoyable 62.2°F (16.8°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a fresh month in Summit, New Jersey, with temperature in the range of an average high of 50.5°F (10.3°C) and an average low of 36.5°F (2.5°C). Summit in November demonstrates a small temperature transition, adjusting from an average high of an enjoyable 62.2°F (16.8°C) in October to a cool 50.5°F (10.3°C). Weather in November »
Weather in December
December, the first month of the winter in Summit, is still a cold month, with an average temperature varying between 40.8°F (4.9°C) and 29.7°F (-1.3°C). In December, the average high-temperature decreases from a cool 50.5°F (10.3°C) in November to a wintry 40.8°F (4.9°C). Weather in December »
[Resources]Frequently asked questions
What is the coldest time of year in Summit?
Summit reaches its average lowest temperatures in January, measuring 35.1°F (1.7°C) at the peak and 22.5°F (-5.3°C) at the lowest.
How many days does it rain in Summit?
Throughout the year, in Summit, there are 164.2 rainfall days, and 30.67" (779mm) of precipitation is accumulated.
When does it snow in Summit?
January through May, October through December are months with snowfall in Summit, New Jersey.
How many days does it snow in Summit?
In Summit, New Jersey, during the entire year, snow falls for 26 days and aggregates up to 11.61" (295mm) of snow.
What is the month with the lowest UV index in Summit?
The months with the lowest UV index in Summit are January through March, November and December, with an average maximum UV index of 2.
What is the most humid month in Summit?
The months with the highest humidity are February and December, with an average relative humidity of 80%.
What is the month with the least sunshine in Summit?
The month with the least sunshine in Summit, New Jersey, is February, with an average of 4.6h of sunshine.
What is the snowiest month in Summit?
March is the month with the most snowfall. Snow falls for 5.5 days and accumulates 3.5" (89mm) of snow.
When is Daylight Saving Time (DST) in Summit?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Summit, New Jersey, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
What are the least humid months in Summit?
April and August, with an average relative humidity of 74%, are the least humid months in Summit.
When it does not snow in Summit?
In Summit, New Jersey, snow does not fall in June through September.
When are the longest days in Summit?
June has the longest days of the year, with an average of 15h and 0min of daylight.
When is the highest UV index in Summit?
The months with the highest UV index in Summit, New Jersey, are June through August, with an average maximum UV index of 6.
What month is the hottest in Summit?
July, marked by an average high-temperature of 83.7°F (28.7°C) and a low-temperature of 65.7°F (18.7°C), is the warmest month.
What is the wettest month in Summit?
The month with the most rainfall is July, when the rain falls for 17.4 days and typically aggregates up to 3.27" (83mm) of precipitation.
What month has the most sunshine in Summit?
The month with the most sunshine in Summit is July, with an average of 10.3h of sunshine.
What is the driest month in Summit?
The month with the least rainfall in Summit is September, when the rain falls for 13.5 days and typically collects 1.69" (43mm) of precipitation.
What is the month with the shortest days in Summit?
The month with the shortest days in Summit is December, with an average of 9h and 18min of daylight.
Average temperature
Summit, 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 (35.1°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
Summit, 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
Summit, 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:
8.1mph - Average wind speed in May:
6.6mph - Average wind speed in June:
6.2mph
- 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:
7mph - 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
Summit, NJ
The months with the highest relative humidity are February and December (80%).
The months with the lowest relative humidity are April and August (74%).
Average rainfall
Summit, NJ
- Average rainfall in January:
1.93" - Average rainfall in February:
2.17" - Average rainfall in March:
2.6" - Average rainfall in April:
2.4" - Average rainfall in May:
2.91" - Average rainfall in June:
2.64"
- Average rainfall in July:
3.27" - Average rainfall in August:
2.72" - Average rainfall in September:
1.69" - Average rainfall in October:
2.99" - Average rainfall in November:
2.32" - Average rainfall in December:
3.03"
The wettest month (with the highest rainfall) is July (3.27").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days
Summit, NJ
- Average rainfall days in January:
8.8 days - Average rainfall days in February:
9.8 days - Average rainfall days in March:
12.8 days - Average rainfall days in April:
15.8 days - Average rainfall days in May:
17.3 days - Average rainfall days in June:
17.3 days
- Average rainfall days in July:
17.4 days - Average rainfall days in August:
16.3 days - Average rainfall days in September:
13.5 days - Average rainfall days in October:
14.1 days - Average rainfall days in November:
9.5 days - Average rainfall days in December:
11.6 days
The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is January (8.8 days).
Average snowfall
Summit, NJ
The month with the highest snowfall is March (3.5").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Summit, NJ
- Average snowfall days in January:
7.6 days - Average snowfall days in February:
7.3 days - Average snowfall days in March:
5.5 days - Average snowfall days in April:
0.6 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:
0.1 days - Average snowfall days in November:
0.8 days - Average snowfall days in December:
4 days
The month with the highest number of snowfall days is January (7.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Summit, NJ
- Average daylight in January:
9h and 4min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 3min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
4h and 5min - Average sunshine in February:
4h and 4min - Average sunshine in March:
6h and 1min - Average sunshine in April:
8h and 1min - Average sunshine in May:
8h and 2min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 1min - Average sunshine in September:
8h and 3min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 2min - Average sunshine in December:
4h and 5min
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
Summit, NJ
- Average sunshine days in January:
16.9 days - Average sunshine days in February:
13.5 days - Average sunshine days in March:
13.1 days - Average sunshine days in April:
11.4 days - Average sunshine days in May:
12.1 days - Average sunshine days in June:
10.5 days
- Average sunshine days in July:
11.9 days - Average sunshine days in August:
12.5 days - Average sunshine days in September:
14.2 days - Average sunshine days in October:
15.5 days - Average sunshine days in November:
18.3 days - Average sunshine days in December:
15.6 days
The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is June (10.5 days).
Average UV index
Summit, 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
Summit, NJ
The months with the most cloud cover are February and March (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 34).
Average visibility
Summit, NJ
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Summit, New Jersey, USA
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