Climate and monthly weather forecastRumson, NJ
Climate and monthly weather forecast
Weather in January
January, the same as December, is another cold winter month in Rumson, New Jersey, with an average temperature ranging between max 37.9°F (3.3°C) and min 28.8°F (-1.8°C). January is the coldest month, with an average high-temperature of 37.9°F (3.3°C) and an average low-temperature of 28.8°F (-1.8°C). Weather in January »Weather in February
The last month of the winter, February, is also a wintry month in Rumson, New Jersey, with an average temperature varying between 30.4°F (-0.9°C) and 40.5°F (4.7°C). The arrival of February marks a slight shift to an average high-temperature of a still wintry 40.5°F (4.7°C) from January's 37.9°F (3.3°C). Weather in February »Weather in March
The first month of the spring, March, is a chilly month in Rumson, New Jersey, with an average temperature varying between 36.3°F (2.4°C) and 46°F (7.8°C). As Rumson transitions into March, the average high-temperature is observed to slightly rise from a cold 40.5°F (4.7°C) in February to a chilly 46°F (7.8°C). Weather in March »Weather in April
April in Rumson, New Jersey, is a moderate spring month, with an average temperature varying between 45.1°F (7.3°C) and 55.6°F (13.1°C). April signals a shift in the average high-temperature, moving from March's frosty 46°F (7.8°C) to a mild 55.6°F (13.1°C). Weather in April »Weather in May
The last month of the spring, May, is an enjoyable month in Rumson, New Jersey, with an average temperature fluctuating between 64.9°F (18.3°C) and 54.9°F (12.7°C). May brings a rise in Rumson's average high-temperature, moving from a mild 55.6°F (13.1°C) in April to a still refreshing 64.9°F (18.3°C). Weather in May »Weather in June
June, the first month of the summer in Rumson, is a moderately hot month, with an average temperature fluctuating between 73.6°F (23.1°C) and 63.9°F (17.7°C). June's arrival brings a slight change in high-temperatures, adjusting from a comfortable 64.9°F (18.3°C) in May to a moderately hot 73.6°F (23.1°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Rumson, New Jersey, with an average temperature ranging between min 71.2°F (21.8°C) and max 80.2°F (26.8°C). July stands out as Rumson's warmest month, with an average high-temperature of 80.2°F (26.8°C) and a low-temperature of 71.2°F (21.8°C). Weather in July »Weather in August
August, the last month of the summer in Rumson, is also a moderately hot month, with an average temperature fluctuating between 70.7°F (21.5°C) and 79.5°F (26.4°C). The dawn of August sees an average high-temperature of a still moderately hot 79.5°F (26.4°C), subtly contrasting with July's 80.2°F (26.8°C). Weather in August »Weather in September
September, the first month of the autumn in Rumson, is still a warm month, with an average temperature fluctuating between 73.8°F (23.2°C) and 64.6°F (18.1°C). As August makes way for September, Rumson's average high-temperature eases from 79.5°F (26.4°C) to a still warm 73.8°F (23.2°C). Weather in September »Weather in October
October, the same as September, is another enjoyable autumn month in Rumson, New Jersey, with an average temperature fluctuating between 54.1°F (12.3°C) and 63.3°F (17.4°C). October indicates a shift in the average high-temperature, from September's warm 73.8°F (23.2°C) to a comfortable 63.3°F (17.4°C). Weather in October »Weather in November
The last month of the autumn, November, is another cool month in Rumson, New Jersey, with an average temperature ranging between min 43.3°F (6.3°C) and max 52.3°F (11.3°C). November brings a decrease in the average high-temperature, shifting from a comfortable 63.3°F (17.4°C) in October to a fresh 52.3°F (11.3°C). Weather in November »Weather in December
The first month of the winter, December, is also a frosty month in Rumson, New Jersey, with temperature in the range of an average low of 36°F (2.2°C) and an average high of 44.2°F (6.8°C). December's arrival comes with a mild decrease in the average high-temperature, moving subtly from a fresh 52.3°F (11.3°C) in November to a chilly 44.2°F (6.8°C). Weather in December »Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Rumson's January weather reaches an average high of 37.9°F (3.3°C) and an average low of 28.8°F (-1.8°C), making it the coldest month.
The month with the least rainfall in Rumson is January, when the rain falls for 6.5 days and typically collects 0.63" (16mm) of precipitation.
Throughout the year, in Rumson, New Jersey, there are 125.1 rainfall days, and 12.64" (321mm) of precipitation is accumulated.
January through March, October and December are months with snowfall in Rumson, New Jersey.
Throughout the year, there are 14.2 snowfall days, and 1.69" (43mm) of snow is accumulated.
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
The month with the coldest seawater in Rumson, New Jersey, is February, with an average ocean temperature of 40.1°F (4.5°C).
The month with the least sunshine in Rumson is February, with an average of 4.9h of sunshine.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Rumson, 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.
April through September and November are months without snowfall in Rumson.
The months with the highest humidity are May and June, with an average relative humidity of 79%.
June has the longest days of the year, with an average of 15h and 0min of daylight.
June through August, with an average maximum UV index of 6, are months with the highest UV index in Rumson.
July stands out as Rumson's warmest month, with temperatures ranging between an average high of 80.2°F (26.8°C) and a low of 71.2°F (21.8°C).
The month with the most rainfall is July, when the rain falls for 15.1 days and typically aggregates up to 1.61" (41mm) of precipitation.
The month with the most sunshine is July, with an average of 10.8h of sunshine.
With an average ocean temperature of 74.7°F (23.7°C), August is the month with the warmest seawater in Rumson, New Jersey.
With an average relative humidity of 73%, November is the least humid month.
The month with the most snowfall in Rumson is December, when snow falls for 3.3 days and typically aggregates up to 0.47" (12mm) of snow.
The month with the shortest days is December, with an average of 9h and 18min of daylight.
Average temperature
Rumson, NJ
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (37.9°F).
The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).
Average pressure
Rumson, NJ
- Average pressure in January:
30.06"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:
29.98"Hg - Average pressure in September:
30.05"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
Rumson, NJ
- Average wind speed in January:
12.4mph - Average wind speed in February:
12mph - Average wind speed in March:
11.8mph - Average wind speed in April:
10.9mph - Average wind speed in May:
9.1mph - Average wind speed in June:
8.3mph
- Average wind speed in July:
7.9mph - Average wind speed in August:
8.1mph - Average wind speed in September:
9.1mph - Average wind speed in October:
10.8mph - Average wind speed in November:
11.5mph - Average wind speed in December:
11.7mph
The windiest month (with the highest average wind speed) is January (12.4mph).
The calmest month (with the lowest average wind speed) is July (7.9mph).
Average humidity
Rumson, NJ
The months with the highest relative humidity are May and June (79%).
The month with the lowest relative humidity is November (73%).
Average rainfall
Rumson, NJ
- Average rainfall in January:
0.63" - Average rainfall in February:
0.71" - Average rainfall in March:
0.83" - Average rainfall in April:
0.94" - Average rainfall in May:
1.22" - Average rainfall in June:
1.14"
- Average rainfall in July:
1.61" - Average rainfall in August:
1.54" - Average rainfall in September:
0.87" - Average rainfall in October:
1.02" - Average rainfall in November:
0.94" - Average rainfall in December:
1.18"
The wettest month (with the highest rainfall) is July (1.61").
The driest month (with the least rainfall) is January (0.63").
Average rainfall days
Rumson, NJ
- Average rainfall days in January:
6.5 days - Average rainfall days in February:
6.9 days - Average rainfall days in March:
10.3 days - Average rainfall days in April:
11.5 days - Average rainfall days in May:
12.6 days - Average rainfall days in June:
11.7 days
- Average rainfall days in July:
15.1 days - Average rainfall days in August:
12.3 days - Average rainfall days in September:
11.5 days - Average rainfall days in October:
10.5 days - Average rainfall days in November:
7 days - Average rainfall days in December:
9.2 days
The month with the highest number of rainy days is July (15.1 days).
The month with the least rainy days is January (6.5 days).
Average snowfall
Rumson, NJ
The month with the highest snowfall is December (0.47").
The months with the least snowfall are April, May, June, July, August, September and November (0").
Average snowfall days
Rumson, NJ
- Average snowfall days in January:
3.9 days - Average snowfall days in February:
3.8 days - Average snowfall days in March:
2.8 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 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:
0.3 days - Average snowfall days in December:
3.3 days
The month with the highest number of snowfall days is January (3.9 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average sea temperature
Rumson, NJ
The best month for swimming (with the highest average sea temperature) is August (74.5°F).
The coldest month (with the lowest average sea temperature) is February (40.1°F).
Average daylight / Average sunshine
Rumson, NJ
- Average daylight in January:
9h and 42min - 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 24min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 42min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 6min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 18min
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:
5h and 6min - Average sunshine in February:
4h and 54min - Average sunshine in March:
6h and 30min - Average sunshine in April:
8h and 36min - Average sunshine in May:
8h and 54min - Average sunshine in June:
10h and 0min
- Average sunshine in July:
10h and 48min - Average sunshine in August:
10h and 30min - Average sunshine in September:
9h and 0min - Average sunshine in October:
5h and 54min - Average sunshine in November:
5h and 36min - Average sunshine in December:
5h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days
Rumson, NJ
- Average sunshine days in January:
21.2 days - Average sunshine days in February:
17.8 days - Average sunshine days in March:
17.5 days - Average sunshine days in April:
16.7 days - Average sunshine days in May:
16 days - Average sunshine days in June:
15.8 days
- Average sunshine days in July:
13 days - Average sunshine days in August:
15.6 days - Average sunshine days in September:
16.7 days - Average sunshine days in October:
18.8 days - Average sunshine days in November:
21.6 days - Average sunshine days in December:
19.1 days
The month with the most sunshine days is November (21.6 days).
The month with the least sunshine days is July (13 days).
Average UV index
Rumson, 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, November and December (UV index 2).
Average cloud cover
Rumson, NJ
The month with the most cloud cover is February (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility
Rumson, NJ
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
