May weather forecastRumson, NJ
May
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).Temperature
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). The nights of May anticipate an average low-temperature of 54.9°F (12.7°C).Humidity
The months with the highest humidity are May and June, with an average relative humidity of 79%.Rainfall
In Rumson, in May, during 12.6 rainfall days, 1.22" (31mm) of precipitation is typically accumulated. In Rumson, during the entire year, the rain falls for 125.1 days and collects up to 12.64" (321mm) of precipitation.Snowfall
April through September and November are months without snowfall.Ocean temperature
In May, the average ocean temperature in Rumson is 54.9°F (12.7°C).Note: In 54.9°F (12.7°C), cold shock and rapid breathing can occur when swimming at temperatures below 50°F (10°C).
Daylight
The average length of the day in May in Rumson is 14h and 26min.On the first day of the month, sunrise is at 5:54 am and sunset at 7:51 pm. On the last day of May, sunrise is at 5:28 am and sunset at 8:19 pm EDT.
Sunshine
The average sunshine in May is 8.9h.UV index
The average daily maximum UV index in May in Rumson is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: In May, the UV index of 5 transforms into the following advice:
Make use of precautions - Suggestions to resist sunburn are communicated. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Rumson, NJ
- Average high temperature in May: 64.9°F
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).
- Average low temperature in May: 54.9°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 in May
Rumson, NJ
- Average pressure in May: 30.01"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 in May
Rumson, NJ
- Average wind speed in May: 9.1mph
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 in May
Rumson, NJ
- Average humidity in May: 79%
The months with the highest relative humidity are May and June (79%).
The month with the lowest relative humidity is November (73%).
Average rainfall in May
Rumson, NJ
- Average rainfall in May: 1.22"
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 in May
Rumson, NJ
- Average rainfall days in May: 12.6 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 in May
Rumson, NJ
- Average snowfall in May: 0"
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 in May
Rumson, NJ
- Average snowfall days in May: 0 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 in May
Rumson, NJ
- Average sea temperature in May: 54.8°F
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 in May /
Average sunshine in May
Rumson, NJ
- Average daylight in May: 14h and 24min
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 May: 8h and 54min
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 in May
Rumson, NJ
- Average sunshine days in May: 16 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 in May
Rumson, NJ
- Average UV index in May: 5
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 in May
Rumson, NJ
- Average cloud cover in May: 42
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 in May
Rumson, NJ
- Average visibility in May: 6mi
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).
