Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
In Rocky Hill, stepping into May brings a temperature increase, moving up from April's refreshing 60.4°F (15.8°C) to an agreeable 70.5°F (21.4°C). During May, Rocky Hill witnesses a consistent average low-temperature of 53.2°F (11.8°C).Humidity
In Rocky Hill, New Jersey, the average relative humidity in May is 78%.Rainfall
In Rocky Hill, in May, it is raining for 12.6 days, with typically 1.22" (31mm) of accumulated precipitation. In Rocky Hill, during the entire year, the rain falls for 119.3 days and collects up to 12.72" (323mm) of precipitation.Snowfall
Months with snowfall in Rocky Hill, New Jersey, are January through May, November and December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Rocky Hill aggregates 0.2" (5mm) of snow. Throughout the year, in Rocky Hill, there are 16.4 snowfall days, and 4.41" (112mm) of snow is accumulated.Daylight
The average length of the day in May is 14h and 26min.On the first day of the month, sunrise is at 5:56 am and sunset at 7:54 pm. On the last day of May, in Rocky Hill, sunrise is at 5:30 am and sunset at 8:22 pm EDT.
Sunshine
The average sunshine in May is 8.6h.UV index
In Rocky Hill, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In May, the UV index of 5 transforms into the following advice:
Exercise care. People with light skin might get burns in fewer than 30 minutes. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Frequently asked questions
What is the average May temperature in Rocky Hill?
What is the average humidity in May in Rocky Hill?
How much does it rain in Rocky Hill in May?
What is the last month it snows in Rocky Hill?
How many hours of daylight does Rocky Hill have in May?
When are sunrise and sunset in May in Rocky Hill?
How long on average sun shines in May in Rocky Hill?
How high is the UV index in May in Rocky Hill?
Average temperature in May
Rocky Hill, NJ
- Average high temperature in May: 70.5°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in May: 53.2°F
The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in May
Rocky Hill, 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
Rocky Hill, NJ
- Average wind speed in May: 6.9mph
The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in May
Rocky Hill, NJ
- Average humidity in May: 78%
The month with the highest relative humidity is October (79%).
The month with the lowest relative humidity is April (73%).
Average rainfall in May
Rocky Hill, NJ
- Average rainfall in May: 1.22"
The wettest month (with the highest rainfall) is July (1.69").
The driest month (with the least rainfall) is September (0.67").
Average rainfall days in May
Rocky Hill, NJ
- Average rainfall days in May: 12.6 days
The month with the highest number of rainy days is July (13.9 days).
The month with the least rainy days is January (6.1 days).
Average snowfall in May
Rocky Hill, NJ
- Average snowfall in May: 0.2"
The month with the highest snowfall is March (1.42").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in May
Rocky Hill, NJ
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (4.6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Rocky Hill, NJ
- Average daylight in May: 14h 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 May: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in May
Rocky Hill, NJ
- Average sunshine days in May: 15 days
The month with the most sunshine days is January (21.8 days).
The month with the least sunshine days is July (13.3 days).
Average UV index in May
Rocky Hill, 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, March, November and December (UV index 2).
Average cloud cover in May
Rocky Hill, NJ
- Average cloud cover in May: 46
The months with the most cloud cover are February, March and December (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in May
Rocky Hill, NJ
- Average visibility in May: 5mi
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).
Rocky Hill, New Jersey, USA
Weather forecast for your location
2. Allow the app to use your location
