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
A shift in the average high-temperature is noticeable in May, changing from a moderate 58.5°F (14.7°C) in April to a pleasant 69.1°F (20.6°C). An average low-temperature of 51.4°F (10.8°C) is observed during the May nights.Humidity
The average relative humidity in May is 77%.Rainfall
In May, in Chatham, the rain falls for 17.3 days. Throughout May, 2.91" (74mm) of precipitation is accumulated. Throughout the year, there are 164.2 rainfall days, and 30.67" (779mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Chatham aggregates 0.24" (6mm) of snow. In Chatham, during the entire year, snow falls for 26 days and aggregates up to 11.61" (295mm) of snow.Daylight
In Chatham, the average length of the day in May is 14h and 28min.On the first day of the month, sunrise is at 5:54 am and sunset at 7:54 pm. On the last day of May, sunrise is at 5:28 am and sunset at 8:22 pm EDT.
Sunshine
In May, the average sunshine is 8.4h.UV index
In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In May, a daily maximum UV index of 5 leads to the following instructions:
Put precautions into practice - Ensuring skin and eye safety is a necessity. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Chatham in May?
What is the average humidity in May?
How many days does it rain in May?
What is the last month it snows?
What is the average length of the day in May in Chatham?
When are sunrise and sunset in May?
How many hours of sunshine does Chatham have in May?
What is the UV index intensity in May?
Average temperature in May
Chatham, NJ
- Average high temperature in May: 69.1°F
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).
- Average low temperature in May: 51.4°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 in May
Chatham, 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
Chatham, NJ
- Average wind speed in May: 6.6mph
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 in May
Chatham, NJ
- Average humidity in May: 77%
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 in May
Chatham, NJ
- Average rainfall in May: 2.91"
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 in May
Chatham, NJ
- Average rainfall days in May: 17.3 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 in May
Chatham, NJ
- Average snowfall in May: 0.24"
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 in May
Chatham, NJ
- Average snowfall days in May: 0.1 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 in May /
Average sunshine in May
Chatham, NJ
- Average daylight in May: 14h and 3min
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 2min
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 in May
Chatham, NJ
- Average sunshine days in May: 12.1 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 in May
Chatham, 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
Chatham, NJ
- Average cloud cover in May: 47
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 in May
Chatham, 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).
Chatham, New Jersey, USA
Weather forecast for your location
2. Allow the app to use your location