May weather forecastFairfield, NJ
May
Weather in May
The last month of the spring, May, is an agreeable month in Fairfield, New Jersey, with temperature in the range of an average high of 69.1°F (20.6°C) and an average low of 51.8°F (11°C).Temperature
As Fairfield welcomes May, the average high-temperature sees a rise, transitioning from a mild 58.5°F (14.7°C) in April to an agreeable 69.1°F (20.6°C). Throughout May, the temperature falls to an average low of 51.8°F (11°C).Humidity
The average relative humidity in May is 76%.Rainfall
In Fairfield, in May, during 17.6 rainfall days, 2.8" (71mm) of precipitation is typically accumulated. Throughout the year, there are 158 rainfall days, and 27.4" (696mm) of precipitation is accumulated.Snowfall
January through May, November and December are months with snowfall. May is the last month it regularly snows. During 0.1 snowfall days, in May, Fairfield aggregates 0.2" (5mm) of snow. In Fairfield, during the entire year, snow falls for 24.3 days and aggregates up to 9.96" (253mm) of snow.Daylight
In May, the average length of the day in Fairfield is 14h and 29min.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 5:27 am and sunset at 8:22 pm EDT.
Sunshine
In May, the average sunshine is 8.4h.UV index
The average daily maximum UV index in May in Fairfield is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index, 5 during May, leads to the following recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Fairfield, NJ
- Average high temperature in May: 69.1°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (34.9°F).
- Average low temperature in May: 51.8°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure in May
Fairfield, 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
Fairfield, NJ
- Average wind speed in May: 6.6mph
The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in May
Fairfield, NJ
- Average humidity in May: 76%
The months with the highest relative humidity are February and December (79%).
The months with the lowest relative humidity are April and August (73%).
Average rainfall in May
Fairfield, NJ
- Average rainfall in May: 2.8"
The wettest month (with the highest rainfall) is July (3.15").
The driest month (with the least rainfall) is January (1.57").
Average rainfall days in May
Fairfield, NJ
- Average rainfall days in May: 17.6 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in May
Fairfield, NJ
- Average snowfall in May: 0.2"
The month with the highest snowfall is March (3.58").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in May
Fairfield, NJ
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is February (7 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
Fairfield, NJ
- Average daylight in May: 14h and 30min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in May: 8h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in May
Fairfield, NJ
- Average sunshine days in May: 11.3 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is July (10.7 days).
Average UV index in May
Fairfield, 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
Fairfield, NJ
- Average cloud cover in May: 47
The months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in May
Fairfield, 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).
