May weather forecastDayton, NJ
May
Weather in May
The last month of the spring, May, is an agreeable month in Dayton, New Jersey, with an average temperature varying between 54°F (12.2°C) and 69.4°F (20.8°C).Temperature
Entering May, Dayton sees a temperature rise, with the average high-temperature advancing from April's refreshing 59.4°F (15.2°C) to an agreeable 69.4°F (20.8°C). In the month of May, Dayton records a consistent average low-temperature of 54°F (12.2°C).Humidity
February, May, October and December, with an average relative humidity of 77%, are the most humid months.Rainfall
In Dayton, during May, the rain falls for 9.8 days and regularly aggregates up to 0.75" (19mm) of precipitation. Throughout the year, there are 92.9 rainfall days, and 7.32" (186mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall in Dayton.Daylight
In May, the average length of the day in Dayton, New Jersey, is 14h and 26min.On the first day of the month, sunrise is at 5:56 am and sunset at 7:53 pm. On the last day of May, sunrise is at 5:30 am and sunset at 8:21 pm EDT.
Sunshine
The average sunshine in May is 8.6h.UV index
The months with the highest UV index in Dayton are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: A daily maximum UV index of 6 in May translates into the following instructions:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Dayton, NJ
- Average high temperature in May: 69.4°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (37°F).
- Average low temperature in May: 54°F
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (25°F).
Average pressure in May
Dayton, 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
Dayton, NJ
- Average wind speed in May: 7.3mph
The windiest month (with the highest average wind speed) is March (9.3mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in May
Dayton, NJ
- Average humidity in May: 77%
The months with the highest relative humidity are February, May, October and December (77%).
The months with the lowest relative humidity are April and August (73%).
Average rainfall in May
Dayton, NJ
- Average rainfall in May: 0.75"
The wettest month (with the highest rainfall) is July (0.94").
The driest month (with the least rainfall) is September (0.28").
Average rainfall days in May
Dayton, NJ
- Average rainfall days in May: 9.8 days
The month with the highest number of rainy days is July (10.7 days).
The months with the least rainy days are January and November (4.8 days).
Average snowfall in May
Dayton, NJ
- Average snowfall in May: 0"
The month with the highest snowfall is March (0.51").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Dayton, NJ
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Dayton, 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 36min
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 42min).
Average sunshine days in May
Dayton, NJ
- Average sunshine days in May: 18 days
The month with the most sunshine days is January (24.2 days).
The month with the least sunshine days is July (15.7 days).
Average UV index in May
Dayton, NJ
- Average UV index in May: 6
The months with the highest UV index are May, 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
Dayton, NJ
- Average cloud cover in May: 46
The months with the most cloud cover are February, March and December (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in May
Dayton, 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).
