May weather forecastNew Haven, WV
May
Weather in May
May, the last month of the spring in New Haven, is a warm month, with an average temperature fluctuating between 54.5°F (12.5°C) and 75.4°F (24.1°C).Temperature
An escalation in the average high-temperature is seen with the onset of May, moving from an enjoyable 64.4°F (18°C) in April to a moderately hot 75.4°F (24.1°C). Throughout the month of May, New Haven expects an average low of 54.5°F (12.5°C).Humidity
In New Haven, the average relative humidity in May is 78%.Rainfall
May is the month with the most rainfall. Rain falls for 19.4 days and accumulates 4.02" (102mm) of precipitation.Snowfall
In New Haven, snow does not fall in May through September.Daylight
In May, the average length of the day is 14h and 19min.On the first day of May, sunrise is at 6:28 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 6:04 am and sunset at 8:47 pm EDT.
Sunshine
In New Haven, the average sunshine in May is 8.7h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the average person.Note: The daily high UV index of 6 in May translates into this advice:
Resist extreme sun exposure. Guarding against solar damage is essential. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. 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
Average temperature in May
New Haven, WV
- Average high temperature in May: 75.4°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in May: 54.5°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).
Average pressure in May
New Haven, WV
- Average pressure in May: 30"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in May
New Haven, WV
- Average wind speed in May: 5.7mph
The windiest month (with the highest average wind speed) is February (7mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in May
New Haven, WV
- Average humidity in May: 78%
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is August (74%).
Average rainfall in May
New Haven, WV
- Average rainfall in May: 4.02"
The wettest month (with the highest rainfall) is May (4.02").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in May
New Haven, WV
- Average rainfall days in May: 19.4 days
The month with the highest number of rainy days is May (19.4 days).
The month with the least rainy days is November (10.7 days).
Average snowfall in May
New Haven, WV
- Average snowfall in May: 0"
The month with the highest snowfall is February (3.66").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
New Haven, WV
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
New Haven, WV
- Average daylight in May: 14h and 18min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in May: 8h and 42min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in May
New Haven, WV
- Average sunshine days in May: 9.4 days
The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is May (9.4 days).
Average UV index in May
New Haven, WV
- 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, November and December (UV index 2).
Average cloud cover in May
New Haven, WV
- Average cloud cover in May: 46
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in May
New Haven, WV
- Average visibility in May: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
