May weather forecastDelta, OH
May
Weather in May
The last month of the spring, May, is an agreeable month in Delta, Ohio, with an average temperature ranging between max 69.6°F (20.9°C) and min 52.3°F (11.3°C).Temperature
May's onset witnesses a shift in the average high-temperature, moving from a refreshing 56.8°F (13.8°C) in April to an agreeable 69.6°F (20.9°C). The temperature lowers to an average of 52.3°F (11.3°C) during May nights.Humidity
In Delta, the average relative humidity in May is 77%.Rainfall
In Delta, in May, it is raining for 17.4 days, with typically 2.87" (73mm) of accumulated precipitation. Throughout the year, there are 159.2 rainfall days, and 27.13" (689mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.1 snowfall days, in May, Delta aggregates 0.12" (3mm) of snow. In Delta, during the entire year, snow falls for 52.9 days and aggregates up to 16.81" (427mm) of snow.Daylight
The average length of the day in May is 14h and 32min.On the first day of the month, sunrise is at 6:31 am and sunset at 8:34 pm. On the last day of May, sunrise is at 6:04 am and sunset at 9:03 pm EDT.
Sunshine
The average sunshine in May is 8.6h.UV index
The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: In May, the UV index of 5 transforms into the following advice:
Exercise prevention - Precautions against solar damage are endorsed. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. 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. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Delta, OH
- Average high temperature in May: 69.6°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (29.8°F).
- Average low temperature in May: 52.3°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in May
Delta, OH
- Average pressure in May: 29.98"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
Delta, OH
- Average wind speed in May: 8.2mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in May
Delta, OH
- Average humidity in May: 77%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April and October (75%).
Average rainfall in May
Delta, OH
- Average rainfall in May: 2.87"
The wettest month (with the highest rainfall) is April (3.15").
The driest month (with the least rainfall) is December (1.46").
Average rainfall days in May
Delta, OH
- Average rainfall days in May: 17.4 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (6.7 days).
Average snowfall in May
Delta, OH
- Average snowfall in May: 0.12"
The month with the highest snowfall is January (4.49").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Delta, OH
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Delta, OH
- 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 12min).
- Average sunshine in May: 8h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in May
Delta, OH
- Average sunshine days in May: 11.8 days
The month with the most sunshine days is October (15.4 days).
The month with the least sunshine days is February (9.7 days).
Average UV index in May
Delta, OH
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Delta, OH
- Average cloud cover in May: 42
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in May
Delta, OH
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, July, September, October, November and December (6mi).
The months with the lowest visibility are January, February and August (5mi).





