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
May's arrival signals a temperature shift, moving from a mild 57.9°F (14.4°C) in April to an agreeable 69.6°F (20.9°C). May in Sullivan generally records an average low-temperature of 50.7°F (10.4°C).Humidity
In Sullivan, the average relative humidity in May is 79%.Rainfall
In Sullivan, during May, the rain falls for 15.8 days and regularly aggregates up to 1.42" (36mm) of precipitation. Throughout the year, in Sullivan, there are 128.1 rainfall days, and 13.31" (338mm) of precipitation is accumulated.Snowfall
Months with snowfall in Sullivan, Ohio, are January through May, October through December. May is the last month it regularly snows in Sullivan. During 0.3 snowfall days, in May, Sullivan aggregates 0.04" (1mm) of snow. Throughout the year, in Sullivan, Ohio, there are 38.5 snowfall days, and 5.55" (141mm) of snow is accumulated.Daylight
In Sullivan, the average length of the day in May is 14h and 30min.On the first day of the month, sunrise is at 6:25 am and sunset at 8:26 pm. On the last day of May, in Sullivan, sunrise is at 5:58 am and sunset at 8:54 pm EDT.
Sunshine
The average sunshine in May in Sullivan is 8.5h.UV index
In Sullivan, Ohio, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: The daily maximum UV index of 5 in May interprets into the following advice:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. 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
What are the temperatures in Sullivan in May?
What is the average humidity in May in Sullivan?
How many days does it rain in May in Sullivan?
What is the last month it snows in Sullivan?
How many hours of daylight does Sullivan have in May?
What time are sunrise and sunset in May in Sullivan?
How many hours of sunshine does Sullivan have in May?
How high is the UV index in May in Sullivan?
Average temperature in May
Sullivan, 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 (30.9°F).
- Average low temperature in May: 50.7°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure in May
Sullivan, OH
- Average pressure in May: 29.98"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Sullivan, OH
- Average wind speed in May: 7.2mph
The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest month (with the lowest average wind speed) is July (5.6mph).
Average humidity in May
Sullivan, OH
- Average humidity in May: 79%
The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are April and November (78%).
Average rainfall in May
Sullivan, OH
- Average rainfall in May: 1.42"
The wettest month (with the highest rainfall) is July (1.69").
The driest month (with the least rainfall) is February (0.75").
Average rainfall days in May
Sullivan, OH
- Average rainfall days in May: 15.8 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (4.9 days).
Average snowfall in May
Sullivan, OH
- Average snowfall in May: 0.04"
The month with the highest snowfall is February (1.81").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Sullivan, OH
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is February (10.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Sullivan, OH
- Average daylight in May: 14h and 3min
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 3min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in May
Sullivan, OH
- Average sunshine days in May: 11.8 days
The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is May (11.8 days).
Average UV index in May
Sullivan, OH
- Average UV index in May: 5
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Sullivan, OH
- Average cloud cover in May: 44
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in May
Sullivan, OH
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
Sullivan, Ohio, USA
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