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
With the onset of May, Greenville's weather sees a temperature rise, transitioning from a refreshing 60.1°F (15.6°C) in April to a pleasant 70.3°F (21.3°C). Greenville sees an average low-temperature of 54.3°F (12.4°C) during May.Humidity
The average relative humidity in May is 79%.Rainfall
May is the month with the most rainfall. Rain falls for 18 days and accumulates 2.72" (69mm) of precipitation.Snowfall
May through September are months without snowfall in Greenville.Daylight
In Greenville, the average length of the day in May is 14h and 25min.On the first day of May, sunrise is at 6:37 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 6:11 am and sunset at 9:01 pm EDT.
Sunshine
In May, the average sunshine is 8.7h.UV index
In Greenville, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: A typical high UV index of 5 in May suggests the following recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures in Greenville?
What is the average humidity in May?
What is the wettest month?
How many days does it rain in May?
When it does not snow?
Does it snow in Greenville in May?
What is the average length of the day in May?
What time are sunrise and sunset in May?
How many hours of sunshine does Greenville have in May?
How high is the UV index in May?
Average temperature in May
Greenville, OH
- Average high temperature in May: 70.3°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 (32.2°F).
- Average low temperature in May: 54.3°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 (20.1°F).
Average pressure in May
Greenville, OH
- Average pressure in May: 29.97"Hg
The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Greenville, OH
- Average wind speed in May: 8.2mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in May
Greenville, OH
- Average humidity in May: 79%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (75%).
Average rainfall in May
Greenville, OH
- Average rainfall in May: 2.72"
The wettest month (with the highest rainfall) is May (2.72").
The driest month (with the least rainfall) is February (0.98").
Average rainfall days in May
Greenville, OH
- Average rainfall days in May: 18 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is February (7.1 days).
Average snowfall in May
Greenville, OH
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.54").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Greenville, OH
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Greenville, OH
- Average daylight in May: 14h and 2min
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 24min).
- Average sunshine in May: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in May
Greenville, OH
- Average sunshine days in May: 10.4 days
The month with the most sunshine days is November (19.2 days).
The month with the least sunshine days is May (10.4 days).
Average UV index in May
Greenville, 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
Greenville, OH
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in May
Greenville, OH
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, October, November and December (6mi).
The month with the lowest visibility is September (5mi).
Greenville, Ohio, USA
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