May weather forecastVandalia, OH
May
Weather in May
May, the last month of the spring in Vandalia, is an agreeable month, with temperature in the range of an average high of 71.2°F (21.8°C) and an average low of 54.5°F (12.5°C).Temperature
Vandalia's transition into May brings a rise in the average high-temperature, moving from a refreshing 60.4°F (15.8°C) in April to a pleasant 71.2°F (21.8°C). Throughout May, an average nighttime temperature of 54.5°F (12.5°C) is experienced.Humidity
In Vandalia, the average relative humidity in May is 79%.Rainfall
The month with the most rainfall is May, when the rain falls for 17.5 days and typically aggregates up to 2.36" (60mm) of precipitation.Snowfall
In Vandalia, snow does not fall in May through September.Daylight
In Vandalia, the average length of the day in May is 14h and 24min.On the first day of the month, sunrise is at 6:35 am and sunset at 8:31 pm. On the last day of May, sunrise is at 6:10 am and sunset at 8:58 pm EDT.
Sunshine
In Vandalia, the average sunshine in May is 8.9h.UV index
In Vandalia, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: During May, 5 as the daily maximum UV index converts into the following advice:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. 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
Vandalia, OH
- Average high temperature in May: 71.2°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (32.7°F).
- Average low temperature in May: 54.5°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).
Average pressure in May
Vandalia, OH
- Average pressure in May: 29.98"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
Vandalia, OH
- Average wind speed in May: 7.9mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in May
Vandalia, OH
- Average humidity in May: 79%
The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are October and November (75%).
Average rainfall in May
Vandalia, OH
- Average rainfall in May: 2.36"
The wettest month (with the highest rainfall) is May (2.36").
The driest months (with the least rainfall) are January, February and November (0.98").
Average rainfall days in May
Vandalia, OH
- Average rainfall days in May: 17.5 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is February (6.6 days).
Average snowfall in May
Vandalia, OH
- Average snowfall in May: 0"
The month with the highest snowfall is January (1.34").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Vandalia, OH
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Vandalia, OH
- 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 24min).
- Average sunshine in May: 8h and 54min
The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in May
Vandalia, OH
- Average sunshine days in May: 11 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (11 days).
Average UV index in May
Vandalia, OH
- Average UV index in May: 5
The months with the highest UV index are June 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
Vandalia, OH
- Average cloud cover in May: 40
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in May
Vandalia, OH
- 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).
