May weather forecastVandalia, IN
May
Weather in May
The last month of the spring, May, is an agreeable month in Vandalia, Indiana, with an average temperature varying between 72.5°F (22.5°C) and 55.4°F (13°C).Temperature
With the onset of May, Vandalia's average high-temperature sees a rise, moving from April's comfortable 62.6°F (17°C) to an agreeable 72.5°F (22.5°C). An average low-temperature of 55.4°F (13°C) marks the nights throughout May.Humidity
The months with the highest humidity are May and July, with an average relative humidity of 82%.Rainfall
In Vandalia, in May, it is raining for 18.4 days, with typically 3.07" (78mm) of accumulated precipitation. Throughout the year, in Vandalia, there are 154.9 rainfall days, and 26.18" (665mm) of precipitation is accumulated.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 21min.On the first day of May, sunrise is at 6:47 am and sunset at 8:41 pm. On the last day of the month, sunrise is at 6:22 am and sunset at 9:07 pm EDT.
Sunshine
In Vandalia, the average sunshine in May is 8.7h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In May, the maximum UV index of 6 suggests these recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Vandalia, IN
- Average high temperature in May: 72.5°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (34.9°F).
- Average low temperature in May: 55.4°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in May
Vandalia, IN
- Average pressure in May: 29.97"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Vandalia, IN
- Average wind speed in May: 7.1mph
The windiest month (with the highest average wind speed) is February (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in May
Vandalia, IN
- Average humidity in May: 82%
The months with the highest relative humidity are May and July (82%).
The month with the lowest relative humidity is October (74%).
Average rainfall in May
Vandalia, IN
- Average rainfall in May: 3.07"
The wettest month (with the highest rainfall) is April (3.11").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in May
Vandalia, IN
- Average rainfall days in May: 18.4 days
The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in May
Vandalia, IN
- Average snowfall in May: 0"
The month with the highest snowfall is January (2.17").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Vandalia, IN
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Vandalia, IN
- 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 months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The months with the least sunshine are January and December (Average sunshine: 4h and 18min).
Average sunshine days in May
Vandalia, IN
- Average sunshine days in May: 9.8 days
The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is May (9.8 days).
Average UV index in May
Vandalia, IN
- 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 and December (UV index 2).
Average cloud cover in May
Vandalia, IN
- Average cloud cover in May: 42
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in May
Vandalia, IN
- Average visibility in May: 5mi
The months with the highest visibility are January, February, March, April, June, September, October, November and December (6mi).
The months with the lowest visibility are May, July and August (5mi).
