May weather forecastShelbyville, TN
May
Weather in May
May is a month of continued rejuvenation in Shelbyville with the advent of summer. The increase in daylight hours contributes to a brighter, warmer, and generally more pleasant environment. Furthermore, the humidity in the air maintains a high level but is accompanied by a welcome breeze. The mercury can touch up to 77.5°F (25.3°C) at its peak in May. The vibrant weather coupled with extended periods of daylight makes it perfect for residents to bask under the sun.Temperature
A gentle upsurge in temperatures occurs as April gives way to May, with average highs shifting from an agreeable 68.9°F (20.5°C) to a moderately hot 77.5°F (25.3°C). Nighttime temperatures in May average to a mild 58.1°F (14.5°C).Humidity
In May, the average relative humidity is 78%.Rainfall
In Shelbyville, during May, the rain falls for 15.9 days and regularly aggregates up to 2.91" (74mm) of precipitation. Throughout the year, there are 167.2 rainfall days, and 38.78" (985mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In Shelbyville, the average length of the day in May is 14h and 3min.On the first day of the month, sunrise is at 5:53 am and sunset at 7:32 pm. On the last day of May, sunrise is at 5:31 am and sunset at 7:55 pm CDT.
Sunshine
The average sunshine in May is 9.3h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In May, a regular UV index of 6 translates into these guidelines:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Shelbyville, TN
- Average high temperature in May: 77.5°F
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (45.5°F).
- Average low temperature in May: 58.1°F
The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (31.3°F).
Average pressure in May
Shelbyville, TN
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in May
Shelbyville, TN
- Average wind speed in May: 6.3mph
The windiest month (with the highest average wind speed) is February (8.5mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).
Average humidity in May
Shelbyville, TN
- Average humidity in May: 78%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (74%).
Average rainfall in May
Shelbyville, TN
- Average rainfall in May: 2.91"
The wettest month (with the highest rainfall) is February (4.33").
The driest month (with the least rainfall) is September (2.09").
Average rainfall days in May
Shelbyville, TN
- Average rainfall days in May: 15.9 days
The month with the highest number of rainy days is July (19.5 days).
The month with the least rainy days is November (8.9 days).
Average snowfall in May
Shelbyville, TN
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.02").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Shelbyville, TN
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (3.1 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
Shelbyville, TN
- Average daylight in May: 14h and 6min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in May: 9h and 18min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in May
Shelbyville, TN
- Average sunshine days in May: 13.5 days
The month with the most sunshine days is October (19.9 days).
The month with the least sunshine days is July (10.1 days).
Average UV index in May
Shelbyville, TN
- 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 and December (UV index 2).
Average cloud cover in May
Shelbyville, TN
- Average cloud cover in May: 37
The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 31).
Average visibility in May
Shelbyville, TN
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
