May weather forecastChattanooga, TN
May
Weather in May
In Chattanooga, May is characterized by welcoming weather with an increase in temperature, promoting outdoor activities. The city basks under the sun for a longer time, alluding to the nearing summer season. With the highest temperature averaging at 78.1°F (25.6°C) and the lowest at 57.2°F (14°C), the climate leans more towards the warmer side compared to the other months of the year, setting the catalogue for June's higher temperatures.Temperature
Chattanooga's transition into May sees a mild rise in the average high-temperature, edging from a pleasant 69.4°F (20.8°C) in April to a moderately hot 78.1°F (25.6°C). In Chattanooga, the average temperature during the nights of May drops to a mild 57.2°F (14°C).Humidity
The average relative humidity in May is 77%.Rainfall
In Chattanooga, in May, during 15.8 rainfall days, 3.43" (87mm) of precipitation is typically accumulated. Throughout the year, there are 174.4 rainfall days, and 41.14" (1045mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In Chattanooga, the average length of the day in May is 14h and 1min.On the first day of the month, sunrise is at 6:49 am and sunset at 8:27 pm. On the last day of May, sunrise is at 6:28 am and sunset at 8:49 pm EDT.
Sunshine
In Chattanooga, the average sunshine in May is 9.4h.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 average person.Note: A daily high UV index of 6 in May leads to these guidelines:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Chattanooga, TN
- Average high temperature in May: 78.1°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (46°F).
- Average low temperature in May: 57.2°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (30.7°F).
Average pressure in May
Chattanooga, TN
- Average pressure in May: 30.02"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in May
Chattanooga, TN
- Average wind speed in May: 5mph
The windiest month (with the highest average wind speed) is February (6.4mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in May
Chattanooga, TN
- Average humidity in May: 77%
The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are June, July, August, October and November (75%).
Average rainfall in May
Chattanooga, TN
- Average rainfall in May: 3.43"
The wettest month (with the highest rainfall) is December (4.37").
The driest month (with the least rainfall) is September (2.56").
Average rainfall days in May
Chattanooga, TN
- Average rainfall days in May: 15.8 days
The month with the highest number of rainy days is July (19.6 days).
The month with the least rainy days is November (9.8 days).
Average snowfall in May
Chattanooga, TN
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.85").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Chattanooga, TN
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (4.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Chattanooga, TN
- Average daylight in May: 14h and 0min
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 24min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in May
Chattanooga, TN
- Average sunshine days in May: 13.3 days
The month with the most sunshine days is October (18.9 days).
The month with the least sunshine days is July (9.4 days).
Average UV index in May
Chattanooga, 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
Chattanooga, TN
- Average cloud cover in May: 37
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 31).
Average visibility in May
Chattanooga, TN
- Average visibility in May: 5mi
The months with the highest visibility are June, October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, July, August, September and December (5mi).
