May weather forecastSignal Hills, TN
May
Weather in May
The last month of the spring, May, is a warm month in Signal Hills, Tennessee, with an average temperature ranging between min 56.8°F (13.8°C) and max 77.9°F (25.5°C).Temperature
Entering May, Signal Hills notices a subtle temperature elevation, with the average high-temperature advancing from April's agreeable 69.4°F (20.8°C) to a warm 77.9°F (25.5°C). Nighttime temperature lowers to an average of 56.8°F (13.8°C) in May.Humidity
The average relative humidity in May is 77%.Rainfall
In Signal Hills, in May, during 9.9 rainfall days, 0.83" (21mm) of precipitation is typically accumulated. In Signal Hills, during the entire year, the rain falls for 104.5 days and collects up to 10.98" (279mm) of precipitation.Snowfall
In Signal Hills, snow does not fall in April through November.Daylight
In Signal Hills, the average length of the day in May is 14h and 1min.On the first day of May, sunrise is at 6:49 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 8:49 pm EDT.
Sunshine
In Signal Hills, the average sunshine in May is 9.6h.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 hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 6 during May leads to these instructions:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Signal Hills, TN
- Average high temperature in May: 77.9°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (46°F).
- Average low temperature in May: 56.8°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).
Average pressure in May
Signal Hills, 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
Signal Hills, TN
- Average wind speed in May: 5mph
The windiest month (with the highest average wind speed) is February (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in May
Signal Hills, 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, October and November (75%).
Average rainfall in May
Signal Hills, TN
- Average rainfall in May: 0.83"
The wettest months (with the highest rainfall) are February and December (1.18").
The driest month (with the least rainfall) is September (0.43").
Average rainfall days in May
Signal Hills, TN
- Average rainfall days in May: 9.9 days
The month with the highest number of rainy days is July (11.7 days).
The month with the least rainy days is October (6.1 days).
Average snowfall in May
Signal Hills, TN
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.31").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in May
Signal Hills, TN
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Signal Hills, 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 36min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in May
Signal Hills, TN
- Average sunshine days in May: 18.9 days
The month with the most sunshine days is October (23.6 days).
The month with the least sunshine days is July (16.8 days).
Average UV index in May
Signal Hills, 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, February and December (UV index 2).
Average cloud cover in May
Signal Hills, TN
- Average cloud cover in May: 36
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in May
Signal Hills, 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).





