May weather forecastHarbor Isles, TN
May
Weather in May
The last month of the spring, May, is a moderately hot month in Harbor Isles, Tennessee, with temperature in the range of an average low of 59°F (15°C) and an average high of 78.3°F (25.7°C).Temperature
The average high-temperature mildly increases in May, edging from a pleasant 69.8°F (21°C) in April to a moderately hot 78.3°F (25.7°C). In the month of May, Harbor Isles witnesses a consistent average low-temperature of 59°F (15°C).Humidity
The average relative humidity in May is 76%.Rainfall
In May, the rain falls for 14.9 days. Throughout May, 1.85" (47mm) of precipitation is accumulated. In Harbor Isles, during the entire year, the rain falls for 150.1 days and collects up to 24.41" (620mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In May, the average length of the day is 14h and 5min.On the first day of the month, sunrise is at 5:52 am and sunset at 7:33 pm. On the last day of May, sunrise is at 5:30 am and sunset at 7:56 pm CDT.
Sunshine
The average sunshine in May is 9.3h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.Note: In May, the average maximum UV index of 6 translates into the following recommendations:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Harbor Isles, TN
- Average high temperature in May: 78.3°F
The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (45.1°F).
- Average low temperature in May: 59°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (30.7°F).
Average pressure in May
Harbor Isles, TN
- Average pressure in May: 30"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
Harbor Isles, TN
- Average wind speed in May: 6.1mph
The windiest month (with the highest average wind speed) is February (8mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in May
Harbor Isles, TN
- Average humidity in May: 76%
The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are June, August and October (73%).
Average rainfall in May
Harbor Isles, TN
- Average rainfall in May: 1.85"
The wettest month (with the highest rainfall) is July (3.19").
The driest month (with the least rainfall) is November (1.38").
Average rainfall days in May
Harbor Isles, TN
- Average rainfall days in May: 14.9 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is November (7.7 days).
Average snowfall in May
Harbor Isles, TN
- Average snowfall in May: 0"
The month with the highest snowfall is January (0.71").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Harbor Isles, TN
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (3.5 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
Harbor Isles, TN
- Average daylight in May: 14h and 6min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in May: 9h and 18min
The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in May
Harbor Isles, TN
- Average sunshine days in May: 14 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is July (11.8 days).
Average UV index in May
Harbor Isles, 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 February and December (UV index 2).
Average cloud cover in May
Harbor Isles, 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 30).
Average visibility in May
Harbor Isles, TN
- 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).
