May weather forecastLancaster, TN
May
Weather in May
May, the last month of the spring in Lancaster, is a moderately hot month, with an average temperature varying between 57.2°F (14°C) and 77°F (25°C).Temperature
With the onset of May, Lancaster's average high-temperature sees a modest rise, moving from April's agreeable 68.5°F (20.3°C) to a moderately hot 77°F (25°C). In May, Lancaster records an average nighttime temperature of 57.2°F (14°C).Humidity
In Lancaster, the average relative humidity in May is 79%.Rainfall
In Lancaster, during May, the rain falls for 16.8 days and regularly aggregates up to 3.74" (95mm) of precipitation. Throughout the year, there are 177.2 rainfall days, and 40.94" (1040mm) of precipitation is accumulated.Snowfall
In Lancaster, snow does not fall in May through October.Daylight
In May, the average length of the day is 14h and 6min.On the first day of May, sunrise is at 5:49 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 5:27 am and sunset at 7:54 pm CDT.
Sunshine
In Lancaster, the average sunshine in May is 9.4h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the average person.Note: In May, the maximum UV index of 6 suggests this advice:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Lancaster, TN
- Average high temperature in May: 77°F
The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (43.7°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 (29.8°F).
Average pressure in May
Lancaster, 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
Lancaster, TN
- Average wind speed in May: 5.7mph
The windiest month (with the highest average wind speed) is February (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in May
Lancaster, TN
- Average humidity in May: 79%
The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are October and November (76%).
Average rainfall in May
Lancaster, TN
- Average rainfall in May: 3.74"
The wettest months (with the highest rainfall) are February and July (4.17").
The driest month (with the least rainfall) is September (2.32").
Average rainfall days in May
Lancaster, TN
- Average rainfall days in May: 16.8 days
The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is November (10.5 days).
Average snowfall in May
Lancaster, TN
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.34").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Lancaster, TN
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (4.5 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
Lancaster, 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 24min
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
Lancaster, TN
- Average sunshine days in May: 12.5 days
The months with the most sunshine days are October and November (18 days).
The month with the least sunshine days is July (10 days).
Average UV index in May
Lancaster, 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
Lancaster, TN
- Average cloud cover in May: 38
The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in May
Lancaster, TN
- Average visibility in May: 5mi
The months with the highest visibility are February, April, June, October, November and December (6mi).
The months with the lowest visibility are January, March, May, July, August and September (5mi).
