Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
As April transitions into May, a change in temperatures is observed, with average highs moving from a pleasant 69.4°F (20.8°C) to a warm 78.6°F (25.9°C). Throughout the May nights, McIllwain encounters a low-temperature of 59°F (15°C).Humidity
In McIllwain, Tennessee, the average relative humidity in May is 78%.Rainfall
In McIllwain, in May, it is raining for 12.5 days, with typically 1.14" (29mm) of accumulated precipitation. Throughout the year, there are 115.4 rainfall days, and 12.32" (313mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall in McIllwain.Daylight
In McIllwain, the average length of the day in May is 14h and 5min.On the first day of May in McIllwain, sunrise is at 5:58 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 8:02 pm CDT.
Sunshine
In McIllwain, the average sunshine in May is 9.2h.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 threat to health from exposure to the Sun's UV radiation for average individuals.Note: In May, a daily maximum UV index of 6 leads to the following instructions:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Frequently asked questions
What is the temperature in May in McIllwain?
What is the average humidity in May in McIllwain?
How much does it rain in McIllwain in May?
When it does not snow in McIllwain?
How many hours of daylight does McIllwain have in May?
What time are sunrise and sunset in May in McIllwain?
How long on average sun shines in May in McIllwain?
What is the month with the highest UV index in McIllwain?
What is the UV index intensity in May in McIllwain?
Average temperature in May
McIllwain, TN
- Average high temperature in May: 78.6°F
The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is January (45°F).
- Average low temperature in May: 59°F
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (30.7°F).
Average pressure in May
McIllwain, TN
- Average pressure in May: 29.99"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in May
McIllwain, TN
- Average wind speed in May: 6.4mph
The windiest months (with the highest average wind speed) are January, February and April (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity in May
McIllwain, TN
- Average humidity in May: 78%
The months with the highest relative humidity are March and December (79%).
The month with the lowest relative humidity is October (73%).
Average rainfall in May
McIllwain, TN
- Average rainfall in May: 1.14"
The wettest month (with the highest rainfall) is July (1.5").
The driest month (with the least rainfall) is September (0.35").
Average rainfall days in May
McIllwain, TN
- Average rainfall days in May: 12.5 days
The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is November (6.1 days).
Average snowfall in May
McIllwain, TN
- Average snowfall in May: 0"
The month with the highest snowfall is March (0.28").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
McIllwain, TN
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (1.9 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
McIllwain, TN
- Average daylight in May: 14h and 1min
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 1min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in May
McIllwain, TN
- Average sunshine days in May: 16.1 days
The month with the most sunshine days is November (22.3 days).
The month with the least sunshine days is July (15.7 days).
Average UV index in May
McIllwain, TN
- Average UV index in May: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in May
McIllwain, TN
- Average cloud cover in May: 38
The months with the most cloud cover are February and December (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in May
McIllwain, TN
- Average visibility in May: 5mi
The months with the highest visibility are January, February, March, April, June, September, October, November and December (6mi).
The months with the lowest visibility are May, July and August (5mi).
McIllwain, Tennessee, USA
Weather forecast for your location
2. Allow the app to use your location