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
In Allen, the average high-temperature in May slightly rises, from a pleasant 69.1°F (20.6°C) in April, to a moderately hot 77.7°F (25.4°C). In the month of May, the temperature generally rests at an average low of 56.5°F (13.6°C).Humidity
In Allen, the average relative humidity in May is 77%.Rainfall
In May, the rain falls for 17.2 days. Throughout May, 3.03" (77mm) of precipitation is accumulated. In Allen, during the entire year, the rain falls for 171.8 days and collects up to 41.81" (1062mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in May is 14h and 3min.On the first day of May, sunrise is at 6:46 am and sunset at 8:26 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 8:48 pm EDT.
Sunshine
The average sunshine in May is 9.8h.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 unprotected exposure to Sun's UV rays for average individuals.Note: The daily high UV index of 6 in May translates into this advice:
Shun overexposure. Protection from sun ravages is indispensable. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. 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
What are May temperatures?
What is the average humidity in May?
How many days does it rain in May?
When it does not snow?
Does it snow in May?
How many hours of daylight does Allen have in May?
When is the sunrise / sunset in May in Allen?
How many hours of sunshine does Allen have in May?
What are the months with the highest UV index in Allen?
How high is the UV index in May?
Average temperature in May
Allen, TN
- Average high temperature in May: 77.7°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 (45.5°F).
- Average low temperature in May: 56.5°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in May
Allen, TN
- Average pressure in May: 30.02"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in May
Allen, TN
- Average wind speed in May: 5.2mph
The windiest months (with the highest average wind speed) are February, March and April (6.5mph).
The calmest months (with the lowest average wind speed) are July and August (3.9mph).
Average humidity in May
Allen, 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, August, October and November (75%).
Average rainfall in May
Allen, TN
- Average rainfall in May: 3.03"
The wettest months (with the highest rainfall) are July and December (4.29").
The driest month (with the least rainfall) is September (2.32").
Average rainfall days in May
Allen, TN
- Average rainfall days in May: 17.2 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is November (9.5 days).
Average snowfall in May
Allen, TN
- Average snowfall in May: 0"
The month with the highest snowfall is January (1.02").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Allen, TN
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (4.8 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
Allen, 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 5min
The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in May
Allen, TN
- Average sunshine days in May: 11.8 days
The month with the most sunshine days is October (18.6 days).
The month with the least sunshine days is July (10.2 days).
Average UV index in May
Allen, 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
Allen, TN
- Average cloud cover in May: 35
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in May
Allen, TN
- Average visibility in May: 6mi
The months with the highest visibility are February, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and March (5mi).
Allen, Tennessee, USA
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