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
May in Decatur comes with a subtle rise, with the average high-temperature adjusting from an agreeable 70.5°F (21.4°C) in April to a warm 78.8°F (26°C). The low-temperature average for Decatur during May stands at a refreshing 59.9°F (15.5°C).Humidity
The average relative humidity in May in Decatur, Alabama, is 76%.Rainfall
In May, in Decatur, the rain falls for 16.9 days. Throughout May, 3.5" (89mm) of precipitation is accumulated. In Decatur, during the entire year, the rain falls for 177.6 days and collects up to 43.11" (1095mm) of precipitation.Snowfall
In Decatur, snow does not fall in April through October.Daylight
The average length of the day in May in Decatur is 13h and 59min.On the first day of May, sunrise is at 5:56 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 5:36 am and sunset at 7:55 pm CDT.
Sunshine
The average sunshine in May is 9.7h.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 exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 6 in May converts into the following recommendations:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Frequently asked questions
What are May temperatures in Decatur?
What is the average humidity in May in Decatur?
How much does it rain in Decatur in May?
When it does not snow in Decatur?
How many hours of daylight does Decatur have in May?
When are sunrise and sunset in May in Decatur?
How long on average sun shines in May in Decatur?
What is the month with the highest UV index in Decatur?
What is the UV index intensity in May in Decatur?
Average temperature in May
Decatur, AL
- Average high temperature in May: 78.8°F
The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is January (47.5°F).
- Average low temperature in May: 59.9°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 (33.3°F).
Average pressure in May
Decatur, AL
- Average pressure in May: 30.01"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
Decatur, AL
- Average wind speed in May: 6.4mph
The windiest month (with the highest average wind speed) is February (8.6mph).
The calmest month (with the lowest average wind speed) is July (4.8mph).
Average humidity in May
Decatur, AL
- Average humidity in May: 76%
The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is October (72%).
Average rainfall in May
Decatur, AL
- Average rainfall in May: 3.5"
The wettest month (with the highest rainfall) is December (4.45").
The driest months (with the least rainfall) are September and November (2.48").
Average rainfall days in May
Decatur, AL
- Average rainfall days in May: 16.9 days
The month with the highest number of rainy days is July (20 days).
The month with the least rainy days is November (10.4 days).
Average snowfall in May
Decatur, AL
- Average snowfall in May: 0"
The months with the highest snowfall are January and February (0.55").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Decatur, AL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Decatur, AL
- Average daylight in May: 14h and 0min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in May: 9h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in May
Decatur, AL
- Average sunshine days in May: 12.6 days
The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is July (8.8 days).
Average UV index in May
Decatur, AL
- 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 and December (UV index 2).
Average cloud cover in May
Decatur, AL
- Average cloud cover in May: 35
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in May
Decatur, AL
- 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).
Decatur, Alabama, USA
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