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
The arrival of May introduces a minor uplift in high-temperatures, adjusting from an agreeable 72.1°F (22.3°C) in April to a warm 80.1°F (26.7°C). The nighttime temperature dips to a mild 58.6°F (14.8°C) on average during May.Humidity
In Rock Run, the average relative humidity in May is 75%.Rainfall
In Rock Run, Alabama, in May, it is raining for 13.8 days, with typically 2.01" (51mm) of accumulated precipitation. In Rock Run, during the entire year, the rain falls for 154.5 days and collects up to 25.04" (636mm) of precipitation.Snowfall
April through November are months without snowfall.Daylight
In May, the average length of the day is 13h and 56min.On the first day of the month, sunrise is at 5:51 am and sunset at 7:26 pm. On the last day of May, in Rock Run, sunrise is at 5:31 am and sunset at 7:47 pm CDT.
Sunshine
In May, the average sunshine is 10.1h.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 unprotected exposure to Sun's UV rays for average individuals.Note: A typical high UV index of 6 in May suggests the following recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
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?
What is the average length of the day in May?
When are sunrise and sunset in May?
How long on average sun shines in May?
What is the month with the highest UV index?
What is the UV index reading in May?
Average temperature in May
Rock Run, AL
- Average high temperature in May: 80.1°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (49.8°F).
- Average low temperature in May: 58.6°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (33.8°F).
Average pressure in May
Rock Run, AL
- Average pressure in May: 30.02"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
Rock Run, AL
- Average wind speed in May: 5.3mph
The windiest month (with the highest average wind speed) is February (7.2mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in May
Rock Run, AL
- Average humidity in May: 75%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (73%).
Average rainfall in May
Rock Run, AL
- Average rainfall in May: 2.01"
The wettest month (with the highest rainfall) is August (2.56").
The driest month (with the least rainfall) is October (1.38").
Average rainfall days in May
Rock Run, AL
- Average rainfall days in May: 13.8 days
The month with the highest number of rainy days is July (20.1 days).
The month with the least rainy days is November (7.9 days).
Average snowfall in May
Rock Run, AL
- Average snowfall in May: 0"
The month with the highest snowfall is January (0.55").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in May
Rock Run, AL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (1.5 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
Rock Run, AL
- Average daylight in May: 13h and 5min
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: 10h and 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in May
Rock Run, AL
- Average sunshine days in May: 14.8 days
The months with the most sunshine days are October and November (20.1 days).
The month with the least sunshine days is July (8.9 days).
Average UV index in May
Rock Run, AL
- 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
Rock Run, AL
- Average cloud cover in May: 33
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in May
Rock Run, AL
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
Rock Run, Alabama, USA
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