May weather forecastSalem, AL
May
Weather in May
The last month of the spring, May, is another warm month in Salem, Alabama, with temperature in the range of an average high of 83.3°F (28.5°C) and an average low of 61.7°F (16.5°C).Temperature
Salem's weather in May presents a minor rise in the average high-temperature, moving from a moderately hot 75.4°F (24.1°C) in April to a still warm 83.3°F (28.5°C). Salem anticipates a considerable daily temperature fluctuation in May, with low temperatures averaging an enjoyable 61.7°F (16.5°C).Heat index
The heat index in May is estimated at a hot 89.6°F (32°C). If activity and exposure persist, they could induce fatigue, leading to possible heat cramps.One should be cognizant that the heat index values are tailored for shaded spots and mild winds. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', ties air temperature with relative humidity to produce the perceived temperature sensation. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
Humidity
In May, the average relative humidity is 71%.Rainfall
In Salem, in May, during 14.7 rainfall days, 2.8" (71mm) of precipitation is typically accumulated. In Salem, during the entire year, the rain falls for 173.9 days and collects up to 37.64" (956mm) of precipitation.Snowfall
In Salem, snow does not fall in April through November.Daylight
The average length of the day in May is 13h and 50min.On the first day of the month, sunrise is at 5:53 am and sunset at 7:22 pm. On the last day of May, sunrise is at 5:34 am and sunset at 7:43 pm CDT.
Sunshine
The average sunshine in May is 10.3h.UV index
The average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 6 during May translates into these guidelines:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Salem, AL
- Average high temperature in May: 83.3°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (54.1°F).
- Average low temperature in May: 61.7°F
The months with the highest average low temperature are July and August (71.2°F).
The coldest month (with the lowest average low temperature) is January (37.4°F).
Average pressure in May
Salem, AL
- Average pressure in May: 30.02"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in May
Salem, AL
- Average wind speed in May: 5.8mph
The windiest month (with the highest average wind speed) is January (7.7mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity in May
Salem, AL
- Average humidity in May: 71%
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is October (70%).
Average rainfall in May
Salem, AL
- Average rainfall in May: 2.8"
The wettest months (with the highest rainfall) are August and December (4.06").
The driest month (with the least rainfall) is September (2.01").
Average rainfall days in May
Salem, AL
- Average rainfall days in May: 14.7 days
The month with the highest number of rainy days is July (22.5 days).
The month with the least rainy days is November (7.8 days).
Average snowfall in May
Salem, AL
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.31").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in May
Salem, AL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in May /
Average sunshine in May
Salem, AL
- Average daylight in May: 13h and 48min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in May: 10h and 18min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).
Average sunshine days in May
Salem, AL
- Average sunshine days in May: 14.8 days
The months with the most sunshine days are October and November (20.5 days).
The month with the least sunshine days is July (6.5 days).
Average UV index in May
Salem, AL
- Average UV index in May: 6
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in May
Salem, AL
- Average cloud cover in May: 31
The month with the most cloud cover is December (Cloud cover 45).
The month with the least cloud cover is October (Cloud cover 30).
Average visibility in May
Salem, 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).





