May weather forecastBethlehem, IN
May
Weather in May
May, the last month of the spring in Bethlehem, is a warm month, with an average temperature ranging between max 74.8°F (23.8°C) and min 56.1°F (13.4°C).Temperature
The beginning of May signals a rise in the average high-temperature, moving from a refreshing 64.9°F (18.3°C) in April to a warm 74.8°F (23.8°C). In Bethlehem, an average low-temperature of 56.1°F (13.4°C) is recorded during May nights.Humidity
The average relative humidity in May in Bethlehem is 79%.Rainfall
In May, the rain falls for 17.2 days. Throughout May, 2.32" (59mm) of precipitation is accumulated. In Bethlehem, during the entire year, the rain falls for 147.9 days and collects up to 23.98" (609mm) of precipitation.Snowfall
In Bethlehem, snow does not fall in May through September.Daylight
The average length of the day in May is 14h and 17min.On the first day of May in Bethlehem, sunrise is at 6:43 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 6:19 am and sunset at 8:59 pm EDT.
Sunshine
In May, the average sunshine is 9h.UV index
In May, the average daily maximum UV index in Bethlehem is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index, 5 in May, converts into the following recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Bethlehem, IN
- Average high temperature in May: 74.8°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (38.3°F).
- Average low temperature in May: 56.1°F
The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (25.3°F).
Average pressure in May
Bethlehem, IN
- Average pressure in May: 29.98"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in May
Bethlehem, IN
- Average wind speed in May: 6.5mph
The windiest month (with the highest average wind speed) is January (8.4mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).
Average humidity in May
Bethlehem, IN
- Average humidity in May: 79%
The months with the highest relative humidity are February and December (81%).
The months with the lowest relative humidity are August, September and October (75%).
Average rainfall in May
Bethlehem, IN
- Average rainfall in May: 2.32"
The wettest month (with the highest rainfall) is April (2.64").
The driest month (with the least rainfall) is September (1.3").
Average rainfall days in May
Bethlehem, IN
- Average rainfall days in May: 17.2 days
The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in May
Bethlehem, IN
- Average snowfall in May: 0"
The month with the highest snowfall is March (1.54").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Bethlehem, IN
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (7.2 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
Bethlehem, IN
- Average daylight in May: 14h and 18min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in May: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in May
Bethlehem, IN
- Average sunshine days in May: 11.9 days
The month with the most sunshine days is October (19.9 days).
The month with the least sunshine days is May (11.9 days).
Average UV index in May
Bethlehem, IN
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Bethlehem, IN
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in May
Bethlehem, IN
- Average visibility in May: 5mi
The months with the highest visibility are March, April, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, May and July (5mi).





