May weather forecastBethlehem, NH
May
Weather in May
May, the last month of the spring in Bethlehem, is a refreshing month, with temperature in the range of an average high of 62.6°F (17°C) and an average low of 41.9°F (5.5°C).Temperature
The shift from April to May is characterized by a clear increase in the average high-temperature, escalating from a frosty 46.9°F (8.3°C) to an enjoyable 62.6°F (17°C). Throughout May, Bethlehem's nights cool down to an average of 41.9°F (5.5°C).Humidity
The least humid month is May, with an average relative humidity of 76%.Rainfall
In Bethlehem, in May, it is raining for 17.4 days, with typically 2.68" (68mm) of accumulated precipitation. Throughout the year, there are 164.3 rainfall days, and 29.45" (748mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.9 snowfall days, in May, Bethlehem aggregates 1.22" (31mm) of snow. Throughout the year, there are 99.6 snowfall days, and 57.68" (1465mm) of snow is accumulated.Daylight
In May, the average length of the day in Bethlehem, New Hampshire, is 14h and 48min.On the first day of May, sunrise is at 5:36 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 5:05 am and sunset at 8:23 pm EDT.
Sunshine
In Bethlehem, the average sunshine in May is 8h.UV index
The average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The average daily UV index of 4 in May transforms into the following instructions:
Exercise prevention - Warding off sunburn is urged. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Bethlehem, NH
- Average high temperature in May: 62.6°F
The warmest month (with the highest average high temperature) is July (76.3°F).
The month with the lowest average high temperature is January (22.5°F).
- Average low temperature in May: 41.9°F
The month with the highest average low temperature is July (54.1°F).
The coldest month (with the lowest average low temperature) is January (9.3°F).
Average pressure in May
Bethlehem, NH
- Average pressure in May: 29.98"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Bethlehem, NH
- Average wind speed in May: 5.8mph
The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in May
Bethlehem, NH
- Average humidity in May: 76%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is May (76%).
Average rainfall in May
Bethlehem, NH
- Average rainfall in May: 2.68"
The wettest month (with the highest rainfall) is October (2.91").
The driest month (with the least rainfall) is September (2.09").
Average rainfall days in May
Bethlehem, NH
- Average rainfall days in May: 17.4 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is February (6.7 days).
Average snowfall in May
Bethlehem, NH
- Average snowfall in May: 1.22"
The month with the highest snowfall is February (13.58").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Bethlehem, NH
- Average snowfall days in May: 0.9 days
The month with the highest number of snowfall days is January (21.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Bethlehem, NH
- Average daylight in May: 14h and 48min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in May: 8h and 0min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 0min).
Average sunshine days in May
Bethlehem, NH
- Average sunshine days in May: 11.3 days
The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is February (5.9 days).
Average UV index in May
Bethlehem, NH
- Average UV index in May: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in May
Bethlehem, NH
- Average cloud cover in May: 50
The month with the most cloud cover is February (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 39).
Average visibility in May
Bethlehem, NH
- Average visibility in May: 5mi
The months with the highest visibility are April, May, June, July, August, October and November (5mi).
The months with the lowest visibility are January, February, March, September and December (4mi).
