May weather forecastSalem, NH
May
Weather in May
Salem in May experiences a spring climate characterized by warmer temperatures and a further reduction in snowfall to just 0.16" (4mm). With the decline in winter’s influence, spring flowers bloom, creating scenic beauty throughout the city. Due to the increased sunlight and warmth, outdoor activities become a favorite pastime for many citizens. Although there is rainfall, it seldom deters people from venturing outside to enjoy the attractive weather.Temperature
Noticing a change, the average high-temperature during May moves from April's cool 54.7°F (12.6°C) to a comfortable 66°F (18.9°C). Throughout May, the nighttime temperature averages to a chilly 48.7°F (9.3°C).Humidity
In Salem, the average relative humidity in May is 73%.Rainfall
In May, the rain falls for 15.9 days. Throughout May, 1.97" (50mm) of precipitation is accumulated. In Salem, during the entire year, the rain falls for 144 days and collects up to 26.97" (685mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Salem aggregates 0.16" (4mm) of snow. Throughout the year, in Salem, New Hampshire, there are 31.9 snowfall days, and 20.94" (532mm) of snow is accumulated.Ocean temperature
In May, the average ocean temperature is 48°F (8.9°C).Note: Being in 48°F (8.9°C) waters at 55.4°F (13°C) is discomforting, but anything below 50°F (10°C) can jeopardize breathing and induce cold shock, factoring in physical endurance.
Daylight
In May, the average length of the day is 14h and 40min.On the first day of the month, sunrise is at 5:37 am and sunset at 7:45 pm. On the last day of May, sunrise is at 5:09 am and sunset at 8:16 pm EDT.
Sunshine
The average sunshine in May is 8.6h.UV index
In May, the average daily maximum UV index in Salem is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 5 during May leads to these advisories:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. During bright days, sunglasses that offer UVA and UVB defense are recommended. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Salem, NH
- Average high temperature in May: 66°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (32.2°F).
- Average low temperature in May: 48.7°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).
Average pressure in May
Salem, NH
- Average pressure in May: 30"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Salem, NH
- Average wind speed in May: 6.8mph
The windiest month (with the highest average wind speed) is January (9.2mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in May
Salem, NH
- Average humidity in May: 73%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (71%).
Average rainfall in May
Salem, NH
- Average rainfall in May: 1.97"
The wettest month (with the highest rainfall) is December (2.87").
The driest month (with the least rainfall) is September (1.3").
Average rainfall days in May
Salem, NH
- Average rainfall days in May: 15.9 days
The month with the highest number of rainy days is May (15.9 days).
The months with the least rainy days are January and February (7.6 days).
Average snowfall in May
Salem, NH
- Average snowfall in May: 0.16"
The month with the highest snowfall is February (5.87").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Salem, NH
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (8.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in May
Salem, NH
- Average sea temperature in May: 48°F
The best month for swimming (with the highest average sea temperature) is August (66.4°F).
The coldest month (with the lowest average sea temperature) is March (38.8°F).
Average daylight in May /
Average sunshine in May
Salem, NH
- Average daylight in May: 14h and 42min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in May: 8h and 36min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in May
Salem, NH
- Average sunshine days in May: 13.5 days
The month with the most sunshine days is September (17.9 days).
The month with the least sunshine days is May (13.5 days).
Average UV index in May
Salem, NH
- 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, March, November and December (UV index 2).
Average cloud cover in May
Salem, NH
- Average cloud cover in May: 45
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in May
Salem, NH
- Average visibility in May: 6mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is February (5mi).
