May weather forecastHaverhill, NH
May
Weather in May
The last month of the spring, May, is a refreshing month in Haverhill, New Hampshire, with an average temperature varying between 43.5°F (6.4°C) and 64.4°F (18°C).Temperature
The changeover to May signals a significant increase in the average high-temperature, rising from a frosty 49.6°F (9.8°C) in April to an enjoyable 64.4°F (18°C). During the month of May, an average low-temperature of 43.5°F (6.4°C) is recorded.Humidity
The months with the lowest humidity are April and May, with an average relative humidity of 76%.Rainfall
In Haverhill, during May, the rain falls for 17.3 days and regularly aggregates up to 2.56" (65mm) of precipitation. In Haverhill, during the entire year, the rain falls for 158.3 days and collects up to 28.78" (731mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.7 snowfall days, in May, Haverhill aggregates 0.43" (11mm) of snow. Throughout the year, there are 77.6 snowfall days, and 45.12" (1146mm) of snow is accumulated.Daylight
In May, the average length of the day is 14h and 46min.On the first day of the month, sunrise is at 5:38 am and sunset at 7:52 pm. On the last day of May, sunrise is at 5:08 am and sunset at 8:23 pm EDT.
Sunshine
The average sunshine in May is 8.1h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 5 during May translates into the following guidance:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Haverhill, NH
- Average high temperature in May: 64.4°F
The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is January (23.9°F).
- Average low temperature in May: 43.5°F
The month with the highest average low temperature is July (55.9°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).
Average pressure in May
Haverhill, NH
- Average pressure in May: 29.98"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Haverhill, NH
- Average wind speed in May: 6.2mph
The windiest month (with the highest average wind speed) is April (7.2mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in May
Haverhill, NH
- Average humidity in May: 76%
The months with the highest relative humidity are January and February (87%).
The months with the lowest relative humidity are April and May (76%).
Average rainfall in May
Haverhill, NH
- Average rainfall in May: 2.56"
The wettest month (with the highest rainfall) is October (3.11").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in May
Haverhill, NH
- Average rainfall days in May: 17.3 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is February (7.2 days).
Average snowfall in May
Haverhill, NH
- Average snowfall in May: 0.43"
The month with the highest snowfall is February (12.28").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Haverhill, NH
- Average snowfall days in May: 0.7 days
The month with the highest number of snowfall days is January (16.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Haverhill, NH
- Average daylight in May: 14h and 48min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in May: 8h and 6min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 3h and 30min).
Average sunshine days in May
Haverhill, NH
- Average sunshine days in May: 11.3 days
The month with the most sunshine days is September (15.4 days).
The month with the least sunshine days is February (9.3 days).
Average UV index in May
Haverhill, NH
- Average UV index in May: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Haverhill, NH
- Average cloud cover in May: 49
The month with the most cloud cover is February (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in May
Haverhill, NH
- Average visibility in May: 5mi
The months with the highest visibility are April, May, June, July, August, October, November and December (5mi).
The months with the lowest visibility are January, February, March and September (4mi).
