May weather forecastJaffrey, NH
May
Weather in May
The last month of the spring, May, is a comfortable month in Jaffrey, New Hampshire, with an average temperature varying between 65.7°F (18.7°C) and 45.9°F (7.7°C).Temperature
May's arrival signals a temperature shift, moving from a fresh 52.9°F (11.6°C) in April to a comfortable 65.7°F (18.7°C). An average nighttime temperature of 45.9°F (7.7°C) is observed during May.Humidity
The average relative humidity in May in Jaffrey is 76%.Rainfall
In Jaffrey, in May, it is raining for 15.8 days, with typically 2.52" (64mm) of accumulated precipitation. In Jaffrey, during the entire year, the rain falls for 149.5 days and collects up to 32.13" (816mm) of precipitation.Snowfall
Months with snowfall in Jaffrey are January through May, October through December. May is the last month it regularly snows. During 0.3 snowfall days, in May, Jaffrey aggregates 0.35" (9mm) of snow. In Jaffrey, during the entire year, snow falls for 54.2 days and aggregates up to 38.27" (972mm) of snow.Daylight
In Jaffrey, the average length of the day in May is 14h and 40min.On the first day of May in Jaffrey, New Hampshire, sunrise is at 5:41 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 5:12 am and sunset at 8:19 pm EDT.
Sunshine
In May, the average sunshine in Jaffrey is 8h.UV index
In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 5 during May translates into the following directions:
Exercise prevention - Precautions against solar damage are endorsed. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Consider carefully! The reflective quality of snow can almost 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
Jaffrey, NH
- Average high temperature in May: 65.7°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (28°F).
- Average low temperature in May: 45.9°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure in May
Jaffrey, NH
- Average pressure in May: 30"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Jaffrey, NH
- Average wind speed in May: 6.6mph
The windiest month (with the highest average wind speed) is January (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in May
Jaffrey, NH
- Average humidity in May: 76%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is April (74%).
Average rainfall in May
Jaffrey, NH
- Average rainfall in May: 2.52"
The wettest month (with the highest rainfall) is October (3.35").
The driest month (with the least rainfall) is September (2.17").
Average rainfall days in May
Jaffrey, NH
- Average rainfall days in May: 15.8 days
The months with the highest number of rainy days are May, June and August (15.8 days).
The month with the least rainy days is February (7.2 days).
Average snowfall in May
Jaffrey, NH
- Average snowfall in May: 0.35"
The month with the highest snowfall is February (9.41").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Jaffrey, NH
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is February (12.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Jaffrey, 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 0min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).
Average sunshine days in May
Jaffrey, NH
- Average sunshine days in May: 13.2 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is March (11.7 days).
Average UV index in May
Jaffrey, NH
- Average UV index in May: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in May
Jaffrey, NH
- Average cloud cover in May: 50
The months with the most cloud cover are February and March (Cloud cover 54).
The months with the least cloud cover are July and August (Cloud cover 38).
Average visibility in May
Jaffrey, NH
- Average visibility in May: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).





