Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
The transition from April to May brings a temperature rise, with average high-temperatures increasing from a fresh 52.9°F (11.6°C) to a refreshing 65.3°F (18.5°C). The average nighttime temperature lowers to a frosty 46°F (7.8°C) throughout May.Humidity
In May, the average relative humidity in Greenfield is 75%.Rainfall
In Greenfield, in May, it is raining for 13.5 days, with typically 1.14" (29mm) of accumulated precipitation. In Greenfield, during the entire year, the rain falls for 113.8 days and collects up to 12.44" (316mm) of precipitation.Snowfall
Months with snowfall in Greenfield are January through May, October through December. May is the last month it regularly snows in Greenfield. During 0.7 snowfall days, in May, Greenfield aggregates 0.28" (7mm) of snow. Throughout the year, in Greenfield, there are 45.3 snowfall days, and 18.78" (477mm) of snow is accumulated.Daylight
The average length of the day in May is 14h and 40min.On the first day of May in Greenfield, sunrise is at 5:40 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 5:11 am and sunset at 8:19 pm EDT.
Sunshine
In Greenfield, the average sunshine in May is 8.2h.UV index
In May, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes 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:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures in Greenfield?
What is the average humidity in May in Greenfield?
How many days does it rain in May in Greenfield?
What is the last month it snows in Greenfield?
How many hours of daylight does Greenfield have in May?
When is the sunrise / sunset in May in Greenfield?
How long on average sun shines in May in Greenfield?
What is the UV index reading in May in Greenfield?
Average temperature in May
Greenfield, NH
- Average high temperature in May: 65.3°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (28.6°F).
- Average low temperature in May: 46°F
The month with the highest average low temperature is July (60.3°F).
The coldest month (with the lowest average low temperature) is January (16°F).
Average pressure in May
Greenfield, 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
Greenfield, NH
- Average wind speed in May: 6.5mph
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
Greenfield, NH
- Average humidity in May: 75%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is April (73%).
Average rainfall in May
Greenfield, NH
- Average rainfall in May: 1.14"
The wettest month (with the highest rainfall) is July (1.34").
The driest month (with the least rainfall) is September (0.71").
Average rainfall days in May
Greenfield, NH
- Average rainfall days in May: 13.5 days
The month with the highest number of rainy days is May (13.5 days).
The month with the least rainy days is February (4.2 days).
Average snowfall in May
Greenfield, NH
- Average snowfall in May: 0.28"
The month with the highest snowfall is November (3.9").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Greenfield, NH
- Average snowfall days in May: 0.7 days
The month with the highest number of snowfall days is February (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Greenfield, NH
- Average daylight in May: 14h and 4min
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 1min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in May
Greenfield, NH
- Average sunshine days in May: 14.9 days
The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is June (14.3 days).
Average UV index in May
Greenfield, 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
Greenfield, NH
- Average cloud cover in May: 49
The month with the most cloud cover is March (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in May
Greenfield, NH
- Average visibility in May: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Greenfield, New Hampshire, USA
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