May weather forecast and climate
Greenville, NH

Weather in May

May, the last month of the spring, in Greenville, is an enjoyable month, with temperature in the range of an average high of 65.3°F (18.5°C) and an average low of 46°F (7.8°C).

Temperature

In Greenville, the average high-temperature rises, from a fresh 52.9°F (11.6°C) in April, to an enjoyable 65.3°F (18.5°C). In Greenville, the average low-temperature is 46°F (7.8°C).

Humidity

The average relative humidity in Greenville is 75%.

Rainfall

In Greenville, it is raining for 13.5 days, with typically 1.14" (29mm) of accumulated precipitation. In Greenville, during the entire year, the rain falls for 113.8 days and collects up to 12.44" (316mm) 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, Greenville aggregates 0.28" (7mm) of snow. Throughout the year, in Greenville, New Hampshire, there are 45.3 snowfall days, and 18.78" (477mm) of snow is accumulated.

Daylight

In May, the average length of the day in Greenville, New Hampshire, is 14.7h.

Sunshine

The average sunshine in Greenville is 8.2h.

UV index

The average daily maximum UV index in Greenville is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to the UV radiation for ordinary individuals.
Note: The daily maximum UV index of 5 in May interpret into the following advice:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the average humidity in May in Greenville?

In Greenville, New Hampshire, the average relative humidity in May is 75%.

How much does it rain in Greenville in May?

In Greenville, in May, during 13.5 rainfall days, 1.14" (29mm) of precipitation is typically accumulated.

What is the last month it snows in Greenville?

May is the last month it regularly snows in Greenville, New Hampshire. During 0.7 snowfall days, in May, Greenville aggregates 0.28" (7mm) of snow.

How many hours of daylight does Greenville have in May?

The average length of the day in May is 14.7h.

How long on average sun shines in May in Greenville?

In Greenville, New Hampshire, the average sunshine in May is 8.2h.

What is the UV index intensity in May in Greenville?

The average daily maximum UV index in May in Greenville, New Hampshire, is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from unprotected exposure to the UV radiation.

Average temperature in May
Greenville, NH

Average temperature in May - Greenville, 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).

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Average pressure in May
Greenville, NH

Average pressure in May - Greenville, NH
  • Average pressure in May: 30"

The month with the highest atmospheric pressure is November (30.07").
The month with the lowest atmospheric pressure is June (29.92").

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Average wind speed in May
Greenville, NH

Average wind speed in May - Greenville, 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).

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Average humidity in May
Greenville, NH

Average humidity in May - Greenville, 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%).

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Average rainfall in May
Greenville, NH

Average rainfall in May - Greenville, 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").

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Average rainfall days in May
Greenville, NH

Average rainfall days in May - Greenville, 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).

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Average snowfall in May
Greenville, NH

Average snowfall in May - Greenville, NH
  • Average snowfall in May: 0.28"

The month with the highest snowfall is November (3.9").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Greenville, NH

Average snowfall days in May - Greenville, NH
  • Average snowfall days in May: 0.7 days

The month with the highest number of snowfall days is February (9.7 days).
Months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in May /
Average sunshine in May
Greenville, NH

Average daylight in May / Average sunshine in May - Greenville, NH
  • Average daylight in May: 14.7h

The month with the longest days is June (Average daylight: 15.3h).
The month with the shortest days is December (Average daylight: 9.1h).

  • Average sunshine in May: 8.2h

The month with the most sunshine is August (Average sunshine: 10.2h).
The month with the least sunshine is February (Average sunshine: 4.4h).

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Average sunshine days in May
Greenville, NH

Average sunshine days in May - Greenville, 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).

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Average UV index in May
Greenville, NH

Average UV index in May - Greenville, NH
  • Average UV index in May: 5

The month with the highest UV index is July (UV index 6).
Months with the lowest UV index are January, February, March, October, November and December (UV index 2).

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Average cloud cover in May
Greenville, NH

Average cloud cover in May - Greenville, 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).

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Average visibility in May
Greenville, NH

Average visibility in May - Greenville, NH
  • Average visibility in May: 5mi

The month with the highest visibility is April (6mi).
Months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).

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