May weather forecast
Harrisville, NH

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Weather in May

The last month of the spring, May, is a refreshing month in Harrisville, New Hampshire, with an average temperature varying between 45.1°F (7.3°C) and 65.1°F (18.4°C).

Temperature

May's onset witnesses a shift in the average high-temperature, moving from a fresh 51.6°F (10.9°C) in April to a comfortable 65.1°F (18.4°C). During the month of May, the temperature generally drops to a low average of 45.1°F (7.3°C).

Humidity

The average relative humidity in May in Harrisville is 76%.

Rainfall

In Harrisville, in May, it is raining for 16 days, with typically 2.6" (66mm) of accumulated precipitation. Throughout the year, there are 141.7 rainfall days, and 32.09" (815mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Harrisville are January through May, October through December. May is the last month it regularly snows in Harrisville. During 0.5 snowfall days, in May, Harrisville aggregates 0.67" (17mm) of snow. In Harrisville, during the entire year, snow falls for 59.9 days and aggregates up to 47.95" (1218mm) of snow.

Daylight

The average length of the day in May is 14h and 40min.
On the first day of May, 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 8:20 pm EDT.

Sunshine

In May, the average sunshine in Harrisville is 7.7h.

UV index

In Harrisville, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: In May, the maximum UV index of 5 suggests this advice:
Exercise care. People with light skin might get burns in fewer than 30 minutes. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
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Frequently asked questions

What are May temperatures in Harrisville?

The high-temperature in Harrisville, New Hampshire, during May is 65.1°F (18.4°C) and the low-temperature is 45.1°F (7.3°C).

What is the average humidity in May in Harrisville?

The average relative humidity in May in Harrisville is 76%.

How many days does it rain in May in Harrisville?

In Harrisville, during May, the rain falls for 16 days and regularly aggregates up to 2.6" (66mm) of precipitation.

What is the last month it snows in Harrisville?

May is the last month it regularly snows in Harrisville. During 0.5 snowfall days, in May, Harrisville aggregates 0.67" (17mm) of snow.

What is the average length of the day in May in Harrisville?

In Harrisville, New Hampshire, the average day length in May is 14h and 40min.

When is the sunrise / sunset in May in Harrisville?

On the first day of May in Harrisville, 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 8:20 pm EDT.

How long on average sun shines in May in Harrisville?

The average sunshine duration in May in Harrisville is 7.7h.

How high is the UV index in May in Harrisville?

In May, the average daily maximum UV index in Harrisville is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Harrisville, NH

Average temperature in May - Harrisville, NH
  • Average high temperature in May: 65.1°F

The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (27.3°F).

  • Average low temperature in May: 45.1°F

The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).

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Average pressure in May
Harrisville, NH

Average pressure in May - Harrisville, 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).

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Average wind speed in May
Harrisville, NH

Average wind speed in May - Harrisville, NH
  • Average wind speed in May: 6.5mph

The windiest months (with the highest average wind speed) are January and February (8.2mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in May
Harrisville, NH

Average humidity in May - Harrisville, NH
  • Average humidity in May: 76%

The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is April (74%).

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Average rainfall in May
Harrisville, NH

Average rainfall in May - Harrisville, NH
  • Average rainfall in May: 2.6"

The wettest month (with the highest rainfall) is October (3.39").
The driest month (with the least rainfall) is August (2.28").

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Average rainfall days in May
Harrisville, NH

Average rainfall days in May - Harrisville, NH
  • Average rainfall days in May: 16 days

The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is February (6 days).

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Average snowfall in May
Harrisville, NH

Average snowfall in May - Harrisville, NH
  • Average snowfall in May: 0.67"

The month with the highest snowfall is February (11.5").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Harrisville, NH

Average snowfall days in May - Harrisville, NH
  • Average snowfall days in May: 0.5 days

The month with the highest number of snowfall days is February (13.5 days).
The 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
Harrisville, NH

Average daylight in May / Average sunshine in May - Harrisville, 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: 7h and 4min

The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).

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Average sunshine days in May
Harrisville, NH

Average sunshine days in May - Harrisville, NH
  • Average sunshine days in May: 12.9 days

The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is March (12 days).

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Average UV index in May
Harrisville, NH

Average UV index in May - Harrisville, 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 February and December (UV index 1).

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Average cloud cover in May
Harrisville, NH

Average cloud cover in May - Harrisville, NH
  • Average cloud cover in May: 52

The months with the most cloud cover are February and March (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 38).

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Average visibility in May
Harrisville, NH

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

The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is February (4mi).

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Harrisville, New Hampshire, USA

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