May weather forecast
Washington, NH

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Weather in May

May, the last month of the spring in Washington, is an enjoyable month, with an average temperature ranging between min 44.4°F (6.9°C) and max 64.4°F (18°C).

Temperature

Washington sees an increase in average high-temperatures during May, moving from a fresh 50.7°F (10.4°C) in April to an enjoyable 64.4°F (18°C). Washington cools down to an average low-temperature of 44.4°F (6.9°C) throughout the month of May.

Humidity

The average relative humidity in May is 76%.

Rainfall

In Washington, in May, during 14.4 rainfall days, 1.42" (36mm) of precipitation is typically accumulated. In Washington, during the entire year, the rain falls for 121.9 days and collects up to 13.58" (345mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 1.4 snowfall days, in May, Washington aggregates 1.06" (27mm) of snow. In Washington, during the entire year, snow falls for 65.7 days and aggregates up to 19.88" (505mm) of snow.

Daylight

In Washington, New Hampshire, the average length of the day in May is 14h and 41min.
On the first day of the month, sunrise is at 5:40 am and sunset at 7:50 pm. On the last day of May, in Washington, sunrise is at 5:11 am and sunset at 8:20 pm EDT.

Sunshine

In May, the average sunshine in Washington is 8h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index of 5 in May converts into the following recommendations:
Take precautions - Protection against sun damage is advised. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
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Frequently asked questions

What is the temperature in May in Washington?

The high-temperature, in May, in Washington, records 64.4°F (18°C), while the low-temperature is 44.4°F (6.9°C).

What is the average humidity in May in Washington?

In Washington, the average relative humidity in May is 76%.

How many days does it rain in May in Washington?

In May, the rain falls for 14.4 days. Throughout May, 1.42" (36mm) of precipitation is accumulated.

What is the last month it snows in Washington?

May is the last month it regularly snows. During 1.4 snowfall days, in May, Washington aggregates 1.06" (27mm) of snow.

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

In May, the average day length in Washington, New Hampshire, is 14h and 41min.

When is the sunrise / sunset in May in Washington?

In May, on the first day of the month, sunrise is at 5:40 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 5:11 am and sunset at 8:20 pm EDT.

How many hours of sunshine does Washington have in May?

The average sunshine duration in May is 8h.

What is the month with the highest UV index in Washington?

May through August, with an average maximum UV index of 5, are months with the highest UV index in Washington.

What is the UV index intensity in May in Washington?

In Washington, New Hampshire, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from exposure to Sun's UV rays.
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
Washington, NH

Average temperature in May - Washington, NH
  • Average high temperature in May: 64.4°F

The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (25.5°F).

  • Average low temperature in May: 44.4°F

The month with the highest average low temperature is July (58.1°F).
The coldest month (with the lowest average low temperature) is January (13.1°F).

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Average pressure in May
Washington, NH

Average pressure in May - Washington, NH
  • Average pressure in May: 29.99"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).

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Average wind speed in May
Washington, NH

Average wind speed in May - Washington, NH
  • Average wind speed in May: 6.3mph

The windiest months (with the highest average wind speed) are January and February (7.8mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in May
Washington, NH

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

The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is April (75%).

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Average rainfall in May
Washington, NH

Average rainfall in May - Washington, NH
  • Average rainfall in May: 1.42"

The wettest month (with the highest rainfall) is October (1.61").
The driest month (with the least rainfall) is January (0.79").

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Average rainfall days in May
Washington, NH

Average rainfall days in May - Washington, NH
  • Average rainfall days in May: 14.4 days

The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is February (5.8 days).

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Average snowfall in May
Washington, NH

Average snowfall in May - Washington, NH
  • Average snowfall in May: 1.06"

The month with the highest snowfall is February (3.82").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Washington, NH

Average snowfall days in May - Washington, NH
  • Average snowfall days in May: 1.4 days

The month with the highest number of snowfall days is February (13.9 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
Washington, NH

Average daylight in May / Average sunshine in May - Washington, 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 0min

The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).

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Average sunshine days in May
Washington, NH

Average sunshine days in May - Washington, NH
  • Average sunshine days in May: 13.6 days

The month with the most sunshine days is January (17.6 days).
The month with the least sunshine days is April (12.9 days).

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Average UV index in May
Washington, NH

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

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are February and December (UV index 1).

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Average cloud cover in May
Washington, NH

Average cloud cover in May - Washington, NH
  • Average cloud cover in May: 50

The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 37).

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Average visibility in May
Washington, NH

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

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

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Washington, New Hampshire, USA

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