May weather forecast
East Derry, NH

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Weather in May

The last month of the spring, May, is a refreshing month in East Derry, New Hampshire, with an average temperature varying between 66.9°F (19.4°C) and 47.1°F (8.4°C).

Temperature

The beginning of May signals a rise in the average high-temperature, moving from a cool 55°F (12.8°C) in April to a comfortable 66.9°F (19.4°C). During the nights in May, East Derry experiences a consistent average temperature of 47.1°F (8.4°C).

Humidity

The average relative humidity in May in East Derry is 74%.

Rainfall

In East Derry, during May, the rain falls for 12 days and regularly aggregates up to 0.98" (25mm) of precipitation. Throughout the year, in East Derry, there are 104.4 rainfall days, and 12.95" (329mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows in East Derry. During 0.1 snowfall days, in May, East Derry aggregates 0.04" (1mm) of snow. In East Derry, during the entire year, snow falls for 26.1 days and aggregates up to 11.54" (293mm) of snow.

Daylight

In East Derry, the average length of the day in May is 14h and 40min.
On the first day of the month, sunrise is at 5:38 am and sunset at 7:46 pm. On the last day of May, sunrise is at 5:09 am and sunset at 8:16 pm EDT.

Sunshine

In East Derry, the average sunshine in May is 8.4h.

UV index

In May, the average daily maximum UV index in East Derry is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: In May, the maximum UV index of 5 suggests these recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
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Frequently asked questions

What are May temperatures in East Derry?

During May, East Derry experiences an average high-temperature of 66.9°F (19.4°C) and a low-temperature of 47.1°F (8.4°C).

What is the average humidity in May in East Derry?

In East Derry, the average relative humidity in May is 74%.

How much does it rain in East Derry in May?

In East Derry, in May, during 12 rainfall days, 0.98" (25mm) of precipitation is typically accumulated.

What is the last month it snows in East Derry?

May is the last month it regularly snows in East Derry. During 0.1 snowfall days, in May, East Derry aggregates 0.04" (1mm) of snow.

What is the average length of the day in May in East Derry?

In East Derry, the average day length in May is 14h and 40min.

When are sunrise and sunset in May in East Derry?

In May, on the first day of the month, sunrise is at 5:38 am and sunset at 7:46 pm. On the last day of the month, in East Derry, sunrise is at 5:09 am and sunset at 8:16 pm EDT.

How many hours of sunshine does East Derry have in May?

In East Derry, the average sunshine duration in May is 8.4h.

What is the UV index intensity in May in East Derry?

In East Derry, New Hampshire, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unsafe 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
East Derry, NH

Average temperature in May - East Derry, NH
  • Average high temperature in May: 66.9°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in May: 47.1°F

The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (18°F).

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Average pressure in May
East Derry, NH

Average pressure in May - East Derry, 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
East Derry, NH

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

The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

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Average humidity in May
East Derry, NH

Average humidity in May - East Derry, NH
  • Average humidity in May: 74%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (72%).

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Average rainfall in May
East Derry, NH

Average rainfall in May - East Derry, NH
  • Average rainfall in May: 0.98"

The wettest month (with the highest rainfall) is October (1.38").
The driest month (with the least rainfall) is January (0.75").

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Average rainfall days in May
East Derry, NH

Average rainfall days in May - East Derry, NH
  • Average rainfall days in May: 12 days

The month with the highest number of rainy days is June (12.1 days).
The month with the least rainy days is January (4.1 days).

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Average snowfall in May
East Derry, NH

Average snowfall in May - East Derry, NH
  • Average snowfall in May: 0.04"

The month with the highest snowfall is December (2.99").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
East Derry, NH

Average snowfall days in May - East Derry, NH
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (7.1 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
East Derry, NH

Average daylight in May / Average sunshine in May - East Derry, 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 2min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in May
East Derry, NH

Average sunshine days in May - East Derry, NH
  • Average sunshine days in May: 17.1 days

The months with the most sunshine days are January and December (21.3 days).
The month with the least sunshine days is June (16.7 days).

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Average UV index in May
East Derry, NH

Average UV index in May - East Derry, NH
  • Average UV index in May: 5

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in May
East Derry, NH

Average cloud cover in May - East Derry, NH
  • Average cloud cover in May: 47

The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 33).

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Average visibility in May
East Derry, NH

Average visibility in May - East Derry, NH
  • Average visibility in May: 5mi

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

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East Derry, New Hampshire, USA

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