May weather forecast and climate
Jackson, NH

The last month of the spring, May, is an enjoyable month in Jackson, New Hampshire, with average temperature fluctuating between 42.3°F (5.7°C) and 62.2°F (16.8°C).

Temperature

In Jackson, the average high-temperature in May significantly increases, from a chilly 47.8°F (8.8°C) in April, to an enjoyable 62.2°F (16.8°C). In May, the average low-temperature is 42.3°F (5.7°C).

Humidity

May is the least humid month, with an average relative humidity of 77%.

Rainfall

In Jackson, during 10.3 rainfall days, 0.79" (20mm) of precipitation is typically accumulated. In Jackson, during the entire year, the rain falls for 90.5 days and collects up to 11.61" (295mm) of precipitation.

Snowfall

Months with snowfall in Jackson, New Hampshire, are January through May, October through December. May is the last month it regularly snows in Jackson. During 0.4 snowfall days, in May, Jackson aggregates 0.2" (5mm) of snow. Throughout the year, there are 41.7 snowfall days, and 19.96" (507mm) of snow is accumulated.

Daylight

In Jackson, the average length of the day is 14.8h.

Sunshine

In May, the average sunshine in Jackson is 8.1h.

UV index

The average daily maximum UV index in Jackson is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: In May, the average maximum UV index of 4 translate into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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.

What is the temperature in May in Jackson?

In Jackson, in May, the average high-temperature is 62.2°F (16.8°C), and the average low-temperature is 42.3°F (5.7°C).

What is the least humid month in Jackson?

May is the least humid month in Jackson, New Hampshire, with an average relative humidity of 77%.

What is the average humidity in May in Jackson?

The average relative humidity in May is 77%.

How many days does it rain in May in Jackson?

In May, the rain falls for 10.3 days. Throughout May, 0.79" (20mm) of precipitation is accumulated.

What is the last month it snows in Jackson?

May is the last month it regularly snows in Jackson. During 0.4 snowfall days, in May, Jackson aggregates 0.2" (5mm) of snow.

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

In May, the average length of the day in Jackson, New Hampshire, is 14.8h.

How long on average sun shines in May in Jackson?

The average sunshine in May is 8.1h.

What is the UV index intensity in May in Jackson?

The average daily maximum UV index in May in Jackson, New Hampshire, is 4. A UV Index estimate of 3 to 5 represents a medium health risk from unsafe exposure to the Sun's UV rays.
Average temperature in May - Jackson, NH
  • Average high temperature in May: 62.2°F

The warmest month (with the highest average high temperature) is July (76.3°F).
The month with the lowest average high temperature is January (24.3°F).

  • Average low temperature in May: 42.3°F

The month with the highest average low temperature is July (55.4°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).

Average pressure in May - Jackson, NH
  • Average pressure in May: 29.98"

The month with the highest atmospheric pressure is November (30.06").
The month with the lowest atmospheric pressure is June (29.91").

Average wind speed in May - Jackson, NH
  • Average wind speed in May: 5.4mph

The windiest months (with the highest average wind speed) are January and February (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

Average humidity in May - Jackson, NH
  • Average humidity in May: 77%

Months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is May (77%).

Average rainfall in May - Jackson, NH
  • Average rainfall in May: 0.79"

The wettest months (with the highest rainfall) are April and October (1.46").
The driest month (with the least rainfall) is September (0.39").

Average rainfall days in May - Jackson, NH
  • Average rainfall days in May: 10.3 days

Months with the highest number of rainy days are May and July (10.3 days).
The month with the least rainy days is February (3.7 days).

Average snowfall in May - Jackson, NH
  • Average snowfall in May: 0.2"

The month with the highest snowfall is February (4.53").
Months with the least snowfall are June, July, August and September (0").

Average snowfall days in May - Jackson, NH
  • Average snowfall days in May: 0.4 days

The month with the highest number of snowfall days is February (8.4 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May / Average sunshine in May - Jackson, NH
  • Average daylight in May: 14.8h

The month with the longest days is June (Average daylight: 15.5h).
The month with the shortest days is December (Average daylight: 8.9h).

  • Average sunshine in May: 8.1h

The month with the most sunshine is August (Average sunshine: 10.1h).
The month with the least sunshine is February (Average sunshine: 4.2h).

Average sunshine days in May - Jackson, NH
  • Average sunshine days in May: 18.3 days

The month with the most sunshine days is January (22.6 days).
The month with the least sunshine days is June (18.2 days).

Average UV index in May - Jackson, NH
  • Average UV index in May: 4

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

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

The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 38).

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

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