May weather forecast
Sullivan, NH

englishespañol中文
Share

Weather in May

The last month of the spring, May, is a comfortable month in Sullivan, New Hampshire, with an average temperature varying between 45.3°F (7.4°C) and 66°F (18.9°C).

Temperature

The shift from April to May is marked by an increase in the average high-temperature, moving from a fresh 52.9°F (11.6°C) to a refreshing 66°F (18.9°C). Sullivan's average low-temperature for the month of May records at a frosty 45.3°F (7.4°C).

Humidity

In Sullivan, the average relative humidity in May is 75%.

Rainfall

In Sullivan, in May, it is raining for 14.6 days, with typically 1.14" (29mm) of accumulated precipitation. In Sullivan, during the entire year, the rain falls for 125.1 days and collects up to 11.69" (297mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.1 snowfall days, in May, Sullivan aggregates 0.16" (4mm) of snow. In Sullivan, during the entire year, snow falls for 39.8 days and aggregates up to 10.2" (259mm) of snow.

Daylight

In Sullivan, the average length of the day in May is 14h and 41min.
On the first day of May in Sullivan, sunrise is at 5:41 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 5:12 am and sunset at 8:20 pm EDT.

Sunshine

The average sunshine in May is 8.4h.

UV index

In Sullivan, New Hampshire, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum UV index, 5 during May, leads to the following recommendations:
Prioritize safety - Suggestions to prevent sun damage are offered. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
[Resources]

Frequently asked questions

What is the temperature in May in Sullivan?

An average high-temperature, in May, in Sullivan, is 66°F (18.9°C) and the average low-temperature is 45.3°F (7.4°C).

What is the average humidity in May in Sullivan?

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

How many days does it rain in May in Sullivan?

In May, the rain falls for 14.6 days. Throughout May, 1.14" (29mm) of precipitation is accumulated.

What is the last month it snows in Sullivan?

May is the last month it regularly snows in Sullivan. During 0.1 snowfall days, in May, Sullivan aggregates 0.16" (4mm) of snow.

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

In May, the average day length in Sullivan is 14h and 41min.

When are sunrise and sunset in May in Sullivan?

In May, on the first day of the month, sunrise is at 5:41 am and sunset at 7:50 pm. On the last day of the month, in Sullivan, New Hampshire, sunrise is at 5:12 am and sunset at 8:20 pm EDT.

How many hours of sunshine does Sullivan have in May?

The average sunshine duration in May in Sullivan is 8.4h.

What is the UV index reading in May in Sullivan?

In May, the average daily maximum UV index in Sullivan, New Hampshire, is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from exposure to the Sun's 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
Sullivan, NH

Average temperature in May - Sullivan, NH
  • Average high temperature in May: 66°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (27.9°F).

  • Average low temperature in May: 45.3°F

The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).

[Resources]

Average pressure in May
Sullivan, NH

Average pressure in May - Sullivan, NH
  • Average pressure in May: 30"Hg

The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

[Resources]

Average wind speed in May
Sullivan, NH

Average wind speed in May - Sullivan, NH
  • Average wind speed in May: 6.4mph

The windiest months (with the highest average wind speed) are January, February and March (7.9mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

[Resources]

Average humidity in May
Sullivan, NH

Average humidity in May - Sullivan, NH
  • Average humidity in May: 75%

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

[Resources]

Average rainfall in May
Sullivan, NH

Average rainfall in May - Sullivan, NH
  • Average rainfall in May: 1.14"

The wettest month (with the highest rainfall) is July (1.3").
The driest month (with the least rainfall) is March (0.75").

[Resources]

Average rainfall days in May
Sullivan, NH

Average rainfall days in May - Sullivan, NH
  • Average rainfall days in May: 14.6 days

The month with the highest number of rainy days is May (14.6 days).
The month with the least rainy days is January (6.3 days).

[Resources]

Average snowfall in May
Sullivan, NH

Average snowfall in May - Sullivan, NH
  • Average snowfall in May: 0.16"

The month with the highest snowfall is January (2.64").
The months with the least snowfall are June, July, August and September (0").

[Resources]

Average snowfall days in May
Sullivan, NH

Average snowfall days in May - Sullivan, NH
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is February (9.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

[Resources]

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

Average daylight in May / Average sunshine in May - Sullivan, 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 18min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).

[Resources]

Average sunshine days in May
Sullivan, NH

Average sunshine days in May - Sullivan, NH
  • Average sunshine days in May: 13.8 days

The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is May (13.8 days).

[Resources]

Average UV index in May
Sullivan, NH

Average UV index in May - Sullivan, 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 January, February, March, October, November and December (UV index 2).

[Resources]

Average cloud cover in May
Sullivan, NH

Average cloud cover in May - Sullivan, NH
  • Average cloud cover in May: 47

The months with the most cloud cover are February and March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 35).

[Resources]

Average visibility in May
Sullivan, NH

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

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

[Resources]

Sullivan, New Hampshire, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location