May weather forecast and climate
Petrel, ND

May, the last month of the spring, in Petrel, is a comfortable month, with temperature in the range of an average low of 46.2°F (7.9°C) and an average high of 64.9°F (18.3°C).

Temperature

In May, the average high-temperature rises, from a cool 52.3°F (11.3°C) in April, to a comfortable 64.9°F (18.3°C). In May, in Petrel, North Dakota, the average low-temperature is 46.2°F (7.9°C).

Humidity

The average relative humidity in May is 62%.

Rainfall

In Petrel, in May, during 13.8 rainfall days, 2.2" (56mm) of precipitation is typically accumulated. Throughout the year, there are 101.3 rainfall days, and 14.25" (362mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Petrel. May is the last month it regularly snows. During 1.4 snowfall days, Petrel aggregates 1.34" (34mm) of snow. Throughout the year, there are 65.8 snowfall days, and 21.42" (544mm) of snow is accumulated.

Daylight

The average length of the day in May is 15h.

Sunshine

The average sunshine in Petrel is 9.6h.

UV index

The average daily maximum UV index in Petrel is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 4 in May transform into the following instructions:
Take precautions - Protection against sunburn is recommended. 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 Petrel?

In Petrel, in May, the average high-temperature is 64.9°F (18.3°C), and the average low-temperature is 46.2°F (7.9°C).

What is the average humidity in May in Petrel?

The average relative humidity in May in Petrel, North Dakota, is 62%.

How many days does it rain in May in Petrel?

In May, in Petrel, the rain falls for 13.8 days. Throughout May, 2.2" (56mm) of precipitation is accumulated.

What is the last month it snows in Petrel?

May is the last month it regularly snows in Petrel. During 1.4 snowfall days, in May, Petrel aggregates 1.34" (34mm) of snow.

How many hours of daylight does Petrel have in May?

In May, the average length of the day in Petrel is 15h.

How many hours of sunshine does Petrel have in May?

The average sunshine in May in Petrel is 9.6h.

What is the UV index reading in May in Petrel?

The average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a medium health risk from the exposure to the Sun's UV radiation.
Average temperature in May - Petrel, ND
  • Average high temperature in May: 64.9°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (25.2°F).

  • Average low temperature in May: 46.2°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).

Average pressure in May - Petrel, ND
  • Average pressure in May: 29.92"

The month with the highest atmospheric pressure is February (30.16").
The month with the lowest atmospheric pressure is June (29.84").

Average wind speed in May - Petrel, ND
  • Average wind speed in May: 11mph

The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest month (with the lowest average wind speed) is August (9.6mph).

Average humidity in May - Petrel, ND
  • Average humidity in May: 62%

The month with the highest relative humidity is January (85%).
Months with the lowest relative humidity are August and September (51%).

Average rainfall in May - Petrel, ND
  • Average rainfall in May: 2.2"

The wettest month (with the highest rainfall) is June (2.28").
The driest month (with the least rainfall) is January (0.47").

Average rainfall days in May - Petrel, ND
  • Average rainfall days in May: 13.8 days

The month with the highest number of rainy days is June (15.1 days).
The month with the least rainy days is January (2.9 days).

Average snowfall in May - Petrel, ND
  • Average snowfall in May: 1.34"

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 - Petrel, ND
  • Average snowfall days in May: 1.4 days

The month with the highest number of snowfall days is February (12.9 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May / Average sunshine in May - Petrel, ND
  • Average daylight in May: 15h

The month with the longest days is June (Average daylight: 15.7h).
The month with the shortest days is December (Average daylight: 8.7h).

  • Average sunshine in May: 9.6h

The month with the most sunshine is August (Average sunshine: 11.5h).
The month with the least sunshine is January (Average sunshine: 4.6h).

Average sunshine days in May - Petrel, ND
  • Average sunshine days in May: 13.7 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is June (11.7 days).

Average UV index in May - Petrel, ND
  • Average UV index in May: 4

Months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in May - Petrel, ND
  • Average cloud cover in May: 36

Months with the most cloud cover are January and February (Cloud cover 52).
Months with the least cloud cover are July and August (Cloud cover 20).

Average visibility in May - Petrel, ND
  • Average visibility in May: 6mi

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