May weather forecast and climate
Arena, ND

May, the last month of the spring, in Arena, is a comfortable month, with average temperature fluctuating between 46.4°F (8°C) and 64.9°F (18.3°C).

Temperature

In Arena, North Dakota, the average high-temperature increases, from a cool 51.8°F (11°C) in April, to an enjoyable 64.9°F (18.3°C). The average low-temperature, in May, is 46.4°F (8°C).

Humidity

The average relative humidity in May is 63%.

Rainfall

In Arena, during 15.5 rainfall days, 2.17" (55mm) of precipitation is typically accumulated. Throughout the year, in Arena, there are 105.9 rainfall days, and 15" (381mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Arena are January through May, October through December. May is the last month it regularly snows. During 0.4 snowfall days, Arena aggregates 0.2" (5mm) of snow. In Arena, during the entire year, snow falls for 73.7 days, and aggregates up to 23.11" (587mm) of snow.

Daylight

In May, the average length of the day is 15.1h.

Sunshine

The average sunshine in Arena is 9.5h.

UV index

The average daily maximum UV index in Arena is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to the UV radiation for average individuals.
Note: The daily maximum UV index of 5 in May interpret into the following advice:
Take precautions - Protection against the skin and eye damage is obliged. 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 Arena?

The average high-temperature, in May, in Arena, North Dakota, is 64.9°F (18.3°C), while the average low-temperature is 46.4°F (8°C).

What is the average humidity in May in Arena?

In May, the average relative humidity in Arena, North Dakota, is 63%.

How many days does it rain in May in Arena?

In Arena, North Dakota, in May, during 15.5 rainfall days, 2.17" (55mm) of precipitation is typically accumulated.

What is the last month it snows in Arena?

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

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

The average length of the day in May in Arena is 15.1h.

How long on average sun shines in May in Arena?

In May, the average sunshine in Arena is 9.5h.

What is the UV index reading in May in Arena?

In May, the average daily maximum UV index in Arena, North Dakota, is 5. A UV Index reading of 3 to 5 represents a moderate health threat from the exposure to the Sun's UV radiation.
Average temperature in May - Arena, ND
  • Average high temperature in May: 18.3°C

The warmest month (with the highest average high temperature) is July (28.7°C).
The month with the lowest average high temperature is January (-6.2°C).

  • Average low temperature in May: 8°C

The month with the highest average low temperature is July (16.3°C).
The coldest month (with the lowest average low temperature) is January (-14.4°C).

Average pressure in May - Arena, ND
  • Average pressure in May: 1013.3mbar

The month with the highest atmospheric pressure is February (1021.7mbar).
The month with the lowest atmospheric pressure is June (1010.7mbar).

Average wind speed in May - Arena, ND
  • Average wind speed in May: 16.1km/h

The windiest month (with the highest average wind speed) is April (17.2km/h).
The calmest month (with the lowest average wind speed) is August (13.4km/h).

Average humidity in May - Arena, ND
  • Average humidity in May: 63%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (55%).

Average rainfall in May - Arena, ND
  • Average rainfall in May: 55mm

The wettest month (with the highest rainfall) is June (58mm).
The driest month (with the least rainfall) is January (15mm).

Average rainfall days in May - Arena, ND
  • Average rainfall days in May: 15.5 days

The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is February (3.4 days).

Average snowfall in May - Arena, ND
  • Average snowfall in May: 5mm

The month with the highest snowfall is February (110mm).
Months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in May - Arena, ND
  • Average snowfall days in May: 0.4 days

The month with the highest number of snowfall days is December (15.7 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May / Average sunshine in May - Arena, ND
  • Average daylight in May: 15.1h

The month with the longest days is June (Average daylight: 15.9h).
The month with the shortest days is December (Average daylight: 8.6h).

  • Average sunshine in May: 9.5h

The month with the most sunshine is July (Average sunshine: 11.4h).
The month with the least sunshine is January (Average sunshine: 3.8h).

Average sunshine days in May - Arena, ND
  • Average sunshine days in May: 12.8 days

The month with the most sunshine days is September (19.9 days).
The month with the least sunshine days is March (12.3 days).

Average UV index in May - Arena, ND
  • Average UV index in May: 5

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

Average cloud cover in May - Arena, ND
  • Average cloud cover in May: 38

The month with the most cloud cover is February (Cloud cover 60).
Months with the least cloud cover are July and August (Cloud cover 21).

Average visibility in May - Arena, ND
  • Average visibility in May: 10km

Months with the highest visibility are May, June, July, August, September and October (10km).
Months with the lowest visibility are January, February, March and December (8km).