May weather forecast
Walhalla, ND

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Weather in May

The last month of the spring, May, is a refreshing month in Walhalla, North Dakota, with temperature in the range of an average low of 46.9°F (8.3°C) and an average high of 63.7°F (17.6°C).

Temperature

Walhalla's weather in May is characterized by a distinct rise in the average high-temperature, escalating from a chilly 48.4°F (9.1°C) in April to an enjoyable 63.7°F (17.6°C). An average temperature of 46.9°F (8.3°C) marks the nights in Walhalla in May.

Humidity

The average relative humidity in May is 62%.

Rainfall

In Walhalla, in May, during 12.8 rainfall days, 1.93" (49mm) of precipitation is typically accumulated. Throughout the year, there are 101.7 rainfall days, and 14.96" (380mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, September through December. May is the last month it regularly snows in Walhalla. During 0.6 snowfall days, in May, Walhalla aggregates 0.2" (5mm) of snow. In Walhalla, during the entire year, snow falls for 73.1 days and aggregates up to 18.07" (459mm) of snow.

Daylight

In Walhalla, the average length of the day in May is 15h and 19min.
On the first day of May in Walhalla, sunrise is at 6:09 am and sunset at 8:48 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 9:26 pm CDT.

Sunshine

The average sunshine in May is 9h.

UV index

In May, the average daily maximum UV index in Walhalla is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum daily UV index of 4 during May morphs into the following directions:
Make use of precautions - It is urged to ward off sun damage. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Walhalla in May?

Walhalla in May has an average high-temperature of 63.7°F (17.6°C) and an average low-temperature of 46.9°F (8.3°C).

What is the average humidity in May in Walhalla?

In May, the average relative humidity is 62%.

How many days does it rain in May in Walhalla?

In May, the rain falls for 12.8 days. Throughout May, 1.93" (49mm) of precipitation is accumulated.

What is the last month it snows in Walhalla?

May is the last month it regularly snows in Walhalla. During 0.6 snowfall days, in May, Walhalla aggregates 0.2" (5mm) of snow.

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

In May, the average day length in Walhalla, North Dakota, is 15h and 19min.

When are sunrise and sunset in May in Walhalla?

In May, on the first day of the month, sunrise is at 6:09 am and sunset at 8:48 pm. On the last day of the month, in Walhalla, North Dakota, sunrise is at 5:32 am and sunset at 9:26 pm CDT.

How long on average sun shines in May in Walhalla?

The average sunshine duration in May in Walhalla is 9h.

How high is the UV index in May in Walhalla?

In May, the average daily maximum UV index in Walhalla is 4. A UV Index reading of 3 to 5 represents a medium health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Walhalla, ND

Average temperature in May - Walhalla, ND
  • Average high temperature in May: 63.7°F

The warmest month (with the highest average high temperature) is August (79.9°F).
The month with the lowest average high temperature is January (14.2°F).

  • Average low temperature in May: 46.9°F

The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (0.9°F).

Average pressure in May
Walhalla, ND

Average pressure in May - Walhalla, ND
  • Average pressure in May: 29.94"Hg

The month with the highest atmospheric pressure is February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in May
Walhalla, ND

Average wind speed in May - Walhalla, ND
  • Average wind speed in May: 9.7mph

The windiest month (with the highest average wind speed) is October (10.4mph).
The calmest month (with the lowest average wind speed) is August (8.1mph).

Average humidity in May
Walhalla, ND

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

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (59%).

Average rainfall in May
Walhalla, ND

Average rainfall in May - Walhalla, ND
  • Average rainfall in May: 1.93"

The wettest month (with the highest rainfall) is June (2.56").
The driest month (with the least rainfall) is February (0.51").

Average rainfall days in May
Walhalla, ND

Average rainfall days in May - Walhalla, ND
  • Average rainfall days in May: 12.8 days

The month with the highest number of rainy days is June (16.5 days).
The month with the least rainy days is February (2 days).

Average snowfall in May
Walhalla, ND

Average snowfall in May - Walhalla, ND
  • Average snowfall in May: 0.2"

The month with the highest snowfall is December (3.43").
The months with the least snowfall are June, July and August (0").

Average snowfall days in May
Walhalla, ND

Average snowfall days in May - Walhalla, ND
  • Average snowfall days in May: 0.6 days

The month with the highest number of snowfall days is January (14.4 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in May /
Average sunshine in May
Walhalla, ND

Average daylight in May / Average sunshine in May - Walhalla, ND
  • Average daylight in May: 15h and 2min

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).

  • Average sunshine in May: 9h and 0min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).

Average sunshine days in May
Walhalla, ND

Average sunshine days in May - Walhalla, ND
  • Average sunshine days in May: 15 days

The month with the most sunshine days is August (19.2 days).
The month with the least sunshine days is June (10.3 days).

Average UV index in May
Walhalla, ND

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

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

Average cloud cover in May
Walhalla, ND

Average cloud cover in May - Walhalla, ND
  • Average cloud cover in May: 40

The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 24).

Average visibility in May
Walhalla, ND

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

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

Walhalla, North Dakota, USA

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