May weather forecast
Riverdale, ND

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Weather in May

The last month of the spring, May, is an enjoyable month in Riverdale, North Dakota, with an average temperature ranging between max 64.2°F (17.9°C) and min 46.4°F (8°C).

Temperature

May's arrival is marked by an increase in the average high-temperature, moving from a fresh 50°F (10°C) in April to an enjoyable 64.2°F (17.9°C). Riverdale's average low-temperature is measured at a chilly 46.4°F (8°C) during May.

Humidity

In Riverdale, North Dakota, the average relative humidity in May is 60%.

Rainfall

In Riverdale, in May, it is raining for 12.2 days, with typically 1.61" (41mm) of accumulated precipitation. In Riverdale, during the entire year, the rain falls for 95.9 days and collects up to 14.65" (372mm) of precipitation.

Snowfall

Months with snowfall in Riverdale are January through May, October through December. May is the last month it regularly snows in Riverdale. During 0.5 snowfall days, in May, Riverdale aggregates 0.2" (5mm) of snow. Throughout the year, there are 68 snowfall days, and 18.19" (462mm) of snow is accumulated.

Daylight

In May, the average length of the day is 15h and 8min.
On the first day of the month, sunrise is at 6:27 am and sunset at 8:57 pm. On the last day of May, in Riverdale, sunrise is at 5:52 am and sunset at 9:34 pm CDT.

Sunshine

The average sunshine in May in Riverdale is 9.7h.

UV index

In May, the average daily maximum UV index in Riverdale is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index, 4 in May, converts into the following recommendations:
Prioritize safety - Suggestions to prevent sun damage are offered. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
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Frequently asked questions

What are the temperatures in Riverdale in May?

The average high-temperature and low-temperature during May are 64.2°F (17.9°C) and 46.4°F (8°C) respectively.

What is the average humidity in May in Riverdale?

The average relative humidity in May in Riverdale is 60%.

How much does it rain in Riverdale in May?

In Riverdale, North Dakota, in May, it is raining for 12.2 days, with typically 1.61" (41mm) of accumulated precipitation.

What is the last month it snows in Riverdale?

May is the last month it regularly snows in Riverdale, North Dakota. During 0.5 snowfall days, in May, Riverdale aggregates 0.2" (5mm) of snow.

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

In Riverdale, North Dakota, the average day length in May is 15h and 8min.

When is the sunrise / sunset in May in Riverdale?

In May, on the first day of the month, sunrise is at 6:27 am and sunset at 8:57 pm. On the last day of the month, in Riverdale, North Dakota, sunrise is at 5:52 am and sunset at 9:34 pm CDT.

How many hours of sunshine does Riverdale have in May?

In Riverdale, the average sunshine duration in May is 9.7h.

What is the UV index intensity in May in Riverdale?

In May, the average daily maximum UV index in Riverdale is 4. 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
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Riverdale, ND

Average temperature in May - Riverdale, ND
  • Average high temperature in May: 64.2°F

The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (19.6°F).

  • Average low temperature in May: 46.4°F

The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is January (5.4°F).

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Average pressure in May
Riverdale, ND

Average pressure in May - Riverdale, ND
  • Average pressure in May: 29.93"Hg

The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

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Average wind speed in May
Riverdale, ND

Average wind speed in May - Riverdale, ND
  • Average wind speed in May: 10.4mph

The windiest month (with the highest average wind speed) is October (11mph).
The calmest month (with the lowest average wind speed) is August (8.6mph).

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Average humidity in May
Riverdale, ND

Average humidity in May - Riverdale, ND
  • Average humidity in May: 60%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (54%).

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Average rainfall in May
Riverdale, ND

Average rainfall in May - Riverdale, ND
  • Average rainfall in May: 1.61"

The wettest month (with the highest rainfall) is June (2.64").
The driest month (with the least rainfall) is February (0.39").

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Average rainfall days in May
Riverdale, ND

Average rainfall days in May - Riverdale, ND
  • Average rainfall days in May: 12.2 days

The month with the highest number of rainy days is June (13.9 days).
The month with the least rainy days is February (2.1 days).

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Average snowfall in May
Riverdale, ND

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

The month with the highest snowfall is January (3.31").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Riverdale, ND

Average snowfall days in May - Riverdale, ND
  • Average snowfall days in May: 0.5 days

The month with the highest number of snowfall days is December (13 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Riverdale, ND
  • Average daylight in May: 15h and 1min

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).

  • Average sunshine in May: 9h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 18min).
The months with the least sunshine are January and December (Average sunshine: 3h and 42min).

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Average sunshine days in May
Riverdale, ND

Average sunshine days in May - Riverdale, ND
  • Average sunshine days in May: 16.5 days

The month with the most sunshine days is September (19.8 days).
The month with the least sunshine days is March (13.9 days).

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Average UV index in May
Riverdale, ND

Average UV index in May - Riverdale, 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 and December (UV index 1).

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Average cloud cover in May
Riverdale, ND

Average cloud cover in May - Riverdale, ND
  • Average cloud cover in May: 37

The month with the most cloud cover is February (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 22).

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Average visibility in May
Riverdale, ND

Average visibility in May - Riverdale, 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).

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Riverdale, North Dakota, USA

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