Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
The arrival of May brings a distinct temperature shift, with the average high-temperature escalating from a frosty 49.8°F (9.9°C) in April to an enjoyable 64.4°F (18°C). Ralston's nighttime temperature in May drops to an average of 46.4°F (8°C).Humidity
The average relative humidity in May is 59%.Rainfall
In Ralston, during May, the rain falls for 11.5 days and regularly aggregates up to 1.81" (46mm) of precipitation. Throughout the year, there are 89.5 rainfall days, and 13.94" (354mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.5 snowfall days, in May, Ralston aggregates 0.2" (5mm) of snow. In Ralston, during the entire year, snow falls for 58.4 days and aggregates up to 16.22" (412mm) of snow.Daylight
In May, the average length of the day is 15h and 14min.On the first day of May, sunrise is at 6:25 am and sunset at 9:00 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 9:37 pm CDT.
Sunshine
In May, the average sunshine is 9.7h.UV index
In May, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: A daily maximum UV index of 4 in May translates into the following instructions:
Exercise prevention - Warding off sunburn is urged. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Stay sun-safe with clothing that is both closely woven and worn loosely. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures?
What is the average humidity in May?
How many days does it rain in May?
What is the last month it snows?
How many hours of daylight does Ralston have in May?
When are sunrise and sunset in May in Ralston?
How many hours of sunshine does Ralston have in May?
What is the UV index reading in May?
Average temperature in May
Ralston, ND
- Average high temperature in May: 64.4°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (18.1°F).
- Average low temperature in May: 46.4°F
The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (4.5°F).
Average pressure in May
Ralston, ND
- Average pressure in May: 29.93"Hg
The month with the highest atmospheric pressure is February (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in May
Ralston, ND
- Average wind speed in May: 10.1mph
The windiest month (with the highest average wind speed) is October (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (8.6mph).
Average humidity in May
Ralston, ND
- Average humidity in May: 59%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (54%).
Average rainfall in May
Ralston, ND
- Average rainfall in May: 1.81"
The wettest month (with the highest rainfall) is June (2.52").
The driest month (with the least rainfall) is February (0.39").
Average rainfall days in May
Ralston, ND
- Average rainfall days in May: 11.5 days
The month with the highest number of rainy days is June (14 days).
The month with the least rainy days is February (1.3 days).
Average snowfall in May
Ralston, ND
- Average snowfall in May: 0.2"
The month with the highest snowfall is January (2.95").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Ralston, ND
- Average snowfall days in May: 0.5 days
The month with the highest number of snowfall days is January (12 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Ralston, ND
- Average daylight in May: 15h and 1min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in May: 9h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The months with the least sunshine are January and December (Average sunshine: 3h and 48min).
Average sunshine days in May
Ralston, ND
- Average sunshine days in May: 17.4 days
The month with the most sunshine days is October (21 days).
The month with the least sunshine days is June (13.6 days).
Average UV index in May
Ralston, ND
- Average UV index in May: 4
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in May
Ralston, ND
- Average cloud cover in May: 37
The month with the most cloud cover is February (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in May
Ralston, 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).
Ralston, North Dakota, USA
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