May weather forecastRadersburg, MT
May
Weather in May
May, the last month of the spring in Radersburg, is a refreshing month, with an average temperature fluctuating between 37.9°F (3.3°C) and 62.6°F (17°C).Temperature
May's onset is marked by a temperature increase, moving from a fresh 50.4°F (10.2°C) in April to an enjoyable 62.6°F (17°C). Radersburg sees a major change from daytime highs, with the nighttime temperature dipping to a wintry 37.9°F (3.3°C) on average during May.Humidity
In Radersburg, the average relative humidity in May is 60%.Rainfall
In Radersburg, in May, during 15.9 rainfall days, 1.42" (36mm) of precipitation is typically accumulated. Throughout the year, there are 134.2 rainfall days, and 11.34" (288mm) of precipitation is accumulated.Snowfall
Months with snowfall in Radersburg are January through June, September through December. In May, it is snowing for 1.3 days. Throughout May, 0.83" (21mm) of snow is accumulated. In Radersburg, during the entire year, snow falls for 79.6 days and aggregates up to 30.08" (764mm) of snow.Daylight
The average length of the day in May is 15h and 0min.On the first day of the month, sunrise is at 6:11 am and sunset at 8:35 pm. On the last day of May, sunrise is at 5:38 am and sunset at 9:10 pm MDT.
Sunshine
In Radersburg, Montana, the average sunshine in May is 10.7h.UV index
In Radersburg, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 4 during May translates into these guidelines:
Act with care - Obligation to protect against skin and eye damage is highlighted. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Radersburg, MT
- Average high temperature in May: 62.6°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is December (28°F).
- Average low temperature in May: 37.9°F
The month with the highest average low temperature is August (50.5°F).
The coldest month (with the lowest average low temperature) is December (12.7°F).
Average pressure in May
Radersburg, MT
- Average pressure in May: 29.94"Hg
The months with the highest atmospheric pressure are January and December (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in May
Radersburg, MT
- Average wind speed in May: 5mph
The windiest month (with the highest average wind speed) is April (5.5mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in May
Radersburg, MT
- Average humidity in May: 60%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (44%).
Average rainfall in May
Radersburg, MT
- Average rainfall in May: 1.42"
The wettest month (with the highest rainfall) is June (1.57").
The driest month (with the least rainfall) is August (0.51").
Average rainfall days in May
Radersburg, MT
- Average rainfall days in May: 15.9 days
The month with the highest number of rainy days is April (16.5 days).
The month with the least rainy days is August (7.6 days).
Average snowfall in May
Radersburg, MT
- Average snowfall in May: 0.83"
The month with the highest snowfall is February (6.02").
The months with the least snowfall are July and August (0").
Average snowfall days in May
Radersburg, MT
- Average snowfall days in May: 1.3 days
The month with the highest number of snowfall days is February (16.5 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in May /
Average sunshine in May
Radersburg, MT
- Average daylight in May: 15h and 0min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in May: 10h and 42min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 54min).
Average sunshine days in May
Radersburg, MT
- Average sunshine days in May: 10.5 days
The month with the most sunshine days is September (18.7 days).
The month with the least sunshine days is April (9.3 days).
Average UV index in May
Radersburg, MT
- 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 December (UV index 1).
Average cloud cover in May
Radersburg, MT
- Average cloud cover in May: 30
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in May
Radersburg, MT
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).





