May weather forecastRed Rock Point, MT
May
Weather in May
The last month of the spring, May, is a mild month in Red Rock Point, Montana, with temperature in the range of an average low of 35.2°F (1.8°C) and an average high of 59.5°F (15.3°C).Temperature
The shift into May brings an increase in the average high-temperature, moving from a frosty 46.6°F (8.1°C) in April to a moderate 59.5°F (15.3°C). Red Rock Point's nighttime temperatures in May reflect a stark contrast to the day's highs, falling to an average low of 35.2°F (1.8°C).Humidity
In Red Rock Point, the average relative humidity in May is 68%.Rainfall
In Red Rock Point, during May, the rain falls for 13.8 days and regularly aggregates up to 1.1" (28mm) of precipitation. Throughout the year, there are 126.4 rainfall days, and 11.22" (285mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through December. May is the last month it regularly snows. During 1.5 snowfall days, in May, Red Rock Point aggregates 0.55" (14mm) of snow. In Red Rock Point, during the entire year, snow falls for 97 days and aggregates up to 33.86" (860mm) of snow.Daylight
The average length of the day in May is 15h and 17min.On the first day of May, sunrise is at 6:13 am and sunset at 8:51 pm. On the last day of the month, sunrise is at 5:36 am and sunset at 9:29 pm MDT.
Sunshine
In Red Rock Point, the average sunshine in May is 10.4h.UV index
In May, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: The daily high UV index of 4 during May translates into the following recommendations:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Red Rock Point, MT
- Average high temperature in May: 59.5°F
The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is December (25.7°F).
- Average low temperature in May: 35.2°F
The month with the highest average low temperature is August (45.5°F).
The coldest month (with the lowest average low temperature) is February (13.5°F).
Average pressure in May
Red Rock Point, MT
- Average pressure in May: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Red Rock Point, MT
- Average wind speed in May: 4.4mph
The windiest month (with the highest average wind speed) is April (4.6mph).
The calmest months (with the lowest average wind speed) are August and December (3.7mph).
Average humidity in May
Red Rock Point, MT
- Average humidity in May: 68%
The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is August (55%).
Average rainfall in May
Red Rock Point, MT
- Average rainfall in May: 1.1"
The wettest month (with the highest rainfall) is June (1.42").
The driest month (with the least rainfall) is August (0.43").
Average rainfall days in May
Red Rock Point, MT
- Average rainfall days in May: 13.8 days
The month with the highest number of rainy days is April (15.8 days).
The month with the least rainy days is August (6.3 days).
Average snowfall in May
Red Rock Point, MT
- Average snowfall in May: 0.55"
The month with the highest snowfall is January (7.72").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Red Rock Point, MT
- Average snowfall days in May: 1.5 days
The month with the highest number of snowfall days is December (19.1 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in May /
Average sunshine in May
Red Rock Point, MT
- Average daylight in May: 15h and 18min
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 24min).
- Average sunshine in May: 10h and 24min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in May
Red Rock Point, MT
- Average sunshine days in May: 14.2 days
The month with the most sunshine days is July (21.5 days).
The month with the least sunshine days is March (7.7 days).
Average UV index in May
Red Rock Point, MT
- 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
Red Rock Point, MT
- Average cloud cover in May: 33
The month with the most cloud cover is January (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 15).
Average visibility in May
Red Rock Point, MT
- Average visibility in May: 6mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (3mi).





