May weather forecastRoscoe, MT
May
Weather in May
The last month of the spring, May, is a comfortable month in Roscoe, Montana, with an average temperature varying between 61°F (16.1°C) and 41.4°F (5.2°C).Temperature
In Roscoe, the onset of May comes with an increased average high-temperature, moving from April's cool 51.3°F (10.7°C) to an enjoyable 61°F (16.1°C). Throughout the month of May, Roscoe observes an average nighttime temperature of 41.4°F (5.2°C).Humidity
In Roscoe, the average relative humidity in May is 62%.Rainfall
The month with the most rainfall is May, when the rain falls for 16.3 days and typically aggregates up to 2.09" (53mm) of precipitation.Snowfall
January through June, September through December are months with snowfall. In Roscoe, in May, during 2.4 snowfall days, 2.83" (72mm) of snow is typically accumulated. Throughout the year, there are 61.5 snowfall days, and 41.77" (1061mm) of snow is accumulated.Daylight
In May, the average length of the day in Roscoe, Montana, is 14h and 55min.On the first day of the month, sunrise is at 6:04 am and sunset at 8:25 pm. On the last day of May, sunrise is at 5:33 am and sunset at 8:58 pm MDT.
Sunshine
In May, the average sunshine is 10.5h.UV index
The average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily high UV index of 4 during May translates into the following recommendations:
Prioritize safety - Suggestions to prevent sun damage are offered. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. On your guard! Snow's reflection 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
Roscoe, MT
- Average high temperature in May: 61°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is December (30.7°F).
- Average low temperature in May: 41.4°F
The months with the highest average low temperature are July and August (57.2°F).
The coldest month (with the lowest average low temperature) is February (16.7°F).
Average pressure in May
Roscoe, MT
- Average pressure in May: 29.93"Hg
The months with the highest atmospheric pressure are January and December (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in May
Roscoe, MT
- Average wind speed in May: 7.1mph
The windiest month (with the highest average wind speed) is January (8.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in May
Roscoe, MT
- Average humidity in May: 62%
The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is August (41%).
Average rainfall in May
Roscoe, MT
- Average rainfall in May: 2.09"
The wettest month (with the highest rainfall) is May (2.09").
The driest month (with the least rainfall) is January (0.51").
Average rainfall days in May
Roscoe, MT
- Average rainfall days in May: 16.3 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (4 days).
Average snowfall in May
Roscoe, MT
- Average snowfall in May: 2.83"
The month with the highest snowfall is February (6.81").
The months with the least snowfall are July and August (0").
Average snowfall days in May
Roscoe, MT
- Average snowfall days in May: 2.4 days
The month with the highest number of snowfall days is February (10.8 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in May /
Average sunshine in May
Roscoe, MT
- Average daylight in May: 14h and 54min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in May: 10h and 30min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 12min).
Average sunshine days in May
Roscoe, MT
- Average sunshine days in May: 10.5 days
The month with the most sunshine days is December (19.7 days).
The month with the least sunshine days is May (10.5 days).
Average UV index in May
Roscoe, 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, March, November and December (UV index 2).
Average cloud cover in May
Roscoe, MT
- Average cloud cover in May: 32
The month with the most cloud cover is February (Cloud cover 38).
The months with the least cloud cover are July and August (Cloud cover 15).
Average visibility in May
Roscoe, MT
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
