May weather forecastCharlo, MT
May
Weather in May
The last month of the spring, May, is a comfortable month in Charlo, Montana, with temperature in the range of an average high of 61°F (16.1°C) and an average low of 36.7°F (2.6°C).Temperature
With the onset of May, Charlo sees a temperature rise, with the average high-temperature moving from April's frosty 48.7°F (9.3°C) to an enjoyable 61°F (16.1°C). Throughout May, Charlo notes a dramatic plunge from the daily high to an average low-temperature of 36.7°F (2.6°C).Humidity
In May, the average relative humidity in Charlo is 67%.Rainfall
In Charlo, in May, it is raining for 14.1 days, with typically 1.26" (32mm) of accumulated precipitation. In Charlo, during the entire year, the rain falls for 129.9 days and collects up to 13.5" (343mm) of precipitation.Snowfall
January through May, September through December are months with snowfall in Charlo. May is the last month it regularly snows in Charlo. During 0.3 snowfall days, in May, Charlo aggregates 0.08" (2mm) of snow. In Charlo, during the entire year, snow falls for 67.1 days and aggregates up to 28.27" (718mm) of snow.Daylight
The average length of the day in May is 15h and 8min.On the first day of May in Charlo, sunrise is at 6:18 am and sunset at 8:49 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 9:25 pm MDT.
Sunshine
In May, the average sunshine is 10.5h.UV index
In May, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 4 during May translates into these guidelines:
Guard yourself - Avoiding sunburn is suggested. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Charlo, MT
- Average high temperature in May: 61°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is December (28.4°F).
- Average low temperature in May: 36.7°F
The month with the highest average low temperature is August (49.5°F).
The coldest month (with the lowest average low temperature) is December (16.7°F).
Average pressure in May
Charlo, MT
- Average pressure in May: 29.96"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Charlo, MT
- Average wind speed in May: 4.3mph
The windiest month (with the highest average wind speed) is April (4.8mph).
The calmest months (with the lowest average wind speed) are January, August and December (3.9mph).
Average humidity in May
Charlo, MT
- Average humidity in May: 67%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (49%).
Average rainfall in May
Charlo, MT
- Average rainfall in May: 1.26"
The wettest month (with the highest rainfall) is June (2.2").
The driest months (with the least rainfall) are July and August (0.63").
Average rainfall days in May
Charlo, MT
- Average rainfall days in May: 14.1 days
The month with the highest number of rainy days is June (15.7 days).
The month with the least rainy days is August (7.4 days).
Average snowfall in May
Charlo, MT
- Average snowfall in May: 0.08"
The month with the highest snowfall is February (6.5").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Charlo, MT
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is December (14.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Charlo, MT
- Average daylight in May: 15h and 6min
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: 10h and 30min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in May
Charlo, MT
- Average sunshine days in May: 15.3 days
The month with the most sunshine days is July (20.8 days).
The month with the least sunshine days is February (11 days).
Average UV index in May
Charlo, 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 February and December (UV index 1).
Average cloud cover in May
Charlo, MT
- Average cloud cover in May: 33
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 14).
Average visibility in May
Charlo, MT
- Average visibility in May: 6mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).
