May weather forecastCorette, MT
May
Weather in May
The last month of the spring, May, is a chilly month in Corette, Montana, with an average temperature fluctuating between 28.9°F (-1.7°C) and 49.8°F (9.9°C).Temperature
The beginning of May signals a rise in the average high-temperature, moving from an icy 37.2°F (2.9°C) in April to a frosty 49.8°F (9.9°C). Corette encounters an average low-temperature of 28.9°F (-1.7°C) during May nights.Humidity
In May, the average relative humidity is 76%.Rainfall
May is the month with the most rainfall. Rain falls for 17.4 days and accumulates 2.8" (71mm) of precipitation.Snowfall
Months with snowfall are January through July, September through December. In May, it is snowing for 10.3 days. Throughout May, 8.23" (209mm) of snow is accumulated. In Corette, during the entire year, snow falls for 159.3 days and aggregates up to 120.47" (3060mm) of snow.Daylight
In May, the average length of the day in Corette is 14h and 50min.On the first day of May, sunrise is at 6:13 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 5:42 am and sunset at 9:02 pm MDT.
Sunshine
The average sunshine in May is 9.6h.UV index
The average daily maximum UV index in May is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: In May, the maximum UV index of 3 transforms into these recommendations:
Take precautions - Protection against sunburn is recommended. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Corette, MT
- Average high temperature in May: 49.8°F
The warmest month (with the highest average high temperature) is July (72.9°F).
The month with the lowest average high temperature is December (20.1°F).
- Average low temperature in May: 28.9°F
The month with the highest average low temperature is August (43.7°F).
The coldest month (with the lowest average low temperature) is December (4.8°F).
Average pressure in May
Corette, MT
- Average pressure in May: 29.94"Hg
The month with the highest atmospheric pressure is January (30.24"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Corette, MT
- Average wind speed in May: 6mph
The windiest month (with the highest average wind speed) is June (6.8mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).
Average humidity in May
Corette, MT
- Average humidity in May: 76%
The month with the highest relative humidity is February (95%).
The month with the lowest relative humidity is August (50%).
Average rainfall in May
Corette, MT
- Average rainfall in May: 2.8"
The wettest month (with the highest rainfall) is May (2.8").
The driest month (with the least rainfall) is July (0.91").
Average rainfall days in May
Corette, MT
- Average rainfall days in May: 17.4 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (2.2 days).
Average snowfall in May
Corette, MT
- Average snowfall in May: 8.23"
The month with the highest snowfall is February (17.83").
The month with the least snowfall is August (0").
Average snowfall days in May
Corette, MT
- Average snowfall days in May: 10.3 days
The month with the highest number of snowfall days is March (24.4 days).
The months with the least snowfall days are July and August (0.2 days).
Average daylight in May /
Average sunshine in May
Corette, MT
- Average daylight in May: 14h and 48min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in May: 9h and 36min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The months with the least sunshine are January, February and December (Average sunshine: 3h and 18min).
Average sunshine days in May
Corette, MT
- Average sunshine days in May: 5.5 days
The months with the most sunshine days are July and September (14.7 days).
The month with the least sunshine days is February (5.3 days).
Average UV index in May
Corette, MT
- Average UV index in May: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 1).
Average cloud cover in May
Corette, MT
- Average cloud cover in May: 39
The month with the most cloud cover is February (Cloud cover 76).
The month with the least cloud cover is July (Cloud cover 16).
Average visibility in May
Corette, MT
- Average visibility in May: 5mi
The months with the highest visibility are June, July, August and September (6mi).
The months with the lowest visibility are January, February, March and December (3mi).





