Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
May's arrival in Libby, Montana, coincides with a rise in the average high-temperature, moving from April's chilly 46.2°F (7.9°C) to a moderate 59.5°F (15.3°C). A noticeable downturn in temperature characterizes the May nights, averaging at a cold 36.1°F (2.3°C).Humidity
In May, the average relative humidity is 69%.Rainfall
In Libby, in May, during 15.8 rainfall days, 1.73" (44mm) of precipitation is typically accumulated. In Libby, during the entire year, the rain falls for 138.8 days and collects up to 18.15" (461mm) of precipitation.Snowfall
January through May, September through December are months with snowfall in Libby. May is the last month it regularly snows. During 0.9 snowfall days, in May, Libby aggregates 0.2" (5mm) of snow. In Libby, Montana, during the entire year, snow falls for 91.8 days and aggregates up to 49.33" (1253mm) of snow.Daylight
In May, the average length of the day in Libby is 15h and 15min.On the first day of May in Libby, sunrise is at 6:21 am and sunset at 8:57 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 9:34 pm MDT.
Sunshine
In Libby, Montana, the average sunshine in May is 9.8h.UV index
The average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The average daily UV index of 4 in May transforms into the following instructions:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Libby in May?
What is the average humidity in May in Libby?
How many days does it rain in May in Libby?
What is the last month it snows in Libby?
How many hours of daylight does Libby have in May?
When are sunrise and sunset in May in Libby?
How long on average sun shines in May in Libby?
What is the UV index reading in May in Libby?
Average temperature in May
Libby, MT
- Average high temperature in May: 59.5°F
The warmest month (with the highest average high temperature) is August (77.5°F).
The month with the lowest average high temperature is December (27.1°F).
- Average low temperature in May: 36.1°F
The month with the highest average low temperature is August (47.3°F).
The coldest month (with the lowest average low temperature) is December (15.1°F).
Average pressure in May
Libby, 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
Libby, MT
- Average wind speed in May: 4.3mph
The windiest months (with the highest average wind speed) are April and June (4.5mph).
The calmest month (with the lowest average wind speed) is December (3.5mph).
Average humidity in May
Libby, MT
- Average humidity in May: 69%
The month with the highest relative humidity is January (94%).
The month with the lowest relative humidity is August (53%).
Average rainfall in May
Libby, MT
- Average rainfall in May: 1.73"
The wettest month (with the highest rainfall) is December (2.24").
The driest month (with the least rainfall) is August (0.43").
Average rainfall days in May
Libby, MT
- Average rainfall days in May: 15.8 days
The month with the highest number of rainy days is April (17.5 days).
The month with the least rainy days is August (5.9 days).
Average snowfall in May
Libby, MT
- Average snowfall in May: 0.2"
The month with the highest snowfall is January (11.34").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Libby, MT
- Average snowfall days in May: 0.9 days
The month with the highest number of snowfall days is December (20 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Libby, MT
- Average daylight in May: 15h and 1min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in May: 9h and 5min
The months with the most sunshine are July and August (Average sunshine: 11h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in May
Libby, MT
- Average sunshine days in May: 13.3 days
The month with the most sunshine days is August (22.8 days).
The month with the least sunshine days is February (7.4 days).
Average UV index in May
Libby, MT
- Average UV index in May: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in May
Libby, MT
- Average cloud cover in May: 37
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 15).
Average visibility in May
Libby, MT
- Average visibility in May: 6mi
The months with the highest visibility are May, June, July, August and September (6mi).
The month with the lowest visibility is January (2mi).
Libby, Montana, USA
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