May weather forecastBirney, MT
May
Weather in May
The last month of the spring, May, is a comfortable month in Birney, Montana, with an average temperature fluctuating between 43.5°F (6.4°C) and 63.7°F (17.6°C).Temperature
With the onset of May, the average high-temperature slightly shifts from April's cool 53.1°F (11.7°C) to a comfortable 63.7°F (17.6°C). Throughout May, Birney witnesses a nighttime temperature average of 43.5°F (6.4°C).Humidity
In May, the average relative humidity is 61%.Rainfall
The month with the most rainfall is May, when the rain falls for 18 days and typically aggregates up to 2.64" (67mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. May is the last month it regularly snows in Birney. During 1.3 snowfall days, in May, Birney aggregates 0.87" (22mm) of snow. Throughout the year, there are 65.3 snowfall days, and 28.82" (732mm) of snow is accumulated.Daylight
In May, the average length of the day is 14h and 55min.On the first day of May, sunrise is at 5:53 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 5:21 am and sunset at 8:46 pm MDT.
Sunshine
The average sunshine in May is 10.5h.UV index
In Birney, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: A typical high UV index of 5 in May suggests the following recommendations:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Minimize direct exposure to the Sun during midday when its radiation is at its peak. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Birney, MT
- Average high temperature in May: 63.7°F
The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is December (31.1°F).
- Average low temperature in May: 43.5°F
The month with the highest average low temperature is July (61.5°F).
The coldest months (with the lowest average low temperature) are January and February (16.2°F).
Average pressure in May
Birney, MT
- Average pressure in May: 29.91"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in May
Birney, MT
- Average wind speed in May: 8.6mph
The windiest month (with the highest average wind speed) is April (9.1mph).
The calmest months (with the lowest average wind speed) are July and December (6.8mph).
Average humidity in May
Birney, MT
- Average humidity in May: 61%
The months with the highest relative humidity are January and February (79%).
The month with the lowest relative humidity is August (40%).
Average rainfall in May
Birney, MT
- Average rainfall in May: 2.64"
The wettest month (with the highest rainfall) is May (2.64").
The driest month (with the least rainfall) is December (0.67").
Average rainfall days in May
Birney, MT
- Average rainfall days in May: 18 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in May
Birney, MT
- Average snowfall in May: 0.87"
The month with the highest snowfall is February (5.2").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Birney, MT
- Average snowfall days in May: 1.3 days
The month with the highest number of snowfall days is February (14.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Birney, 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 months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 42min).
Average sunshine days in May
Birney, MT
- Average sunshine days in May: 9.6 days
The month with the most sunshine days is September (18.2 days).
The month with the least sunshine days is May (9.6 days).
Average UV index in May
Birney, MT
- Average UV index in May: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in May
Birney, MT
- Average cloud cover in May: 31
The month with the most cloud cover is February (Cloud cover 41).
The months with the least cloud cover are July and August (Cloud cover 14).
Average visibility in May
Birney, 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).
