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
The shift from April to May brings an increase in the average high-temperature, moving from a chilly 46.6°F (8.1°C) to a mild 59.4°F (15.2°C). May nights report a substantial dip from daytime highs to an average of 35.2°F (1.8°C).Humidity
In May, the average relative humidity is 69%.Rainfall
In Alberton, in May, it is raining for 15.5 days, with typically 1.54" (39mm) of accumulated precipitation. Throughout the year, there are 141.4 rainfall days, and 16.5" (419mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. May is the last month it regularly snows. During 0.9 snowfall days, in May, Alberton aggregates 0.28" (7mm) of snow. Throughout the year, there are 81.4 snowfall days, and 42.91" (1090mm) of snow is accumulated.Daylight
In Alberton, the average length of the day in May is 15h and 5min.On the first day of the month, sunrise is at 6:20 am and sunset at 8:49 pm. On the last day of May, sunrise is at 5:46 am and sunset at 9:24 pm MDT.
Sunshine
The average sunshine in May is 10.2h.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 exposure to the Sun's UV radiation for the ordinary person.Note: In May, a daily UV index of 4 turns into the following recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Alberton in May?
What is the average humidity in May?
How much does it rain in May?
What is the last month it snows?
What is the average length of the day in May?
What time are sunrise and sunset in May?
How many hours of sunshine does Alberton have in May?
What is the UV index reading in May?
Average temperature in May
Alberton, MT
- Average high temperature in May: 59.4°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is December (27.9°F).
- Average low temperature in May: 35.2°F
The month with the highest average low temperature is August (48°F).
The coldest month (with the lowest average low temperature) is December (15.8°F).
Average pressure in May
Alberton, MT
- Average pressure in May: 29.96"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Alberton, MT
- Average wind speed in May: 4.4mph
The windiest month (with the highest average wind speed) is April (4.9mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in May
Alberton, MT
- Average humidity in May: 69%
The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are July and August (51%).
Average rainfall in May
Alberton, MT
- Average rainfall in May: 1.54"
The wettest month (with the highest rainfall) is April (1.97").
The driest month (with the least rainfall) is July (0.47").
Average rainfall days in May
Alberton, MT
- Average rainfall days in May: 15.5 days
The month with the highest number of rainy days is April (16.7 days).
The months with the least rainy days are July and August (6.7 days).
Average snowfall in May
Alberton, MT
- Average snowfall in May: 0.28"
The month with the highest snowfall is February (10.75").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Alberton, MT
- Average snowfall days in May: 0.9 days
The month with the highest number of snowfall days is February (16.2 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Alberton, MT
- Average daylight in May: 15h and 1min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in May: 10h and 1min
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 48min).
Average sunshine days in May
Alberton, MT
- Average sunshine days in May: 13 days
The month with the most sunshine days is July (22.5 days).
The months with the least sunshine days are February and April (9.2 days).
Average UV index in May
Alberton, 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, November and December (UV index 1).
Average cloud cover in May
Alberton, MT
- Average cloud cover in May: 36
The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 14).
Average visibility in May
Alberton, MT
- Average visibility in May: 6mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March and December (4mi).
Alberton, Montana, USA
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