May weather forecastPackers Roost, MT
May
Weather in May
May, the last month of the spring in Packers Roost, is a cool month, with temperature in the range of an average low of 32.4°F (0.2°C) and an average high of 53.4°F (11.9°C).Temperature
With the beginning of May, Packers Roost's average high-temperature sees an increase, transitioning from a wintry 41.4°F (5.2°C) in April to a fresh 53.4°F (11.9°C). In Packers Roost, May is marked by an average low-temperature of 32.4°F (0.2°C).Humidity
In May, the average relative humidity is 74%.Rainfall
In May, in Packers Roost, the rain falls for 16.3 days. Throughout May, 2.01" (51mm) of precipitation is accumulated. Throughout the year, in Packers Roost, there are 118.6 rainfall days, and 20.75" (527mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through June, September through December. In May, in Packers Roost, Montana, it is snowing for 4 days. Throughout May, 2.32" (59mm) of snow is accumulated. Throughout the year, in Packers Roost, there are 128.7 snowfall days, and 92.13" (2340mm) of snow is accumulated.Daylight
In May, the average length of the day in Packers Roost is 15h and 17min.On the first day of May in Packers Roost, sunrise is at 6:13 am and sunset at 8:51 pm. On the last day of the month, sunrise is at 5:36 am and sunset at 9:29 pm MDT.
Sunshine
The average sunshine in May in Packers Roost is 9.5h.UV index
The average daily maximum UV index in May in Packers Roost is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: In May, a regular UV index of 3 translates into these guidelines:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Packers Roost, MT
- Average high temperature in May: 53.4°F
The warmest month (with the highest average high temperature) is July (73°F).
The month with the lowest average high temperature is December (23.2°F).
- Average low temperature in May: 32.4°F
The months with the highest average low temperature are July and August (44.2°F).
The coldest month (with the lowest average low temperature) is February (10.9°F).
Average pressure in May
Packers Roost, MT
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in May
Packers Roost, MT
- Average wind speed in May: 5.7mph
The windiest month (with the highest average wind speed) is November (7mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in May
Packers Roost, MT
- Average humidity in May: 74%
The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is August (56%).
Average rainfall in May
Packers Roost, MT
- Average rainfall in May: 2.01"
The wettest month (with the highest rainfall) is January (2.56").
The driest month (with the least rainfall) is August (0.71").
Average rainfall days in May
Packers Roost, MT
- Average rainfall days in May: 16.3 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in May
Packers Roost, MT
- Average snowfall in May: 2.32"
The month with the highest snowfall is January (20.16").
The months with the least snowfall are July and August (0").
Average snowfall days in May
Packers Roost, MT
- Average snowfall days in May: 4 days
The month with the highest number of snowfall days is December (22.8 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in May /
Average sunshine in May
Packers Roost, MT
- Average daylight in May: 15h and 18min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in May: 9h and 30min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in May
Packers Roost, MT
- Average sunshine days in May: 10.8 days
The month with the most sunshine days is August (19.6 days).
The month with the least sunshine days is February (7.2 days).
Average UV index in May
Packers Roost, 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, November and December (UV index 1).
Average cloud cover in May
Packers Roost, MT
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 17).
Average visibility in May
Packers Roost, 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).





