May weather forecastWillard, MT
May
Weather in May
The last month of the spring, May, is a refreshing month in Willard, Montana, with an average temperature ranging between max 63.5°F (17.5°C) and min 45.3°F (7.4°C).Temperature
Noticing a change, the average high-temperature during May moves from April's fresh 51.8°F (11°C) to a comfortable 63.5°F (17.5°C). Throughout May, an average low-temperature of 45.3°F (7.4°C) is expected.Humidity
The average relative humidity in May in Willard is 60%.Rainfall
The month with the most rainfall is May, when the rain falls for 15.7 days and typically aggregates up to 2.6" (66mm) of precipitation.Snowfall
January through May, September through December are months with snowfall in Willard. May is the last month it regularly snows in Willard. During 1.7 snowfall days, in May, Willard aggregates 1.38" (35mm) of snow. In Willard, during the entire year, snow falls for 62.4 days and aggregates up to 21.97" (558mm) of snow.Daylight
The average length of the day in May is 15h and 0min.On the first day of May in Willard, sunrise is at 5:42 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 5:09 am and sunset at 8:41 pm MDT.
Sunshine
The average sunshine in May is 9.7h.UV index
In Willard, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index of 5 in May interprets into the following recommendations:
Take necessary precautions - Protection from skin and eye injury is mandatory. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Willard, MT
- Average high temperature in May: 63.5°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (26.1°F).
- Average low temperature in May: 45.3°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).
Average pressure in May
Willard, MT
- Average pressure in May: 29.91"Hg
The months with the highest atmospheric pressure are January and February (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in May
Willard, MT
- Average wind speed in May: 11.1mph
The windiest months (with the highest average wind speed) are April and October (11.9mph).
The calmest months (with the lowest average wind speed) are July and August (10.1mph).
Average humidity in May
Willard, MT
- Average humidity in May: 60%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (46%).
Average rainfall in May
Willard, MT
- Average rainfall in May: 2.6"
The wettest month (with the highest rainfall) is May (2.6").
The driest months (with the least rainfall) are January and December (0.55").
Average rainfall days in May
Willard, MT
- Average rainfall days in May: 15.7 days
The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is January (3.1 days).
Average snowfall in May
Willard, MT
- Average snowfall in May: 1.38"
The month with the highest snowfall is February (3.86").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Willard, MT
- Average snowfall days in May: 1.7 days
The month with the highest number of snowfall days is February (12 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in May /
Average sunshine in May
Willard, MT
- Average daylight in May: 15h and 0min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in May: 9h and 42min
The months with the most sunshine are July and August (Average sunshine: 11h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days in May
Willard, MT
- Average sunshine days in May: 12.3 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is June (11.9 days).
Average UV index in May
Willard, 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 and December (UV index 1).
Average cloud cover in May
Willard, MT
- Average cloud cover in May: 36
The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are July and August (Cloud cover 18).
Average visibility in May
Willard, 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).





