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 signals a shift in the average high-temperature, moving from April's frosty 44.6°F (7°C) to a refreshing 56.3°F (13.5°C). Nighttime temperature lowers to an average of 35.2°F (1.8°C) in May.Humidity
In May, the average relative humidity is 61%.Rainfall
In Dillon, in May, during 15.3 rainfall days, 1.26" (32mm) of precipitation is typically accumulated. In Dillon, during the entire year, the rain falls for 126.7 days and collects up to 10.35" (263mm) of precipitation.Snowfall
Months with snowfall are January through June, September through December. In Dillon, Montana, in May, during 1.9 snowfall days, 1.18" (30mm) of snow is typically accumulated. Throughout the year, there are 81.2 snowfall days, and 29.76" (756mm) of snow is accumulated.Daylight
In May, the average length of the day is 14h and 54min.On the first day of May in Dillon, sunrise is at 6:17 am and sunset at 8:37 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 9:10 pm MDT.
Sunshine
In Dillon, the average sunshine in May is 10.9h.UV index
The average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: In May, an average UV index of 4 transforms into the following instructions:
Adopt protective measures - Suggestions to resist sunburn are offered. Direct Sun exposure should be minimized especially during midday when radiation is most intense. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature?
What is the average humidity in May?
How much does it rain in Dillon in May?
How much does it snow in May?
What is the average length of the day in May in Dillon?
When is the sunrise / sunset in May?
How many hours of sunshine does Dillon have in May?
How high is the UV index in May?
Average temperature in May
Dillon, MT
- Average high temperature in May: 56.3°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is December (25.2°F).
- Average low temperature in May: 35.2°F
The month with the highest average low temperature is July (47.5°F).
The coldest month (with the lowest average low temperature) is December (10.6°F).
Average pressure in May
Dillon, MT
- Average pressure in May: 29.94"Hg
The month with the highest atmospheric pressure is January (30.24"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Dillon, MT
- Average wind speed in May: 5.7mph
The windiest month (with the highest average wind speed) is November (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in May
Dillon, MT
- Average humidity in May: 61%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are July and August (45%).
Average rainfall in May
Dillon, MT
- Average rainfall in May: 1.26"
The wettest month (with the highest rainfall) is June (1.5").
The driest month (with the least rainfall) is January (0.51").
Average rainfall days in May
Dillon, MT
- Average rainfall days in May: 15.3 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is February (7.7 days).
Average snowfall in May
Dillon, MT
- Average snowfall in May: 1.18"
The month with the highest snowfall is February (5.51").
The months with the least snowfall are July and August (0").
Average snowfall days in May
Dillon, MT
- Average snowfall days in May: 1.9 days
The month with the highest number of snowfall days is February (14.1 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in May /
Average sunshine in May
Dillon, MT
- Average daylight in May: 14h and 5min
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 5min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).
Average sunshine days in May
Dillon, MT
- Average sunshine days in May: 11.5 days
The month with the most sunshine days is July (18.2 days).
The month with the least sunshine days is April (10.1 days).
Average UV index in May
Dillon, MT
- Average UV index in May: 4
The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in May
Dillon, MT
- Average cloud cover in May: 28
The month with the most cloud cover is February (Cloud cover 42).
The months with the least cloud cover are July and August (Cloud cover 13).
Average visibility in May
Dillon, MT
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
Dillon, Montana, USA
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