May weather forecastDunkirk, MT
May
Weather in May
May, the last month of the spring in Dunkirk, is a refreshing month, with an average temperature varying between 62.4°F (16.9°C) and 44.4°F (6.9°C).Temperature
The onset of May brings a temperature shift, with the average high-temperature moving from a fresh 52.2°F (11.2°C) in April to a refreshing 62.4°F (16.9°C). Throughout May, Dunkirk anticipates an average low-temperature of 44.4°F (6.9°C).Humidity
The average relative humidity in May is 53%.Rainfall
In Dunkirk, during May, the rain falls for 13.9 days and regularly aggregates up to 1.54" (39mm) of precipitation. In Dunkirk, during the entire year, the rain falls for 84.2 days and collects up to 9.29" (236mm) of precipitation.Snowfall
January through May, September through December are months with snowfall in Dunkirk. May is the last month it regularly snows. During 1.1 snowfall days, in May, Dunkirk aggregates 1.26" (32mm) of snow. In Dunkirk, during the entire year, snow falls for 53.7 days and aggregates up to 20.47" (520mm) of snow.Daylight
The average length of the day in May in Dunkirk is 15h and 16min.On the first day of the month, sunrise is at 6:05 am and sunset at 8:41 pm. On the last day of May, in Dunkirk, sunrise is at 5:29 am and sunset at 9:19 pm MDT.
Sunshine
In May, the average sunshine in Dunkirk, Montana, is 10.1h.UV index
In May, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: In May, the UV index of 4 transforms into the following advice:
Adopt protective measures - It is advised to guard against sun damage. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Tightly woven clothing, when worn loosely, shields effectively against the Sun. 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
Average temperature in May
Dunkirk, MT
- Average high temperature in May: 62.4°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is December (27.7°F).
- Average low temperature in May: 44.4°F
The month with the highest average low temperature is August (58.3°F).
The coldest month (with the lowest average low temperature) is December (15.4°F).
Average pressure in May
Dunkirk, MT
- Average pressure in May: 29.93"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in May
Dunkirk, MT
- Average wind speed in May: 10.1mph
The windiest month (with the highest average wind speed) is April (11mph).
The calmest month (with the lowest average wind speed) is August (8.7mph).
Average humidity in May
Dunkirk, MT
- Average humidity in May: 53%
The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is August (40%).
Average rainfall in May
Dunkirk, MT
- Average rainfall in May: 1.54"
The wettest month (with the highest rainfall) is June (2.01").
The driest months (with the least rainfall) are January and December (0.39").
Average rainfall days in May
Dunkirk, MT
- Average rainfall days in May: 13.9 days
The month with the highest number of rainy days is May (13.9 days).
The month with the least rainy days is February (3.1 days).
Average snowfall in May
Dunkirk, MT
- Average snowfall in May: 1.26"
The month with the highest snowfall is February (4.17").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Dunkirk, MT
- Average snowfall days in May: 1.1 days
The month with the highest number of snowfall days is February (10.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in May /
Average sunshine in May
Dunkirk, 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 24min).
- Average sunshine in May: 10h and 6min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in May
Dunkirk, MT
- Average sunshine days in May: 15.5 days
The month with the most sunshine days is September (22.2 days).
The month with the least sunshine days is April (14.7 days).
Average UV index in May
Dunkirk, 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 January, February, March, October, November and December (UV index 2).
Average cloud cover in May
Dunkirk, MT
- Average cloud cover in May: 34
The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 15).
Average visibility in May
Dunkirk, 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).





