May weather forecastDe Borgia, MT
May
Weather in May
The last month of the spring, May, is a mild month in De Borgia, Montana, with an average temperature ranging between max 60.1°F (15.6°C) and min 34.3°F (1.3°C).Temperature
Noticing a change, the average high-temperature during May moves from April's frosty 47.1°F (8.4°C) to a moderate 60.1°F (15.6°C). In stark contrast to the day's heat, the temperature in De Borgia dips to an average of 34.3°F (1.3°C) during May nights.Humidity
In May, the average relative humidity is 71%.Rainfall
In May, in De Borgia, the rain falls for 14.4 days. Throughout May, 1.57" (40mm) of precipitation is accumulated. In De Borgia, during the entire year, the rain falls for 152.1 days and collects up to 22.09" (561mm) of precipitation.Snowfall
Months with snowfall in De Borgia are January through May, September through December. May is the last month it regularly snows in De Borgia. During 0.4 snowfall days, in May, De Borgia aggregates 0.12" (3mm) of snow. Throughout the year, in De Borgia, there are 90.2 snowfall days, and 58.15" (1477mm) of snow is accumulated.Daylight
The average length of the day in May is 15h and 8min.On the first day of the month, sunrise is at 6:23 am and sunset at 8:53 pm. On the last day of May, in De Borgia, sunrise is at 5:48 am and sunset at 9:29 pm MDT.
Sunshine
The average sunshine in May is 9.8h.UV index
In May, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In May, the maximum UV index of 4 suggests this advice:
Take precautions - Protection against sunburn is recommended. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Experience reduced UV exposure by about half when donning a wide-brim hat. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
De Borgia, MT
- Average high temperature in May: 60.1°F
The warmest months (with the highest average high temperature) are July and August (78.8°F).
The month with the lowest average high temperature is December (28.9°F).
- Average low temperature in May: 34.3°F
The month with the highest average low temperature is August (45.7°F).
The coldest month (with the lowest average low temperature) is December (16.2°F).
Average pressure in May
De Borgia, 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
De Borgia, 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 December (4mph).
Average humidity in May
De Borgia, MT
- Average humidity in May: 71%
The month with the highest relative humidity is January (93%).
The months with the lowest relative humidity are July and August (53%).
Average rainfall in May
De Borgia, MT
- Average rainfall in May: 1.57"
The wettest month (with the highest rainfall) is January (3.11").
The driest month (with the least rainfall) is August (0.39").
Average rainfall days in May
De Borgia, MT
- Average rainfall days in May: 14.4 days
The month with the highest number of rainy days is March (19.9 days).
The month with the least rainy days is August (5.9 days).
Average snowfall in May
De Borgia, MT
- Average snowfall in May: 0.12"
The month with the highest snowfall is February (15.12").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
De Borgia, MT
- Average snowfall days in May: 0.4 days
The month with the highest number of snowfall days is December (20.4 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
De Borgia, MT
- Average daylight in May: 15h and 6min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in May: 9h and 48min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in May
De Borgia, MT
- Average sunshine days in May: 14.2 days
The months with the most sunshine days are July and August (23.3 days).
The month with the least sunshine days is March (5.8 days).
Average UV index in May
De Borgia, 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, November and December (UV index 1).
Average cloud cover in May
De Borgia, MT
- Average cloud cover in May: 38
The month with the most cloud cover is February (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 15).
Average visibility in May
De Borgia, MT
- Average visibility in May: 5mi
The months with the highest visibility are June, July, August and September (6mi).
The months with the lowest visibility are January, February and December (3mi).
