May weather forecastColumbus, MT
May
Weather in May
Weather in Columbus, Montana, in May indicates clear signs of transition from spring to summer compared to April. May experiences a rainfall peak of 2.6" (66mm), standing as the wettest month of the year. Mornings and evenings can be cool, but the majority of the days are warm - a testament to the impending summer. The length of daylight increases gradually, which means more sunshine. High pressure characterizes this month's weather, leading to largely clear and dry conditions.Temperature
The shift into May is marked by a rise in the average high-temperature, moving from April's cool 51.1°F (10.6°C) to a refreshing 61°F (16.1°C). Throughout May, a steady low-temperature average of 41.5°F (5.3°C) is noted.Humidity
In May, the average relative humidity is 62%.Rainfall
The month with the most rainfall is May, when the rain falls for 17.5 days and typically aggregates up to 2.6" (66mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. May is the last month it regularly snows in Columbus. During 1 snowfall days, in May, Columbus aggregates 0.91" (23mm) of snow. Throughout the year, there are 63.3 snowfall days, and 39.09" (993mm) of snow is accumulated.Daylight
The average length of the day in May is 14h and 56min.On the first day of May, sunrise is at 6:03 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 5:31 am and sunset at 8:58 pm MDT.
Sunshine
In May, the average sunshine is 10.3h.UV index
The average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: In May, a daily maximum UV index of 4 leads to the following instructions:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. The solar radiation around mid-day is intense; avoid the Sun and stay safe. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Columbus, MT
- Average high temperature in May: 61°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is December (30.9°F).
- Average low temperature in May: 41.5°F
The month with the highest average low temperature is August (57.2°F).
The coldest month (with the lowest average low temperature) is February (17.4°F).
Average pressure in May
Columbus, MT
- Average pressure in May: 29.93"Hg
The months with the highest atmospheric pressure are January and December (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in May
Columbus, MT
- Average wind speed in May: 7.2mph
The windiest month (with the highest average wind speed) is January (8.9mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).
Average humidity in May
Columbus, MT
- Average humidity in May: 62%
The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is August (41%).
Average rainfall in May
Columbus, MT
- Average rainfall in May: 2.6"
The wettest month (with the highest rainfall) is May (2.6").
The driest month (with the least rainfall) is January (0.63").
Average rainfall days in May
Columbus, MT
- Average rainfall days in May: 17.5 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is February (6.7 days).
Average snowfall in May
Columbus, MT
- Average snowfall in May: 0.91"
The month with the highest snowfall is February (7.36").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Columbus, MT
- Average snowfall days in May: 1 days
The month with the highest number of snowfall days is February (13.4 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Columbus, MT
- Average daylight in May: 14h and 54min
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 18min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The months with the least sunshine are February and December (Average sunshine: 6h and 12min).
Average sunshine days in May
Columbus, MT
- Average sunshine days in May: 9.9 days
The month with the most sunshine days is September (18.9 days).
The month with the least sunshine days is April (9.5 days).
Average UV index in May
Columbus, 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, November and December (UV index 2).
Average cloud cover in May
Columbus, MT
- Average cloud cover in May: 33
The month with the most cloud cover is February (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 14).
Average visibility in May
Columbus, 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).
