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
With the arrival of May, the average high-temperature transitions from a cool 53.6°F (12°C) in April to a comfortable 64°F (17.8°C). An average nighttime temperature of 44.2°F (6.8°C) is observed during May.Humidity
In Ballantine, the average relative humidity in May is 59%.Rainfall
May is the month with the most rainfall. Rain falls for 17.6 days and accumulates 2.13" (54mm) of precipitation.Snowfall
January through May, September through December are months with snowfall in Ballantine, Montana. May is the last month it regularly snows. During 0.7 snowfall days, in May, Ballantine aggregates 0.28" (7mm) of snow. Throughout the year, in Ballantine, there are 64.5 snowfall days, and 31.18" (792mm) of snow is accumulated.Daylight
The average length of the day in May is 14h and 58min.On the first day of the month, sunrise is at 5:58 am and sunset at 8:21 pm. On the last day of May, sunrise is at 5:25 am and sunset at 8:55 pm MDT.
Sunshine
In May, the average sunshine is 9.9h.UV index
The average daily maximum UV index in May in Ballantine is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In May, a daily UV index of 5 turns into the following recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May in Ballantine?
What is the average humidity in May in Ballantine?
What is the wettest month in Ballantine?
How many days does it rain in May in Ballantine?
What is the last month it snows in Ballantine?
What is the average length of the day in May in Ballantine?
When are sunrise and sunset in May in Ballantine?
How long on average sun shines in May in Ballantine?
What is the UV index reading in May in Ballantine?
Average temperature in May
Ballantine, MT
- Average high temperature in May: 64°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is December (31.1°F).
- Average low temperature in May: 44.2°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is February (18.3°F).
Average pressure in May
Ballantine, MT
- Average pressure in May: 29.92"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in May
Ballantine, MT
- Average wind speed in May: 8.6mph
The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in May
Ballantine, MT
- Average humidity in May: 59%
The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is August (40%).
Average rainfall in May
Ballantine, MT
- Average rainfall in May: 2.13"
The wettest month (with the highest rainfall) is May (2.13").
The driest month (with the least rainfall) is July (0.71").
Average rainfall days in May
Ballantine, MT
- Average rainfall days in May: 17.6 days
The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in May
Ballantine, MT
- Average snowfall in May: 0.28"
The month with the highest snowfall is February (6.5").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Ballantine, MT
- Average snowfall days in May: 0.7 days
The month with the highest number of snowfall days is February (13.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Ballantine, 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 5min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).
Average sunshine days in May
Ballantine, MT
- Average sunshine days in May: 11.5 days
The month with the most sunshine days is September (18.8 days).
The month with the least sunshine days is April (9.9 days).
Average UV index in May
Ballantine, 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, February, March, November and December (UV index 2).
Average cloud cover in May
Ballantine, MT
- Average cloud cover in May: 36
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
Ballantine, 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).
Ballantine, Montana, USA
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