May weather forecastVan Norman, MT
May
Weather in May
May, the last month of the spring in Van Norman, is an enjoyable month, with an average temperature ranging between min 46.8°F (8.2°C) and max 64.8°F (18.2°C).Temperature
The shift from April to May brings an increase in the average high-temperature, moving from a fresh 53.4°F (11.9°C) to a refreshing 64.8°F (18.2°C). Van Norman in May experiences a low-temperature average of 46.8°F (8.2°C).Humidity
The average relative humidity in May is 53%.Rainfall
The wettest months are May and June, with an average 1.89" (48mm) of rainfall.Snowfall
January through May, September through December are months with snowfall. May is the last month it regularly snows. During 0.4 snowfall days, in May, Van Norman aggregates 0.35" (9mm) of snow. In Van Norman, during the entire year, snow falls for 58.4 days and aggregates up to 21.1" (536mm) of snow.Daylight
The average length of the day in May is 15h and 8min.On the first day of May, sunrise is at 5:47 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 5:12 am and sunset at 8:53 pm MDT.
Sunshine
In Van Norman, the average sunshine in May is 10h.UV index
In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In May, an average UV index of 5 transforms into the following instructions:
Take necessary precautions - Suggestions to elude sunburn are provided. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Van Norman, MT
- Average high temperature in May: 64.8°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (27.7°F).
- Average low temperature in May: 46.8°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (14.7°F).
Average pressure in May
Van Norman, MT
- Average pressure in May: 29.91"Hg
The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in May
Van Norman, MT
- Average wind speed in May: 11.2mph
The windiest month (with the highest average wind speed) is April (12mph).
The calmest month (with the lowest average wind speed) is February (9.9mph).
Average humidity in May
Van Norman, MT
- Average humidity in May: 53%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (40%).
Average rainfall in May
Van Norman, MT
- Average rainfall in May: 1.89"
The wettest months (with the highest rainfall) are May and June (1.89").
The driest month (with the least rainfall) is November (0.63").
Average rainfall days in May
Van Norman, MT
- Average rainfall days in May: 14.5 days
The month with the highest number of rainy days is May (14.5 days).
The month with the least rainy days is February (3.7 days).
Average snowfall in May
Van Norman, MT
- Average snowfall in May: 0.35"
The month with the highest snowfall is December (4.45").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Van Norman, MT
- Average snowfall days in May: 0.4 days
The month with the highest number of snowfall days is December (12.5 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in May /
Average sunshine in May
Van Norman, 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: 10h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The months with the least sunshine are January and February (Average sunshine: 4h and 54min).
Average sunshine days in May
Van Norman, MT
- Average sunshine days in May: 14.6 days
The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is April (12.3 days).
Average UV index in May
Van Norman, MT
- Average UV index in May: 5
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Van Norman, MT
- Average cloud cover in May: 34
The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 16).
Average visibility in May
Van Norman, MT
- Average visibility in May: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
