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
May's arrival coincides with a rise in the average high-temperature, moving from April's frosty 47.1°F (8.4°C) to a mild 57.2°F (14°C). Banner observes an average low-temperature of 39.4°F (4.1°C) during May nights.Humidity
In May, the average relative humidity is 67%.Rainfall
May is the month with the most rainfall. Rain falls for 22.3 days and accumulates 3.43" (87mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. May is the last month it regularly snows in Banner. During 2 snowfall days, in May, Banner aggregates 2.17" (55mm) of snow. In Banner, during the entire year, snow falls for 78.9 days and aggregates up to 46.3" (1176mm) of snow.Daylight
The average length of the day in May is 14h and 50min.On the first day of May, sunrise is at 5:56 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 5:25 am and sunset at 8:45 pm MDT.
Sunshine
In Banner, the average sunshine in May is 10.5h.UV index
In May, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.Note: In May, the average maximum UV index of 4 translates into the following recommendations:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Frequently asked questions
What are the temperatures in Banner in May?
What is the average humidity in May in Banner?
What is the wettest month in Banner?
How many days does it rain in May in Banner?
What is the last month it snows in Banner?
What is the average length of the day in May in Banner?
What time are sunrise and sunset in May in Banner?
How long on average sun shines in May in Banner?
How high is the UV index in May in Banner?
Average temperature in May
Banner, WY
- Average high temperature in May: 57.2°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is February (29.1°F).
- Average low temperature in May: 39.4°F
The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is February (14.4°F).
Average pressure in May
Banner, WY
- Average pressure in May: 29.91"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in May
Banner, WY
- Average wind speed in May: 7.2mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in May
Banner, WY
- Average humidity in May: 67%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is August (46%).
Average rainfall in May
Banner, WY
- Average rainfall in May: 3.43"
The wettest month (with the highest rainfall) is May (3.43").
The driest month (with the least rainfall) is December (0.75").
Average rainfall days in May
Banner, WY
- Average rainfall days in May: 22.3 days
The month with the highest number of rainy days is May (22.3 days).
The month with the least rainy days is November (7.5 days).
Average snowfall in May
Banner, WY
- Average snowfall in May: 2.17"
The month with the highest snowfall is April (8.7").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Banner, WY
- Average snowfall days in May: 2 days
The month with the highest number of snowfall days is February (15.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Banner, WY
- Average daylight in May: 14h and 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in May: 10h and 3min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 6min).
Average sunshine days in May
Banner, WY
- Average sunshine days in May: 5.8 days
The month with the most sunshine days is November (15.2 days).
The month with the least sunshine days is May (5.8 days).
Average UV index in May
Banner, WY
- 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, April, October, November and December (UV index 2).
Average cloud cover in May
Banner, WY
- Average cloud cover in May: 33
The months with the most cloud cover are February and April (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 15).
Average visibility in May
Banner, WY
- 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).
Banner, Wyoming, USA
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