May weather forecastShell, WY
May
Weather in May
The last month of the spring, May, is a chilly month in Shell, Wyoming, with an average temperature ranging between max 47.8°F (8.8°C) and min 31.1°F (-0.5°C).Temperature
The arrival of May brings an increase in high-temperatures, moving from an icy 36.9°F (2.7°C) in April to a frosty 47.8°F (8.8°C). Shell records a mean low-temperature of 31.1°F (-0.5°C) in May.Humidity
The average relative humidity in May is 72%.Rainfall
May is the month with the most rainfall. Rain falls for 9.5 days and accumulates 3.62" (92mm) of precipitation.Snowfall
January through June, August through December are months with snowfall in Shell. The month with the most snowfall is May, when snow falls for 12.3 days and typically aggregates up to 19.33" (491mm) of snow.Daylight
In Shell, the average length of the day in May is 14h and 50min.On the first day of May, sunrise is at 6:00 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 5:29 am and sunset at 8:48 pm MDT.
Sunshine
The average sunshine in May is 9.7h.UV index
The average daily maximum UV index in May is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum high daily UV index of 3 during May translates into the following directions:
Put precautions into practice - Ensuring skin and eye safety is a necessity. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Beware! Reflection from snow can magnify 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
Shell, WY
- Average high temperature in May: 47.8°F
The warmest month (with the highest average high temperature) is July (69.4°F).
The month with the lowest average high temperature is December (20.8°F).
- Average low temperature in May: 31.1°F
The month with the highest average low temperature is July (48.7°F).
The coldest month (with the lowest average low temperature) is December (2.3°F).
Average pressure in May
Shell, WY
- Average pressure in May: 29.91"Hg
The months with the highest atmospheric pressure are January and December (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in May
Shell, WY
- Average wind speed in May: 5.9mph
The windiest month (with the highest average wind speed) is June (6.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in May
Shell, WY
- Average humidity in May: 72%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is August (51%).
Average rainfall in May
Shell, WY
- Average rainfall in May: 3.62"
The wettest month (with the highest rainfall) is May (3.62").
The driest month (with the least rainfall) is December (0.75").
Average rainfall days in May
Shell, WY
- Average rainfall days in May: 9.5 days
The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is November (2.3 days).
Average snowfall in May
Shell, WY
- Average snowfall in May: 19.33"
The month with the highest snowfall is May (19.33").
The month with the least snowfall is July (0").
Average snowfall days in May
Shell, WY
- Average snowfall days in May: 12.3 days
The month with the highest number of snowfall days is January (15.8 days).
The month with the least snowfall days is July (0 days).
Average daylight in May /
Average sunshine in May
Shell, WY
- Average daylight in May: 14h and 48min
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: 9h and 42min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in May
Shell, WY
- Average sunshine days in May: 9.8 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is June (8.6 days).
Average UV index in May
Shell, WY
- Average UV index in May: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in May
Shell, WY
- Average cloud cover in May: 37
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 16).
Average visibility in May
Shell, WY
- Average visibility in May: 6mi
The months with the highest visibility are May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (4mi).
