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
As April transitions into May, Opal sees a rise in the average high-temperature, moving from a chilly 46°F (7.8°C) to a mild 57.6°F (14.2°C). May's average low-temperature reading in Opal settles at a cold 37.6°F (3.1°C).Humidity
The average relative humidity in May in Opal, Wyoming, is 55%.Rainfall
The month with the most rainfall in Opal is May, when the rain falls for 13.3 days and typically aggregates up to 2.01" (51mm) of precipitation.Snowfall
January through June, September through December are months with snowfall. In Opal, Wyoming, in May, snow falls for 5.1 days, with typically accumulated 3.7" (94mm) of snow. Throughout the year, in Opal, Wyoming, there are 88.9 snowfall days, and 38.86" (987mm) of snow is accumulated.Daylight
In May, the average length of the day in Opal is 14h and 34min.On the first day of the month, sunrise is at 6:16 am and sunset at 8:20 pm. On the last day of May, in Opal, sunrise is at 5:48 am and sunset at 8:49 pm MDT.
Sunshine
In Opal, the average sunshine in May is 10.7h.UV index
In May, the average daily maximum UV index in Opal is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.Note: A maximum high UV index of 4 in May translates into the following recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures in Opal?
What is the average humidity in May in Opal?
What is the rainiest month in Opal?
How many days does it rain in May in Opal?
How many days does it snow in May in Opal?
How many hours of daylight does Opal have in May?
What time are sunrise and sunset in May in Opal?
How long on average sun shines in May in Opal?
What is the UV index intensity in May in Opal?
Average temperature in May
Opal, WY
- Average high temperature in May: 57.6°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is December (25.7°F).
- Average low temperature in May: 37.6°F
The month with the highest average low temperature is July (55°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).
Average pressure in May
Opal, WY
- Average pressure in May: 29.91"Hg
The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in May
Opal, WY
- Average wind speed in May: 9.1mph
The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).
Average humidity in May
Opal, WY
- Average humidity in May: 55%
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is August (35%).
Average rainfall in May
Opal, WY
- Average rainfall in May: 2.01"
The wettest month (with the highest rainfall) is May (2.01").
The driest month (with the least rainfall) is August (0.59").
Average rainfall days in May
Opal, WY
- Average rainfall days in May: 13.3 days
The month with the highest number of rainy days is May (13.3 days).
The month with the least rainy days is February (5 days).
Average snowfall in May
Opal, WY
- Average snowfall in May: 3.7"
The month with the highest snowfall is March (6.81").
The months with the least snowfall are July and August (0").
Average snowfall days in May
Opal, WY
- Average snowfall days in May: 5.1 days
The month with the highest number of snowfall days is February (15.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in May /
Average sunshine in May
Opal, WY
- Average daylight in May: 14h and 4min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in May: 10h and 4min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 42min).
Average sunshine days in May
Opal, WY
- Average sunshine days in May: 11.3 days
The month with the most sunshine days is October (19.4 days).
The month with the least sunshine days is April (9.7 days).
Average UV index in May
Opal, 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
Opal, WY
- Average cloud cover in May: 26
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 12).
Average visibility in May
Opal, WY
- Average visibility in May: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).
Opal, Wyoming, USA
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