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 May arrives, Jeffrey City's weather shows an increase in high-temperatures, moving from April's fresh 50°F (10°C) to an enjoyable 61.2°F (16.2°C). Throughout the month of May, Jeffrey City observes an average nighttime temperature of 41.4°F (5.2°C).Humidity
The average relative humidity in May is 51%.Rainfall
In Jeffrey City, in May, it is raining for 8.7 days, with typically 0.71" (18mm) of accumulated precipitation. Throughout the year, there are 74.8 rainfall days, and 5.71" (145mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 1.8 snowfall days, in May, Jeffrey City aggregates 0.63" (16mm) of snow. In Jeffrey City, during the entire year, snow falls for 58.1 days and aggregates up to 18.94" (481mm) of snow.Daylight
In May, the average length of the day is 14h and 38min.On the first day of the month, sunrise is at 6:04 am and sunset at 8:11 pm. On the last day of May, sunrise is at 5:36 am and sunset at 8:41 pm MDT.
Sunshine
The average sunshine in May is 11h.UV index
In Jeffrey City, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In May, the maximum UV index of 5 suggests this advice:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures?
What is the average humidity in May?
How many days does it rain in May in Jeffrey City?
What is the last month it snows?
What is the average length of the day in May?
When are sunrise and sunset in May?
How many hours of sunshine does Jeffrey City have in May?
How high is the UV index in May?
Average temperature in May
Jeffrey City, WY
- Average high temperature in May: 61.2°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is December (27.1°F).
- Average low temperature in May: 41.4°F
The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (12.9°F).
Average pressure in May
Jeffrey City, WY
- Average pressure in May: 29.9"Hg
The month with the highest atmospheric pressure is January (30.2"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in May
Jeffrey City, WY
- Average wind speed in May: 9.9mph
The windiest months (with the highest average wind speed) are April and November (10.9mph).
The calmest month (with the lowest average wind speed) is August (8.3mph).
Average humidity in May
Jeffrey City, WY
- Average humidity in May: 51%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (34%).
Average rainfall in May
Jeffrey City, WY
- Average rainfall in May: 0.71"
The wettest month (with the highest rainfall) is April (0.79").
The driest months (with the least rainfall) are July and August (0.24").
Average rainfall days in May
Jeffrey City, WY
- Average rainfall days in May: 8.7 days
The month with the highest number of rainy days is April (10.3 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in May
Jeffrey City, WY
- Average snowfall in May: 0.63"
The months with the highest snowfall are March and December (3.15").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Jeffrey City, WY
- Average snowfall days in May: 1.8 days
The month with the highest number of snowfall days is December (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Jeffrey City, 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 6min).
- Average sunshine in May: 11h and 0min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is February (Average sunshine: 6h and 12min).
Average sunshine days in May
Jeffrey City, WY
- Average sunshine days in May: 18.2 days
The month with the most sunshine days is September (22.1 days).
The month with the least sunshine days is April (14.5 days).
Average UV index in May
Jeffrey City, WY
- Average UV index in May: 5
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
Jeffrey City, WY
- Average cloud cover in May: 25
The month with the most cloud cover is February (Cloud cover 37).
The months with the least cloud cover are August and September (Cloud cover 13).
Average visibility in May
Jeffrey City, 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).
Jeffrey City, Wyoming, USA
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