May weather forecastRock Springs, WY
May
Weather in May
Rock Springs welcomes May with a warm reception and a drastic reduction in snowfall to just 0.87" (22mm). The city records an increased mean temperature range between 60.3°F (15.7°C) and 41.4°F (5.2°C). The finer weather marks the arrival of sunny days and blooming flowers, ushering in the joyous spring season at full swing. With a lower humidity level and extended daylight hours, the weather in May ensures ample opportunities for outdoor excursions and picnics.Temperature
Rock Springs's transition into May sees a rise in the average high-temperature, advancing from a frosty 48.7°F (9.3°C) in April to a mild 60.3°F (15.7°C). Throughout May, a steady low-temperature average of 41.4°F (5.2°C) is noted.Humidity
In May, the average relative humidity in Rock Springs is 47%.Rainfall
May is the month with the most rainfall in Rock Springs. Rain falls for 13.8 days and accumulates 1.5" (38mm) of precipitation.Snowfall
Months with snowfall in Rock Springs are January through June, September through December. In Rock Springs, Wyoming, during May, snow falls for 1.8 days and regularly aggregates up to 0.87" (22mm) of snow. Throughout the year, in Rock Springs, there are 75.5 snowfall days, and 30.16" (766mm) of snow is accumulated.Daylight
In May, the average length of the day in Rock Springs is 14h and 33min.On the first day of the month, sunrise is at 6:12 am and sunset at 8:15 pm. On the last day of May, sunrise is at 5:45 am and sunset at 8:44 pm MDT.
Sunshine
In May, the average sunshine in Rock Springs is 10.9h.UV index
The average daily maximum UV index in May in Rock Springs is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: The daily maximum UV index of 5 in May interprets into the following advice:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Consider carefully! The reflective quality of 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
Average temperature in May
Rock Springs, WY
- Average high temperature in May: 60.3°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is December (25.7°F).
- Average low temperature in May: 41.4°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).
Average pressure in May
Rock Springs, WY
- Average pressure in May: 29.9"Hg
The month with the highest atmospheric pressure is January (30.28"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in May
Rock Springs, WY
- Average wind speed in May: 11.1mph
The windiest month (with the highest average wind speed) is April (12.2mph).
The calmest month (with the lowest average wind speed) is August (8.7mph).
Average humidity in May
Rock Springs, WY
- Average humidity in May: 47%
The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are July and August (31%).
Average rainfall in May
Rock Springs, WY
- Average rainfall in May: 1.5"
The wettest month (with the highest rainfall) is May (1.5").
The driest month (with the least rainfall) is July (0.47").
Average rainfall days in May
Rock Springs, WY
- Average rainfall days in May: 13.8 days
The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is December (4.7 days).
Average snowfall in May
Rock Springs, WY
- Average snowfall in May: 0.87"
The month with the highest snowfall is March (6.14").
The months with the least snowfall are July and August (0").
Average snowfall days in May
Rock Springs, WY
- Average snowfall days in May: 1.8 days
The month with the highest number of snowfall days is December (13.5 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in May /
Average sunshine in May
Rock Springs, WY
- Average daylight in May: 14h and 30min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in May: 10h and 54min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 54min).
Average sunshine days in May
Rock Springs, WY
- Average sunshine days in May: 13.4 days
The month with the most sunshine days is September (19.8 days).
The month with the least sunshine days is April (11.5 days).
Average UV index in May
Rock Springs, 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
Rock Springs, WY
- Average cloud cover in May: 26
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in May
Rock Springs, WY
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
