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
The onset of May marks an increase in the average high-temperature, moving from a cool 52.3°F (11.3°C) in April to an enjoyable 62.8°F (17.1°C). May in Ralston witnesses an average low-temperature hovering around a frosty 44.2°F (6.8°C).Humidity
In May, the average relative humidity is 51%.Rainfall
The month with the most rainfall is May, when the rain falls for 15.4 days and typically aggregates up to 1.5" (38mm) of precipitation.Snowfall
January through June, September through December are months with snowfall in Ralston, Wyoming. In May, it is snowing for 1.5 days. Throughout May, 1.5" (38mm) of snow is accumulated. In Ralston, Wyoming, during the entire year, snow falls for 52.1 days and aggregates up to 16.97" (431mm) of snow.Daylight
In May, the average length of the day is 14h and 51min.On the first day of the month, sunrise is at 6:03 am and sunset at 8:20 pm. On the last day of May, sunrise is at 5:32 am and sunset at 8:53 pm MDT.
Sunshine
In Ralston, the average sunshine in May is 11.1h.UV index
In Ralston, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: In May, the average maximum UV index of 5 translates into the following recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Frequently asked questions
What is the usual temperature for Ralston in May?
What is the average humidity in May in Ralston?
What is the wettest month in Ralston?
How much does it rain in Ralston in May?
How much does it snow in Ralston in May?
How many hours of daylight does Ralston have in May?
When are sunrise and sunset in May in Ralston?
How long on average sun shines in May in Ralston?
How high is the UV index in May in Ralston?
Average temperature in May
Ralston, WY
- Average high temperature in May: 62.8°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is December (29.7°F).
- Average low temperature in May: 44.2°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is December (15.6°F).
Average pressure in May
Ralston, WY
- Average pressure in May: 29.93"Hg
The months with the highest atmospheric pressure are January and December (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in May
Ralston, WY
- Average wind speed in May: 7.7mph
The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in May
Ralston, WY
- Average humidity in May: 51%
The month with the highest relative humidity is January (76%).
The months with the lowest relative humidity are July and August (37%).
Average rainfall in May
Ralston, 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 January (0.31").
Average rainfall days in May
Ralston, WY
- Average rainfall days in May: 15.4 days
The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is December (4.9 days).
Average snowfall in May
Ralston, WY
- Average snowfall in May: 1.5"
The month with the highest snowfall is February (3.9").
The months with the least snowfall are July and August (0").
Average snowfall days in May
Ralston, WY
- Average snowfall days in May: 1.5 days
The month with the highest number of snowfall days is February (11 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in May /
Average sunshine in May
Ralston, 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: 11h and 1min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 42min).
Average sunshine days in May
Ralston, WY
- Average sunshine days in May: 11.3 days
The month with the most sunshine days is December (21.7 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in May
Ralston, WY
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in May
Ralston, WY
- Average cloud cover in May: 27
The month with the most cloud cover is February (Cloud cover 32).
The month with the least cloud cover is July (Cloud cover 13).
Average visibility in May
Ralston, 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).
Ralston, Wyoming, USA
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