May weather forecastWashington, UT
May
Weather in May
In May, as summer approaches, Washington, Utah, steps up on the heat index. Temperatures escalate noticeably, although they are a far cry from the peak summer heat. The azure sky features lesser cloud cover, representing a more settled weather period. Sunshine hours peak, touching the 14.2 hours mark, ushering in a definite shift towards summer. This month also signals the lightest rainfall of the year, with only 0.28in, paving the way for the upcoming arid months.Temperature
A shift in the average high-temperature is noticeable in May, changing from an agreeable 68.4°F (20.2°C) in April to a warm 77.4°F (25.2°C). Washington records a consistent low-temperature average of 55.2°F (12.9°C) during May, indicating a significant difference from the daytime heat.Humidity
The average relative humidity in May in Washington is 26%.Rainfall
In Washington, during May, the rain falls for 4.5 days and regularly aggregates up to 0.28" (7mm) of precipitation. Throughout the year, in Washington, there are 66.6 rainfall days, and 6.97" (177mm) of precipitation is accumulated.Snowfall
In Washington, snow does not fall in March through October.Daylight
In May, the average length of the day in Washington is 14h and 11min.On the first day of May in Washington, sunrise is at 6:38 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 6:15 am and sunset at 8:48 pm MDT.
Sunshine
In Washington, the average sunshine in May is 11.6h.UV index
In Washington, Utah, the average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index, 6 in May, converts into the following recommendations:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Washington, UT
- Average high temperature in May: 77.4°F
The warmest month (with the highest average high temperature) is July (93.9°F).
The month with the lowest average high temperature is December (47.7°F).
- Average low temperature in May: 55.2°F
The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is December (31.6°F).
Average pressure in May
Washington, UT
- Average pressure in May: 29.85"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in May
Washington, UT
- Average wind speed in May: 7.1mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest months (with the lowest average wind speed) are August and December (5.3mph).
Average humidity in May
Washington, UT
- Average humidity in May: 26%
The month with the highest relative humidity is January (59%).
The month with the lowest relative humidity is June (18%).
Average rainfall in May
Washington, UT
- Average rainfall in May: 0.28"
The wettest month (with the highest rainfall) is March (0.98").
The driest month (with the least rainfall) is June (0.12").
Average rainfall days in May
Washington, UT
- Average rainfall days in May: 4.5 days
The month with the highest number of rainy days is March (8.3 days).
The month with the least rainy days is June (1.8 days).
Average snowfall in May
Washington, UT
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.2").
The months with the least snowfall are March, April, May, June, July, August, September and October (0").
Average snowfall days in May
Washington, UT
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is December (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Washington, UT
- Average daylight in May: 14h and 12min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in May: 11h and 36min
The months with the most sunshine are June and July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).
Average sunshine days in May
Washington, UT
- Average sunshine days in May: 24 days
The month with the most sunshine days is June (26.3 days).
The month with the least sunshine days is July (17.9 days).
Average UV index in May
Washington, UT
- Average UV index in May: 6
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in May
Washington, UT
- Average cloud cover in May: 12
The month with the most cloud cover is December (Cloud cover 21).
The month with the least cloud cover is June (Cloud cover 6).
Average visibility in May
Washington, UT
- 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).
