May weather forecastKennewick, WA
May
Weather in May
Urban and natural beauty merge in Kennewick in May, marked by comfortable weather and lush landscapes. The city sees an upward trend in temperatures, with the thermometer indicating highs of around 73°F (22.8°C). This month, rain chances do not fade completely but drop significantly making room for more sunny days. The promise of good weather encourages travelers and locals to experience and appreciate outdoor activities. Kennewick truly basks in the pleasantness that spring brings.Temperature
May in Kennewick sees a rise in the average high-temperature, climbing from an enjoyable 63.1°F (17.3°C) in April to a pleasant 73°F (22.8°C). Despite drastic daytime highs, Kennewick logs an average low-temperature reading of 50.5°F (10.3°C) throughout May.Humidity
The average relative humidity in May is 50%.Rainfall
In Kennewick, during May, the rain falls for 8.9 days and regularly aggregates up to 0.67" (17mm) of precipitation. In Kennewick, during the entire year, the rain falls for 102.8 days and collects up to 7.32" (186mm) of precipitation.Snowfall
In Kennewick, snow does not fall in April through October.Daylight
In Kennewick, the average length of the day in May is 15h and 0min.On the first day of May, sunrise is at 5:41 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 5:08 am and sunset at 8:40 pm PDT.
Sunshine
In Kennewick, the average sunshine in May is 11.1h.UV index
In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: An average UV index of 5 in May transforms into this advice:
Exercise caution. Those with pale skin may experience burns in less than half an hour. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Kennewick, WA
- Average high temperature in May: 73°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is December (38.3°F).
- Average low temperature in May: 50.5°F
The month with the highest average low temperature is August (64°F).
The coldest month (with the lowest average low temperature) is December (27.9°F).
Average pressure in May
Kennewick, WA
- Average pressure in May: 29.94"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in May
Kennewick, WA
- Average wind speed in May: 7.5mph
The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is December (5.8mph).
Average humidity in May
Kennewick, WA
- Average humidity in May: 50%
The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is July (35%).
Average rainfall in May
Kennewick, WA
- Average rainfall in May: 0.67"
The wettest months (with the highest rainfall) are March and December (0.94").
The driest month (with the least rainfall) is July (0.2").
Average rainfall days in May
Kennewick, WA
- Average rainfall days in May: 8.9 days
The month with the highest number of rainy days is March (13.3 days).
The month with the least rainy days is July (3.5 days).
Average snowfall in May
Kennewick, WA
- Average snowfall in May: 0"
The month with the highest snowfall is February (2.2").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Kennewick, WA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is December (3.1 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
Kennewick, WA
- Average daylight in May: 15h and 0min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in May: 11h and 6min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in May
Kennewick, WA
- Average sunshine days in May: 19.8 days
The month with the most sunshine days is July (25.7 days).
The month with the least sunshine days is March (15.4 days).
Average UV index in May
Kennewick, WA
- Average UV index in May: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Kennewick, WA
- Average cloud cover in May: 26
The month with the most cloud cover is January (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in May
Kennewick, WA
- 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).
