May weather forecastMcKenna, WA
May
Weather in May
May, the last month of the spring in McKenna, is an enjoyable month, with an average temperature varying between 41.9°F (5.5°C) and 64.9°F (18.3°C).Temperature
McKenna's transition into May is noticed by a slight rise in the average high-temperature, advancing from a mild 56.3°F (13.5°C) in April to a still refreshing 64.9°F (18.3°C). Despite a noticeable differential from daytime highs, McKenna notes an average nighttime low-temperature of 41.9°F (5.5°C) in May.Humidity
In McKenna, the average relative humidity in May is 77%.Rainfall
In May, in McKenna, the rain falls for 14.5 days. Throughout May, 1.93" (49mm) of precipitation is accumulated. In McKenna, during the entire year, the rain falls for 178.1 days and collects up to 33.82" (859mm) of precipitation.Snowfall
In McKenna, snow does not fall in May through October.Daylight
In McKenna, the average length of the day in May is 15h and 5min.On the first day of May in McKenna, sunrise is at 5:53 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 5:19 am and sunset at 8:56 pm PDT.
Sunshine
The average sunshine in May in McKenna is 8.5h.UV index
In May, the average daily maximum UV index in McKenna is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In May, an average UV index of 4 transforms into the following instructions:
Undertake protective steps - Recommendations to avoid sunburn are issued. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
McKenna, WA
- Average high temperature in May: 64.9°F
The warmest month (with the highest average high temperature) is August (77.5°F).
The month with the lowest average high temperature is December (43°F).
- Average low temperature in May: 41.9°F
The month with the highest average low temperature is August (50.5°F).
The coldest month (with the lowest average low temperature) is December (32.9°F).
Average pressure in May
McKenna, WA
- Average pressure in May: 30.03"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in May
McKenna, WA
- Average wind speed in May: 4.1mph
The windiest month (with the highest average wind speed) is January (4.9mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in May
McKenna, WA
- Average humidity in May: 77%
The months with the highest relative humidity are January, February, November and December (87%).
The month with the lowest relative humidity is July (70%).
Average rainfall in May
McKenna, WA
- Average rainfall in May: 1.93"
The wettest month (with the highest rainfall) is December (5.28").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days in May
McKenna, WA
- Average rainfall days in May: 14.5 days
The month with the highest number of rainy days is March (20.2 days).
The month with the least rainy days is August (5.3 days).
Average snowfall in May
McKenna, WA
- Average snowfall in May: 0"
The month with the highest snowfall is February (2.4").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
McKenna, WA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (3.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
McKenna, WA
- Average daylight in May: 15h and 6min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in May: 8h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are January and December (Average sunshine: 4h and 0min).
Average sunshine days in May
McKenna, WA
- Average sunshine days in May: 15.7 days
The month with the most sunshine days is August (23.4 days).
The months with the least sunshine days are February and March (8.8 days).
Average UV index in May
McKenna, WA
- Average UV index in May: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
McKenna, WA
- Average cloud cover in May: 48
The months with the most cloud cover are January, February, March and December (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in May
McKenna, WA
- Average visibility in May: 5mi
The months with the highest visibility are April, May, June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, November and December (4mi).
