May weather forecastHillside Siding, WA
May
Weather in May
The last month of the spring, May, is a refreshing month in Hillside Siding, Washington, with temperature in the range of an average low of 46.2°F (7.9°C) and an average high of 67.8°F (19.9°C).Temperature
May sees a temperature increase, moving from a mild 57.4°F (14.1°C) in April to an enjoyable 67.8°F (19.9°C). May brings Hillside Siding a consistent average low-temperature of 46.2°F (7.9°C).Humidity
The average relative humidity in May is 53%.Rainfall
In Hillside Siding, Washington, during May, the rain falls for 7.5 days and regularly aggregates up to 0.67" (17mm) of precipitation. In Hillside Siding, during the entire year, the rain falls for 87.6 days and collects up to 5.94" (151mm) of precipitation.Snowfall
May through August and October are months without snowfall.Daylight
In May, the average length of the day is 15h and 4min.On the first day of May, sunrise is at 5:45 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 5:11 am and sunset at 8:47 pm PDT.
Sunshine
In Hillside Siding, the average sunshine in May is 11.4h.UV index
In May, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In May, the UV index of 5 transforms into the following advice:
Make use of precautions - Suggestions to resist sunburn are communicated. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Hillside Siding, WA
- Average high temperature in May: 67.8°F
The warmest month (with the highest average high temperature) is August (85.1°F).
The month with the lowest average high temperature is December (36°F).
- Average low temperature in May: 46.2°F
The month with the highest average low temperature is August (58.8°F).
The coldest month (with the lowest average low temperature) is December (23.9°F).
Average pressure in May
Hillside Siding, WA
- Average pressure in May: 29.97"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).
Average wind speed in May
Hillside Siding, WA
- Average wind speed in May: 6.9mph
The windiest month (with the highest average wind speed) is June (7.4mph).
The calmest month (with the lowest average wind speed) is December (4.2mph).
Average humidity in May
Hillside Siding, WA
- Average humidity in May: 53%
The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are July and August (41%).
Average rainfall in May
Hillside Siding, WA
- Average rainfall in May: 0.67"
The wettest month (with the highest rainfall) is December (0.87").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in May
Hillside Siding, WA
- Average rainfall days in May: 7.5 days
The month with the highest number of rainy days is March (10.8 days).
The month with the least rainy days is July (2.3 days).
Average snowfall in May
Hillside Siding, WA
- Average snowfall in May: 0"
The month with the highest snowfall is December (3.07").
The months with the least snowfall are May, June, July, August and October (0").
Average snowfall days in May
Hillside Siding, WA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is December (5.7 days).
The months with the least snowfall days are May, June, July, August and October (0 days).
Average daylight in May /
Average sunshine in May
Hillside Siding, 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: 11h and 24min
The months with the most sunshine are July and August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).
Average sunshine days in May
Hillside Siding, WA
- Average sunshine days in May: 20.3 days
The month with the most sunshine days is July (27.6 days).
The month with the least sunshine days is February (15.5 days).
Average UV index in May
Hillside Siding, WA
- 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, November and December (UV index 2).
Average cloud cover in May
Hillside Siding, WA
- Average cloud cover in May: 22
The month with the most cloud cover is January (Cloud cover 40).
The months with the least cloud cover are July and August (Cloud cover 9).
Average visibility in May
Hillside Siding, WA
- Average visibility in May: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
