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
As Chattaroy enters May, the average high-temperature increases from the a cool 54.7°F (12.6°C) of April to an enjoyable 65.8°F (18.8°C). Despite a significant disparity with daytime temperatures, an average low-temperature of 41.4°F (5.2°C) is recorded during May.Humidity
The average relative humidity in May is 64%.Rainfall
In Chattaroy, Washington, during May, the rain falls for 12.8 days and regularly aggregates up to 1.69" (43mm) of precipitation. Throughout the year, there are 124.9 rainfall days, and 17.44" (443mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall in Chattaroy. May is the last month it regularly snows. During 0.2 snowfall days, in May, Chattaroy aggregates 0.04" (1mm) of snow. In Chattaroy, during the entire year, snow falls for 69.2 days and aggregates up to 42.99" (1092mm) of snow.Daylight
The average length of the day in May in Chattaroy is 15h and 11min.On the first day of the month, sunrise is at 5:29 am and sunset at 8:02 pm. On the last day of May, sunrise is at 4:54 am and sunset at 8:39 pm PDT.
Sunshine
The average sunshine in May is 10.2h.UV index
In Chattaroy, the average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 4 in May interprets into the following recommendations:
Put precautions into practice - Guidance to elude sunburn is provided. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Boost your sun resistance with garments that are densely woven yet spacious. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures?
What is the average humidity in May in Chattaroy?
How many days does it rain in May?
What is the last month it snows in Chattaroy?
What is the average length of the day in May?
What time are sunrise and sunset in May?
How many hours of sunshine does Chattaroy have in May?
What is the UV index intensity in May?
Average temperature in May
Chattaroy, WA
- Average high temperature in May: 65.8°F
The warmest month (with the highest average high temperature) is August (84°F).
The month with the lowest average high temperature is December (31.3°F).
- Average low temperature in May: 41.4°F
The month with the highest average low temperature is August (54.3°F).
The coldest month (with the lowest average low temperature) is December (20.3°F).
Average pressure in May
Chattaroy, WA
- Average pressure in May: 29.94"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The months with the lowest atmospheric pressure are June and August (29.91"Hg).
Average wind speed in May
Chattaroy, WA
- Average wind speed in May: 5.2mph
The windiest month (with the highest average wind speed) is April (5.6mph).
The calmest month (with the lowest average wind speed) is December (4mph).
Average humidity in May
Chattaroy, WA
- Average humidity in May: 64%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is August (43%).
Average rainfall in May
Chattaroy, WA
- Average rainfall in May: 1.69"
The wettest month (with the highest rainfall) is January (2.4").
The driest month (with the least rainfall) is August (0.31").
Average rainfall days in May
Chattaroy, WA
- Average rainfall days in May: 12.8 days
The month with the highest number of rainy days is March (16.2 days).
The month with the least rainy days is August (5.1 days).
Average snowfall in May
Chattaroy, WA
- Average snowfall in May: 0.04"
The month with the highest snowfall is January (13.23").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Chattaroy, WA
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is December (16.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Chattaroy, WA
- Average daylight in May: 15h and 1min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in May: 10h and 1min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in May
Chattaroy, WA
- Average sunshine days in May: 16.4 days
The month with the most sunshine days is July (24.2 days).
The month with the least sunshine days is March (9.7 days).
Average UV index in May
Chattaroy, WA
- Average UV index in May: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are February, November and December (UV index 1).
Average cloud cover in May
Chattaroy, WA
- Average cloud cover in May: 34
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in May
Chattaroy, WA
- Average visibility in May: 6mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (3mi).
Chattaroy, Washington, USA
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