May weather forecastJoyce, WA
May
Weather in May
May, the last month of the spring in Joyce, is a mild month, with an average temperature fluctuating between 56.8°F (13.8°C) and 40.5°F (4.7°C).Temperature
Joyce's weather in May shows a minor rise in the average high-temperature, moving slightly up from April's frosty 48.2°F (9°C) to a mild 56.8°F (13.8°C). During the May nights, an average temperature of 40.5°F (4.7°C) is observed.Humidity
The average relative humidity in May in Joyce is 80%.Rainfall
In Joyce, in May, during 13.5 rainfall days, 1.26" (32mm) of precipitation is typically accumulated. In Joyce, Washington, during the entire year, the rain falls for 150.3 days and collects up to 17.36" (441mm) of precipitation.Snowfall
May through October are months without snowfall in Joyce.Daylight
In Joyce, the average length of the day in May is 15h and 13min.On the first day of the month, sunrise is at 5:54 am and sunset at 8:29 pm. On the last day of May, sunrise is at 5:18 am and sunset at 9:06 pm PDT.
Sunshine
The average sunshine in May in Joyce, Washington, is 8.6h.UV index
In Joyce, the average daily maximum UV index in May is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In May, a daily UV index of 3 turns into the following recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Joyce, WA
- Average high temperature in May: 56.8°F
The warmest month (with the highest average high temperature) is August (69.1°F).
The month with the lowest average high temperature is December (39.4°F).
- Average low temperature in May: 40.5°F
The month with the highest average low temperature is August (48.6°F).
The coldest months (with the lowest average low temperature) are February and December (31.5°F).
Average pressure in May
Joyce, WA
- Average pressure in May: 30.04"Hg
The month with the highest atmospheric pressure is July (30.07"Hg).
The month with the lowest atmospheric pressure is March (29.99"Hg).
Average wind speed in May
Joyce, WA
- Average wind speed in May: 4.1mph
The windiest months (with the highest average wind speed) are January and November (5.2mph).
The calmest months (with the lowest average wind speed) are August and September (3.5mph).
Average humidity in May
Joyce, WA
- Average humidity in May: 80%
The months with the highest relative humidity are January and December (89%).
The months with the lowest relative humidity are July and August (76%).
Average rainfall in May
Joyce, WA
- Average rainfall in May: 1.26"
The wettest month (with the highest rainfall) is January (3.35").
The driest months (with the least rainfall) are July and August (0.43").
Average rainfall days in May
Joyce, WA
- Average rainfall days in May: 13.5 days
The month with the highest number of rainy days is March (16.1 days).
The month with the least rainy days is August (5.4 days).
Average snowfall in May
Joyce, WA
- Average snowfall in May: 0"
The month with the highest snowfall is February (4.53").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Joyce, WA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (7.2 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
Joyce, WA
- Average daylight in May: 15h and 12min
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 24min).
- Average sunshine in May: 8h and 36min
The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in May
Joyce, WA
- Average sunshine days in May: 14 days
The month with the most sunshine days is August (22.5 days).
The month with the least sunshine days is February (9.6 days).
Average UV index in May
Joyce, WA
- Average UV index in May: 3
The months with the highest UV index are June, July and August (UV index 4).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in May
Joyce, WA
- Average cloud cover in May: 46
The month with the most cloud cover is February (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in May
Joyce, WA
- Average visibility in May: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February, March and December (4mi).





