May weather forecastVan Zandt, WA
May
Weather in May
The last month of the spring, May, is an enjoyable month in Van Zandt, Washington, with an average temperature fluctuating between 62.1°F (16.7°C) and 43°F (6.1°C).Temperature
Van Zandt in May experiences a slight uptick in the average high-temperature, adjusting from April's fresh 53.2°F (11.8°C) to a refreshing 62.1°F (16.7°C). Nighttime temperature experiences an average drop to a frosty 43°F (6.1°C) in May.Humidity
The average relative humidity in May is 77%.Rainfall
In May, the rain falls for 14.8 days. Throughout May, 2.64" (67mm) of precipitation is accumulated. In Van Zandt, during the entire year, the rain falls for 194.7 days and collects up to 48.66" (1236mm) of precipitation.Snowfall
In Van Zandt, snow does not fall in May through October.Daylight
The average length of the day in May is 15h and 18min.On the first day of May, sunrise is at 5:46 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 5:09 am and sunset at 9:03 pm PDT.
Sunshine
The average sunshine in May is 9.1h.UV index
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 average individuals.Note: In May, the UV index of 4 transforms into the following advice:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Van Zandt, WA
- Average high temperature in May: 62.1°F
The warmest month (with the highest average high temperature) is August (73.2°F).
The month with the lowest average high temperature is December (39.6°F).
- Average low temperature in May: 43°F
The month with the highest average low temperature is August (51.3°F).
The coldest months (with the lowest average low temperature) are February and December (31.6°F).
Average pressure in May
Van Zandt, WA
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are March and August (30"Hg).
Average wind speed in May
Van Zandt, WA
- Average wind speed in May: 3.6mph
The windiest month (with the highest average wind speed) is January (4.8mph).
The calmest month (with the lowest average wind speed) is August (3.2mph).
Average humidity in May
Van Zandt, WA
- Average humidity in May: 77%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is July (73%).
Average rainfall in May
Van Zandt, WA
- Average rainfall in May: 2.64"
The wettest month (with the highest rainfall) is November (7.32").
The driest month (with the least rainfall) is July (1.02").
Average rainfall days in May
Van Zandt, WA
- Average rainfall days in May: 14.8 days
The month with the highest number of rainy days is March (21.6 days).
The month with the least rainy days is August (8.5 days).
Average snowfall in May
Van Zandt, WA
- Average snowfall in May: 0"
The month with the highest snowfall is February (2.99").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Van Zandt, WA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (4.3 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
Van Zandt, WA
- Average daylight in May: 15h and 18min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in May: 9h and 6min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in May
Van Zandt, WA
- Average sunshine days in May: 13.4 days
The months with the most sunshine days are July and August (20 days).
The month with the least sunshine days is March (7.8 days).
Average UV index in May
Van Zandt, 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, October, November and December (UV index 2).
Average cloud cover in May
Van Zandt, WA
- Average cloud cover in May: 42
The months with the most cloud cover are January, March and December (Cloud cover 58).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in May
Van Zandt, WA
- Average visibility in May: 5mi
The months with the highest visibility are July and August (6mi).
The month with the lowest visibility is January (4mi).





