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
May's onset brings a temperature rise, moving from an enjoyable 61.3°F (16.3°C) in April to an agreeable 71.1°F (21.7°C). Throughout the month of May, Grandview observes a dramatic downturn from the daytime peak temperatures, expecting an average low of 49.5°F (9.7°C).Humidity
The average relative humidity in May in Grandview is 49%.Rainfall
The month with the most rainfall is May, when the rain falls for 9.2 days and typically aggregates up to 0.71" (18mm) of precipitation.Snowfall
In Grandview, snow does not fall in April through October.Daylight
The average length of the day in May in Grandview is 15h and 1min.On the first day of May, sunrise is at 5:44 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 5:11 am and sunset at 8:43 pm PDT.
Sunshine
The average sunshine in May in Grandview is 10.8h.UV index
In Grandview, the average daily maximum UV index in May is 5. 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: The UV index of 5 during May leads to these advisories:
Take necessary precautions - Protection from skin and eye injury is mandatory. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Experience reduced UV exposure by about half when donning a wide-brim hat.
Frequently asked questions
What are May temperatures in Grandview?
What is the average humidity in May in Grandview?
What is the wettest month in Grandview?
How much does it rain in Grandview in May?
When it does not snow in Grandview?
What is the average length of the day in May in Grandview?
What time are sunrise and sunset in May in Grandview?
How long on average sun shines in May in Grandview?
How high is the UV index in May in Grandview?
Average temperature in May
Grandview, WA
- Average high temperature in May: 71.1°F
The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is December (36.5°F).
- Average low temperature in May: 49.5°F
The month with the highest average low temperature is August (62.2°F).
The coldest month (with the lowest average low temperature) is December (26.2°F).
Average pressure in May
Grandview, WA
- Average pressure in May: 29.96"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is August (29.92"Hg).
Average wind speed in May
Grandview, WA
- Average wind speed in May: 7.6mph
The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is December (5.2mph).
Average humidity in May
Grandview, WA
- Average humidity in May: 49%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is July (37%).
Average rainfall in May
Grandview, WA
- Average rainfall in May: 0.71"
The wettest month (with the highest rainfall) is May (0.71").
The driest month (with the least rainfall) is July (0.2").
Average rainfall days in May
Grandview, WA
- Average rainfall days in May: 9.2 days
The month with the highest number of rainy days is May (9.2 days).
The month with the least rainy days is July (4 days).
Average snowfall in May
Grandview, WA
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.34").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Grandview, WA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is December (3.9 days).
The months with the least snowfall days are April, May, June, July, August and October (0 days).
Average daylight in May /
Average sunshine in May
Grandview, WA
- Average daylight in May: 15h and 0min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in May: 10h and 5min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in May
Grandview, WA
- Average sunshine days in May: 19.9 days
The month with the most sunshine days is July (25.7 days).
The month with the least sunshine days is February (18.7 days).
Average UV index in May
Grandview, WA
- Average UV index in May: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Grandview, WA
- Average cloud cover in May: 27
The month with the most cloud cover is January (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 10).
Average visibility in May
Grandview, 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).
Grandview, Washington, USA
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