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 April transitions into May, La Grande notices a gentle rise in the average high-temperature, transitioning from a fresh 53.2°F (11.8°C) to a refreshing 62.1°F (16.7°C). An average low-temperature of 40.6°F (4.8°C) is common during the nights of May.Humidity
In La Grande, the average relative humidity in May is 78%.Rainfall
In La Grande, in May, during 14.3 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. In La Grande, during the entire year, the rain falls for 182.2 days and collects up to 37.83" (961mm) of precipitation.Snowfall
In La Grande, Washington, snow does not fall in May through October.Daylight
In La Grande, the average length of the day in May is 15h and 4min.On the first day of May, sunrise is at 5:52 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 5:18 am and sunset at 8:55 pm PDT.
Sunshine
In May, the average sunshine in La Grande is 8.8h.UV index
In May, the average daily maximum UV index in La Grande is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.Note: A typical high UV index of 4 in May suggests the following recommendations:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. To cut down UV radiation exposure by about half, sport a wide-brim hat. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
What is the average May temperature in La Grande?
What is the average humidity in May in La Grande?
How many days does it rain in May in La Grande?
When it does not snow in La Grande?
Does it snow in La Grande in May?
What is the average length of the day in May in La Grande?
What time are sunrise and sunset in May in La Grande?
How many hours of sunshine does La Grande have in May?
What is the UV index reading in May in La Grande?
Average temperature in May
La Grande, WA
- Average high temperature in May: 62.1°F
The warmest month (with the highest average high temperature) is August (75°F).
The month with the lowest average high temperature is December (41.2°F).
- Average low temperature in May: 40.6°F
The month with the highest average low temperature is August (49.5°F).
The coldest month (with the lowest average low temperature) is December (31.1°F).
Average pressure in May
La Grande, WA
- Average pressure in May: 30.02"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in May
La Grande, WA
- Average wind speed in May: 3.9mph
The windiest month (with the highest average wind speed) is January (5mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).
Average humidity in May
La Grande, WA
- Average humidity in May: 78%
The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is July (70%).
Average rainfall in May
La Grande, WA
- Average rainfall in May: 2.24"
The wettest month (with the highest rainfall) is December (5.71").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in May
La Grande, WA
- Average rainfall days in May: 14.3 days
The month with the highest number of rainy days is March (20.2 days).
The month with the least rainy days is August (6.1 days).
Average snowfall in May
La Grande, WA
- Average snowfall in May: 0"
The month with the highest snowfall is February (4.84").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
La Grande, WA
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is February (6 days).
The months with the least snowfall days are June, July, August and October (0 days).
Average daylight in May /
Average sunshine in May
La Grande, WA
- Average daylight in May: 15h and 1min
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: 8h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).
Average sunshine days in May
La Grande, WA
- Average sunshine days in May: 14.7 days
The month with the most sunshine days is August (22.9 days).
The month with the least sunshine days is February (8 days).
Average UV index in May
La Grande, WA
- Average UV index in May: 4
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
La Grande, WA
- Average cloud cover in May: 47
The months with the most cloud cover are January, February, March and December (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in May
La Grande, WA
- Average visibility in May: 5mi
The months with the highest visibility are April, May, June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, November and December (4mi).
La Grande, Washington, USA
Weather forecast for your location
2. Allow the app to use your location
