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 Wallowa transitions into May, the average high-temperature is observed to rise from a chilly 47.8°F (8.8°C) in April to a mild 58.3°F (14.6°C). A marked drop from daytime peak temperatures to an average low-temperature of 36°F (2.2°C) is observed during the nights in May.Humidity
The average relative humidity in May in Wallowa is 69%.Rainfall
May is the month with the most rainfall. Rain falls for 17.3 days and accumulates 3.07" (78mm) of precipitation.Snowfall
January through June, September through December are months with snowfall. In Wallowa, in May, during 2.2 snowfall days, 0.71" (18mm) of snow is typically accumulated. In Wallowa, during the entire year, snow falls for 89.9 days and aggregates up to 68.82" (1748mm) of snow.Daylight
In May, the average length of the day is 14h and 56min.On the first day of May, sunrise is at 5:36 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 5:04 am and sunset at 8:31 pm PDT.
Sunshine
In Wallowa, the average sunshine in May is 10.3h.UV index
The average daily maximum UV index in May is 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 3 during May leads to these advisories:
Guard yourself - An obligation to protect skin and eyes from harm exists. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature?
What is the average humidity in May?
What is the rainiest month?
How many days does it rain in May in Wallowa?
How many days does it snow in May?
What is the average length of the day in May?
What time are sunrise and sunset in May in Wallowa?
How long on average sun shines in May?
What is the UV index reading in May?
Average temperature in May
Wallowa, OR
- Average high temperature in May: 58.3°F
The warmest months (with the highest average high temperature) are July and August (78.4°F).
The month with the lowest average high temperature is December (30.4°F).
- Average low temperature in May: 36°F
The month with the highest average low temperature is August (50.9°F).
The coldest month (with the lowest average low temperature) is December (19.2°F).
Average pressure in May
Wallowa, OR
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.21"Hg).
The month with the lowest atmospheric pressure is August (29.92"Hg).
Average wind speed in May
Wallowa, OR
- Average wind speed in May: 4.6mph
The windiest month (with the highest average wind speed) is January (6.5mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).
Average humidity in May
Wallowa, OR
- Average humidity in May: 69%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is August (46%).
Average rainfall in May
Wallowa, OR
- Average rainfall in May: 3.07"
The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is July (0.83").
Average rainfall days in May
Wallowa, OR
- Average rainfall days in May: 17.3 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is August (5.8 days).
Average snowfall in May
Wallowa, OR
- Average snowfall in May: 0.71"
The month with the highest snowfall is February (15.98").
The months with the least snowfall are July and August (0").
Average snowfall days in May
Wallowa, OR
- Average snowfall days in May: 2.2 days
The month with the highest number of snowfall days is December (17.5 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in May /
Average sunshine in May
Wallowa, OR
- Average daylight in May: 14h and 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in May: 10h and 2min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in May
Wallowa, OR
- Average sunshine days in May: 10.6 days
The month with the most sunshine days is August (21.6 days).
The month with the least sunshine days is March (8 days).
Average UV index in May
Wallowa, OR
- Average UV index in May: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in May
Wallowa, OR
- Average cloud cover in May: 35
The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 11).
Average visibility in May
Wallowa, OR
- Average visibility in May: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).
Wallowa, Oregon, USA
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