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
A subtle rise in the average high-temperature is observed during May, adjusting from a mild 58.5°F (14.7°C) in April to an enjoyable 67.1°F (19.5°C). In Tualatin, following the steep rise of daytime temperatures, an average nighttime low of 44.4°F (6.9°C) is anticipated during May.Humidity
In May, the average relative humidity is 73%.Rainfall
In Tualatin, during May, the rain falls for 13.4 days and regularly aggregates up to 1.69" (43mm) of precipitation. In Tualatin, during the entire year, the rain falls for 170.9 days and collects up to 30.67" (779mm) of precipitation.Snowfall
In Tualatin, snow does not fall in April through October.Daylight
In Tualatin, the average length of the day in May is 14h and 55min.On the first day of the month, sunrise is at 5:57 am and sunset at 8:18 pm. On the last day of May, sunrise is at 5:26 am and sunset at 8:51 pm PDT.
Sunshine
In May, the average sunshine is 8.8h.UV index
In Tualatin, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: In May, a daily UV index of 4 turns into the following recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature?
What is the average humidity in May?
How much does it rain in May?
When it does not snow?
What is the average length of the day in May?
When is the sunrise / sunset in May?
How many hours of sunshine does Tualatin have in May?
How high is the UV index in May?
Average temperature in May
Tualatin, OR
- Average high temperature in May: 67.1°F
The warmest month (with the highest average high temperature) is August (82°F).
The month with the lowest average high temperature is December (44.1°F).
- Average low temperature in May: 44.4°F
The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is December (34.5°F).
Average pressure in May
Tualatin, OR
- Average pressure in May: 30.03"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in May
Tualatin, OR
- Average wind speed in May: 4.2mph
The windiest month (with the highest average wind speed) is January (5.5mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in May
Tualatin, OR
- Average humidity in May: 73%
The months with the highest relative humidity are January, February and December (84%).
The month with the lowest relative humidity is August (63%).
Average rainfall in May
Tualatin, OR
- Average rainfall in May: 1.69"
The wettest month (with the highest rainfall) is December (4.57").
The driest month (with the least rainfall) is July (0.31").
Average rainfall days in May
Tualatin, OR
- Average rainfall days in May: 13.4 days
The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (4.8 days).
Average snowfall in May
Tualatin, OR
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.57").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Tualatin, OR
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (2.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Tualatin, 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: 8h and 5min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).
Average sunshine days in May
Tualatin, OR
- Average sunshine days in May: 15.7 days
The month with the most sunshine days is July (25 days).
The month with the least sunshine days is February (8.6 days).
Average UV index in May
Tualatin, OR
- Average UV index in May: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Tualatin, OR
- Average cloud cover in May: 46
The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in May
Tualatin, OR
- Average visibility in May: 5mi
The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, May, June, October, November and December (5mi).
Tualatin, Oregon, USA
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