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Contents
- The climate of Beaverton
- The best time to visit Beaverton
- The worst time to visit Beaverton
- Spring weather in Beaverton
- Summer weather in Beaverton
- Autumn weather in Beaverton
- Winter weather in Beaverton
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Colored yellow, brown and golden tree colors under a perfect blue, cloudy sky in the fall, mirrored in the calm lake water in Beaverton, Oregon
The climate of Beaverton
Situated in the lush state of Oregon, Beaverton's climate shares much in common with the greater Mediterranean region. According to the Köppen climate classification, Beaverton's weather falls under the category of 'Mediterranean, warm summer', otherwise known as 'Csb'.
Throughout the year, the temperature in Beaverton ranges from an average low of 34.7°F (1.5°C) in December to a high of 81.7°F (27.6°C) in August. The annual weather displays a pattern of cool, damp winters and dry, warm summers. Humidity levels show a similar trend, ranging from a low of 63% in August to a high of 84% during the wintry months of January and December.
Rainfall follows a corresponding pattern with the most precipitation recorded in December with 4.61" (117mm), contrasted by the dry summer months from June to September when rainfall drops noticeably to as low as 0.31" (8mm) in July. Snowfall is minor but present during the colder months from January to March and again in December, peaking at 1.61" (41mm) in February.
One distinctive aspect of Beaverton's weather is the consistent average daylight hours, only slightly dropping from 15.6 hours in June to 8.8 hours in December. Sunshine hours show more deviation, with the longest duration recorded at 10.9 hours in August and the shortest at 3.9 hours in February.
Throughout the year, the temperature in Beaverton ranges from an average low of 34.7°F (1.5°C) in December to a high of 81.7°F (27.6°C) in August. The annual weather displays a pattern of cool, damp winters and dry, warm summers. Humidity levels show a similar trend, ranging from a low of 63% in August to a high of 84% during the wintry months of January and December.
Rainfall follows a corresponding pattern with the most precipitation recorded in December with 4.61" (117mm), contrasted by the dry summer months from June to September when rainfall drops noticeably to as low as 0.31" (8mm) in July. Snowfall is minor but present during the colder months from January to March and again in December, peaking at 1.61" (41mm) in February.
One distinctive aspect of Beaverton's weather is the consistent average daylight hours, only slightly dropping from 15.6 hours in June to 8.8 hours in December. Sunshine hours show more deviation, with the longest duration recorded at 10.9 hours in August and the shortest at 3.9 hours in February.
The best time to visit Beaverton
The most attractive period for tourists to visit Beaverton would arguably be during the summer months, from June to September. The climate during this period is characterized by warm temperatures, ranging between 72.5°F (22.5°C) to 81.7°F (27.6°C), low humidity levels, and minimal rainfall. The region sees an average of 15.6 to 10.5 hours of daylight, paired with long sunshine durations from 9.3 to 10.9 hours, offering plenty of opportunities for outdoor activities. On top of this, the UV index during this time is at its highest, peaking at 6 in July, making it perfect for those seeking a healthy summer glow.
The worst time to visit Beaverton
Contrarily, the least favorable time to visit Beaverton, especially for tourists who want to avoid gloomy weather, would be between January and March. The weather during this period leans towards low temperatures from 35.1°F (1.7°C) to 38.1°F (3.4°C) and high humidity levels, reaching 83% in January. The average rainfall in these months escalates, peaking at 4.49" (114mm) in January. Additionally, snowfall makes an appearance and daylight and sunshine hours are at their lowest.
Spring weather in Beaverton
Spring in Beaverton rolls in from March to May. During this period, temperatures gradually rise from a pleasant 52.7°F (11.5°C) to a warm 67.6°F (19.8°C). Spring also sees a decrease in rainfall, falling from an average of 3.43" (87mm) in March to 1.69" (43mm) in May, signaling the end of the wet period.
Summer weather in Beaverton
Summer in Beaverton spans from June to August. This period is characterized by warm temperatures between 72.5°F (22.5°C) and 81.7°F (27.6°C). Local inhabitants and tourists can enjoy dry weather with rainfall less than 1.18" (30mm), and long, sun-filled days with sunshine hours peaking at 10.9 hours in August.
Autumn weather in Beaverton
Autumn introduces itself from September to November. Temperatures drop slowly from 74.3°F (23.5°C) in September to a cooler 50.9°F (10.5°C) in November. Rainfall begins to increase again in this period, particularly in November with 3.43" (87mm). Sunshine hours reduce, but offer enough daylight for enjoyable outdoor activities.
Winter weather in Beaverton
Winter chills Beaverton between December and February. Temperatures frequently dip between 35.1°F (1.7°C) to 35.4°F (1.9°C) in these months. Rainfall is at its peak during this season, along with the humidity level. On the bright side, the city dresses up in a snowy blanket with average snowfall recorded from 0.63" (16mm) to 1.61" (41mm), offering a picturesque view for those who appreciate winter aesthetics.
Weather in January
January in Beaverton, Oregon, tends to be a damp start to the year with cool temperatures and high humidity. Notably, the coldest minimum temperature of 35.1°F (1.7°C) occurs this month along with a sizable precipitation of 4.49" (114mm). Weather in January »
Weather in February
Come February, Beaverton experiences a small rebound in its winter blues. There is a slight increase in daily temperature, a bit higher than January’s. That said, the recorded snowfall increases to 1.61" (41mm), painting a white canvas intermittently. Weather in February »
Weather in March
Beaverton greets spring in March, as the temperatures begin to warm up and the landscape slowly sheds its winter hues. This month is known to bring in the maximum number of rainy days, with about 20.6 on average. It's a month of abundance, as the city witnesses an augmentation in hours of daylight, stronger winds and an increase in pressure. Weather in March »
Weather in April
April ends Beaverton’s snowy period, thus transitioning to shower dominant weather. It brings with it an increase in daily sunshine, up to 7.4 hours, and warming temperatures. The rainfall, though still significant, shows the first signs of reduction. Weather in April »
Weather in May
By May, Beaverton sinks into the essence of spring with even warmer temperatures. Rainfall plummets to 1.69" (43mm), the first notable decrease since the start of the year, making it the driest month yet. It’s the beginning of a dry spell as the frequency of rainy days reduces significantly. Weather in May »
Weather in June
June sees Beaverton embrace the summer with an increase in temperatures, reaching up to 72.5°F (22.5°C). The city experiences an additional drop in rainfall, bringing precipitation down to 1.18" (30mm). The lighter dampness allows for flourishing vegetation around the metropolis. Weather in June »
Weather in July
July is the month of extremes, with Beaverton reaching its hottest temperature of the year at 81.7°F (27.6°C), and the lowest relative humidity, a mere 64%. This month also witnesses the highest UV Index, making it vital for residents to protect their skin. Weather in July »
Weather in August
August continues the summer saga with warm temperatures and the least rainfall of 0.35" (9mm) for the year. The city landscape thrives under 10.9 hours of daily sunshine intoxicating the environment with vibrancy. Evenings offer a pleasant contrast with low temperature, creating a perfect balance in nature. Weather in August »
Weather in September
The transitional month of September slows down the pace of summer and inches towards autumn. The dry spell finally ends with a significant increase in precipitation to 1.54" (39mm). Warmer temperatures persist, but with a trend of gradual cooling. Weather in September »
Weather in October
October in Beaverton brings in the full splendor of fall with cooler temperatures and increased rainfall. The climate sees an upsurge to 3.31" (84mm) of rain, marking the onset of frequent showers. As the city pulls away from summer, a substantial reduction in daily sunshine hours is observed. Weather in October »
Weather in November
As November arrives, Beaverton gears up for the onset of winter. Keeping with the trend, this month witnesses a further decrease in temperature, dropping to a low of 39.9°F (4.4°C). The hint of winter is tangible, with a notable increase in both rainfall and cloud cover. Weather in November »
Weather in December
December announces the arrival of winter with a significant drop in average temperatures, down to 34.7°F (1.5°C). The city experiences the highest precipitation of the year, at 4.61" (117mm), carrying a hint of snow. The long nights curtailing daylight to a mere 8.8 hours, matched with 58% cloud cover, adds to the winter ambiance. Weather in December »
Updated: Jun 4, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How many days does it rain?
In Beaverton, during the entire year, the rain falls for 173.2 days and collects up to 30.55" (776mm) of precipitation.
When does it snow in Beaverton?
January through March, November and December are months with snowfall.
How many days does it snow?
Throughout the year, there are 6.1 snowfall days, and 4.37" (111mm) of snow is accumulated.
What are the months with the lowest UV index?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
What is the most humid month?
The months with the highest humidity are February and December, with an average relative humidity of 84%.
When does it snow the most?
The month with the most snowfall is February, when snow falls for 2.2 days and typically aggregates up to 1.61" (41mm) of snow.
What is the month with the least sunshine?
February has the least sunshine of the year, with an average of 3.9h of sunshine.
When is Daylight Saving Time (DST) in Beaverton?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from PDT to PST.
When it does not snow?
April through October are months without snowfall.
When are the longest days?
June has the longest days of the year, with an average of 15h and 36min of daylight.
What is the driest month?
July is the month with the least rainfall. Rain falls for 4.7 days and accumulates 0.31" (8mm) of precipitation.
When is the highest UV index?
The month with the highest UV index is July, with an average maximum UV index of 6.
What is the warmest month?
The highest temperatures are recorded in August, with averages reaching a high of 81.7°F (27.6°C) and a low of 55.6°F (13.1°C).
What is the least humid month in Beaverton?
August is the least humid month, with an average relative humidity of 63%.
What month has the most sunshine?
August has the most sunshine of the year, with an average of 10.9h of sunshine.
What are the coldest months?
With average high and low temperatures of 44.2°F (6.8°C) and 34.7°F (1.5°C) respectively, December is Beaverton's coldest month.
What is the rainiest month?
December is the month with the most rainfall. Rain falls for 18.7 days and accumulates 4.61" (117mm) of precipitation.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 8h and 48min of daylight.
Average temperature
Beaverton, OR
The warmest month (with the highest average high temperature) is August (81.7°F).
The month with the lowest average high temperature is December (44.2°F).
The month with the highest average low temperature is August (55.6°F).
The coldest month (with the lowest average low temperature) is December (34.7°F).
Average pressure
Beaverton, OR
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.08"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
30.07"Hg - Average pressure in May:
30.03"Hg - Average pressure in June:
30.03"Hg
- Average pressure in July:
30.04"Hg - Average pressure in August:
30.01"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.06"Hg - Average pressure in December:
30.1"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
Beaverton, OR
- Average wind speed in January:
5.4mph - Average wind speed in February:
5.3mph - Average wind speed in March:
5.2mph - Average wind speed in April:
4.8mph - Average wind speed in May:
4.3mph - Average wind speed in June:
4.2mph
- Average wind speed in July:
4.3mph - Average wind speed in August:
4mph - Average wind speed in September:
4.1mph - Average wind speed in October:
4.7mph - Average wind speed in November:
5.2mph - Average wind speed in December:
5.2mph
The windiest month (with the highest average wind speed) is January (5.4mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity
Beaverton, OR
The months with the highest relative humidity are February and December (84%).
The month with the lowest relative humidity is August (63%).
Average rainfall
Beaverton, OR
- Average rainfall in January:
4.49" - Average rainfall in February:
3.35" - Average rainfall in March:
3.43" - Average rainfall in April:
2.87" - Average rainfall in May:
1.69" - Average rainfall in June:
1.18"
- Average rainfall in July:
0.31" - Average rainfall in August:
0.35" - Average rainfall in September:
1.54" - Average rainfall in October:
3.31" - Average rainfall in November:
3.43" - Average rainfall in December:
4.61"
The wettest month (with the highest rainfall) is December (4.61").
The driest month (with the least rainfall) is July (0.31").
Average rainfall days
Beaverton, OR
- Average rainfall days in January:
18.5 days - Average rainfall days in February:
16.9 days - Average rainfall days in March:
20.6 days - Average rainfall days in April:
18.7 days - Average rainfall days in May:
13.8 days - Average rainfall days in June:
11.5 days
- Average rainfall days in July:
4.7 days - Average rainfall days in August:
4.6 days - Average rainfall days in September:
10.5 days - Average rainfall days in October:
15.9 days - Average rainfall days in November:
18.8 days - Average rainfall days in December:
18.7 days
The month with the highest number of rainy days is March (20.6 days).
The month with the least rainy days is August (4.6 days).
Average snowfall
Beaverton, OR
The month with the highest snowfall is February (1.61").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Beaverton, OR
- Average snowfall days in January:
1.3 days - Average snowfall days in February:
2.2 days - Average snowfall days in March:
1.5 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.3 days - Average snowfall days in December:
0.8 days
The month with the highest number of snowfall days is February (2.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Beaverton, OR
- Average daylight in January:
9h and 1min - Average daylight in February:
10h and 2min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 4min - Average daylight in May:
14h and 5min - Average daylight in June:
15h and 4min
- Average daylight in July:
15h and 2min - Average daylight in August:
14h and 0min - Average daylight in September:
12h and 3min - Average daylight in October:
10h and 5min - Average daylight in November:
9h and 3min - Average daylight in December:
8h 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 January:
4h and 0min - Average sunshine in February:
3h and 5min - Average sunshine in March:
5h and 4min - Average sunshine in April:
7h and 2min - Average sunshine in May:
8h and 4min - Average sunshine in June:
9h and 2min
- Average sunshine in July:
10h and 5min - Average sunshine in August:
10h and 5min - Average sunshine in September:
9h and 1min - Average sunshine in October:
5h and 2min - Average sunshine in November:
4h and 4min - Average sunshine in December:
4h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).
Average sunshine days
Beaverton, OR
- Average sunshine days in January:
11 days - Average sunshine days in February:
8.9 days - Average sunshine days in March:
8.6 days - Average sunshine days in April:
9.3 days - Average sunshine days in May:
15.8 days - Average sunshine days in June:
15.9 days
- Average sunshine days in July:
24.9 days - Average sunshine days in August:
24.6 days - Average sunshine days in September:
17.9 days - Average sunshine days in October:
14 days - Average sunshine days in November:
10.4 days - Average sunshine days in December:
10.3 days
The month with the most sunshine days is July (24.9 days).
The month with the least sunshine days is March (8.6 days).
Average UV index
Beaverton, OR
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
Beaverton, OR
The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility
Beaverton, OR
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).
Beaverton, Oregon, USA
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