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Contents
- 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
Weather in January
January, like December, is another chilly winter month in Sunnyside, Oregon, with temperature in the range of an average high of 46.2°F (7.9°C) and an average low of 35.2°F (1.8°C). Sunnyside starts January with an average high-temperature of a still frosty 46.2°F (7.9°C), hinting at a minimal fluctuation from December. Weather in January »
Weather in February
The last month of the winter, February, is another chilly month in Sunnyside, Oregon, with temperature in the range of an average high of 47.1°F (8.4°C) and an average low of 35.1°F (1.7°C). Transitioning into February, Sunnyside experiences an average high-temperature of a still chilly 47.1°F (8.4°C), marking a minor shift from the preceding month. Weather in February »
Weather in March
March, the first month of the spring in Sunnyside, is a cool month, with temperature in the range of an average low of 37.8°F (3.2°C) and an average high of 52.2°F (11.2°C). In March, the average high-temperature registers at a cool 52.2°F (11.2°C), nearly identical to February's 47.1°F (8.4°C). Weather in March »
Weather in April
April in Sunnyside, Oregon, is a mild spring month, with an average temperature varying between 58.5°F (14.7°C) and 39.4°F (4.1°C). Sunnyside's April weather indicates a minor increase in high-temperatures, edging from March's cool 52.2°F (11.2°C) to a mild 58.5°F (14.7°C). Weather in April »
Weather in May
The last month of the spring, May, is a refreshing month in Sunnyside, Oregon, with an average temperature varying between 66.6°F (19.2°C) and 43.5°F (6.4°C). May sees a marginal temperature increase, moving from a mild 58.5°F (14.7°C) in April to a comfortable 66.6°F (19.2°C). Weather in May »
Weather in June
The first month of the summer, June, is an agreeable month in Sunnyside, Oregon, with temperature in the range of an average high of 71.8°F (22.1°C) and an average low of 47.5°F (8.6°C). June records an average high-temperature of a pleasant 71.8°F (22.1°C), indicating a minor variation from the preceding month. Weather in June »
Weather in July
July is a warm summer month in Sunnyside, Oregon, with an average temperature ranging between max 80.2°F (26.8°C) and min 51.6°F (10.9°C). The embrace of July brings a minor uplift in the average high-temperature, shifting from an agreeable 71.8°F (22.1°C) in June to a warm 80.2°F (26.8°C). Weather in July »
Weather in August
August, the last month of the summer in Sunnyside, is another warm month, with temperature in the range of an average high of 81.1°F (27.3°C) and an average low of 54°F (12.2°C). The warmest period tends to be August, when average temperatures fluctuate between a high of 81.1°F (27.3°C) and a low of 54°F (12.2°C). Throughout August, the heat index is calculated to be 84.2°F (29°C). Weather in August »
Weather in September
September, the first month of the autumn in Sunnyside, is still a warm month, with temperature in the range of an average low of 50.5°F (10.3°C) and an average high of 73.6°F (23.1°C). The onset of September brings a small shift in high-temperatures, falling from a moderately hot 81.1°F (27.3°C) in August to a still warm 73.6°F (23.1°C). Weather in September »
Weather in October
October, like September, in Sunnyside, Oregon, is another refreshing autumn month, with temperature in the range of an average high of 61.3°F (16.3°C) and an average low of 45.1°F (7.3°C). The shift from September to October involves a decrease in the average high-temperature, dropping from a warm 73.6°F (23.1°C) to an enjoyable 61.3°F (16.3°C). Weather in October »
Weather in November
November, the last month of the autumn in Sunnyside, is another cool month, with an average temperature varying between 50.9°F (10.5°C) and 39.7°F (4.3°C). The arrival of November signals a shift in temperature, down from a comfortable 61.3°F (16.3°C) in October to a fresh 50.9°F (10.5°C). Weather in November »
Weather in December
The first month of the winter, December, is also a frosty month in Sunnyside, Oregon, with an average temperature ranging between max 44.4°F (6.9°C) and min 34.3°F (1.3°C). December is the coldest month of the year, registering average temperatures as high as 44.4°F (6.9°C) and as low as 34.3°F (1.3°C). Weather in December »
Updated: Jul 15, 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 much does it rain?
Throughout the year, there are 169.9 rainfall days, and 32.76" (832mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through March, November and December.
How much does it snow in Sunnyside?
Throughout the year, there are 6.1 snowfall days, and 4.17" (106mm) of snow is accumulated.
What are the months with the lowest UV index?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the most humid month?
The most humid month is February, with an average relative humidity of 84%.
What is the snowiest month?
The month with the most snowfall is February, when snow falls for 2.3 days and typically aggregates up to 1.5" (38mm) of snow.
What is the month with the least sunshine?
With an average of 4.3h of sunshine, February has the least sunshine of the year in Sunnyside.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Sunnyside, 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?
The month with the longest days is June, with an average of 15h and 36min of daylight.
What is the driest month?
The month with the least rainfall in Sunnyside is July, when the rain falls for 4.3 days and typically collects 0.24" (6mm) of precipitation.
When is the highest UV index?
With an average maximum UV index of 6, July is the month with the highest UV index.
What time of the year is the hottest?
August, recognised by an average high temperature of 81.1°F (27.3°C) and a low of 54°F (12.2°C), is Sunnyside's warmest month.
What is the least humid month?
With an average relative humidity of 64%, August is the least humid month.
What month has the most sunshine?
With an average of 11.1h of sunshine, August has the most sunshine of the year.
What month is the coldest?
December, characterized by an average high temperature of 44.4°F (6.9°C) and a low temperature of 34.3°F (1.3°C), is generally the coldest month.
What is the rainiest month?
December is the month with the most rainfall. Rain falls for 19.2 days and accumulates 5.16" (131mm) of precipitation.
What is the month with the shortest days in Sunnyside?
December has the shortest days of the year in Sunnyside, with an average of 8h and 48min of daylight.
Average temperature
Sunnyside, OR
The warmest month (with the highest average high temperature) is August (81.1°F).
The month with the lowest average high temperature is December (44.4°F).
The month with the highest average low temperature is August (54°F).
The coldest month (with the lowest average low temperature) is December (34.3°F).
Average pressure
Sunnyside, OR
- Average pressure in January:
30.12"Hg - Average pressure in February:
30.08"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
30.06"Hg - Average pressure in May:
30.03"Hg - Average pressure in June:
30.03"Hg
- Average pressure in July:
30.03"Hg - Average pressure in August:
30"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:
30.11"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed
Sunnyside, OR
- Average wind speed in January:
6mph - Average wind speed in February:
5.7mph - Average wind speed in March:
5.5mph - Average wind speed in April:
4.8mph - Average wind speed in May:
4.1mph - Average wind speed in June:
4mph
- Average wind speed in July:
3.8mph - Average wind speed in August:
3.5mph - Average wind speed in September:
3.9mph - Average wind speed in October:
4.7mph - Average wind speed in November:
5.7mph - Average wind speed in December:
5.7mph
The windiest month (with the highest average wind speed) is January (6mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).
Average humidity
Sunnyside, OR
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is August (64%).
Average rainfall
Sunnyside, OR
- Average rainfall in January:
4.72" - Average rainfall in February:
3.74" - Average rainfall in March:
3.86" - Average rainfall in April:
3.23" - Average rainfall in May:
1.81" - Average rainfall in June:
1.18"
The wettest month (with the highest rainfall) is December (5.16").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days
Sunnyside, OR
- Average rainfall days in January:
18.4 days - Average rainfall days in February:
17.3 days - Average rainfall days in March:
20.3 days - Average rainfall days in April:
18.7 days - Average rainfall days in May:
13.7 days - Average rainfall days in June:
10.5 days
- Average rainfall days in July:
4.3 days - Average rainfall days in August:
4 days - Average rainfall days in September:
9.5 days - Average rainfall days in October:
15.2 days - Average rainfall days in November:
18.8 days - Average rainfall days in December:
19.2 days
The month with the highest number of rainy days is March (20.3 days).
The month with the least rainy days is August (4 days).
Average snowfall
Sunnyside, OR
The month with the highest snowfall is February (1.5").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Sunnyside, OR
- Average snowfall days in January:
1.3 days - Average snowfall days in February:
2.3 days - Average snowfall days in March:
1.3 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:
0.9 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 / Average sunshine
Sunnyside, 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 2min - Average sunshine in February:
4h and 2min - Average sunshine in March:
5h and 5min - Average sunshine in April:
7h and 5min - Average sunshine in May:
9h and 0min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
11h and 0min - Average sunshine in August:
11h and 1min - Average sunshine in September:
9h and 2min - Average sunshine in October:
5h and 4min - Average sunshine in November:
4h and 5min - Average sunshine in December:
4h and 2min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days
Sunnyside, OR
- Average sunshine days in January:
11.1 days - Average sunshine days in February:
8.1 days - Average sunshine days in March:
8.8 days - Average sunshine days in April:
9.7 days - Average sunshine days in May:
15.8 days - Average sunshine days in June:
17.4 days
- Average sunshine days in July:
26.2 days - Average sunshine days in August:
25.3 days - Average sunshine days in September:
19 days - Average sunshine days in October:
14.6 days - Average sunshine days in November:
9.7 days - Average sunshine days in December:
10.5 days
The month with the most sunshine days is July (26.2 days).
The month with the least sunshine days is February (8.1 days).
Average UV index
Sunnyside, 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
Sunnyside, OR
The month with the most cloud cover is February (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility
Sunnyside, OR
The months with the highest visibility are July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, April, May, June, November and December (5mi).
Sunnyside, Oregon, USA
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