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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, in Sunnyside, Washington, is another cold winter month, with temperature in the range of an average low of 26.6°F (-3°C) and an average high of 36.5°F (2.5°C). With the onset of January, the average high-temperature registers at a still cold 36.5°F (2.5°C), subtly different from December's 36.1°F (2.3°C). Weather in January »
Weather in February
The last month of the winter, February, is another cold month in Sunnyside, Washington, with temperature in the range of an average high of 42.1°F (5.6°C) and an average low of 29.8°F (-1.2°C). In Sunnyside, the average high-temperature in February slightly rises, from 36.5°F (2.5°C) in January, to a still cold 42.1°F (5.6°C). Weather in February »
Weather in March
March, the first month of the spring in Sunnyside, is a fresh month, with an average temperature varying between 35.8°F (2.1°C) and 50.9°F (10.5°C). The arrival of March brings a soft temperature shift, with the average high-temperature nudging from an icy 42.1°F (5.6°C) in February to a fresh 50.9°F (10.5°C). Weather in March »
Weather in April
April in Sunnyside, Washington, is a moderate spring month, with an average temperature fluctuating between 60.4°F (15.8°C) and 41.4°F (5.2°C). The start of April signals an increase in the average high-temperature, moving from a fresh 50.9°F (10.5°C) in March to a mild 60.4°F (15.8°C). Weather in April »
Weather in May
The last month of the spring, May, is a pleasant month in Sunnyside, Washington, with temperature in the range of an average low of 48.7°F (9.3°C) and an average high of 70.3°F (21.3°C). Sunnyside's May weather shows an increase in high-temperatures, moving from April's mild 60.4°F (15.8°C) to an agreeable 70.3°F (21.3°C). Weather in May »
Weather in June
The first month of the summer, June, is a moderately hot month in Sunnyside, Washington, with an average temperature varying between 77.7°F (25.4°C) and 54.1°F (12.3°C). Sunnyside's weather in June shows a minor rise in the average high-temperature, moving slightly up from May's pleasant 70.3°F (21.3°C) to a warm 77.7°F (25.4°C). Weather in June »
Weather in July
July is a tropical summer month in Sunnyside, Washington, with an average temperature varying between 87.1°F (30.6°C) and 60.8°F (16°C). With average temperatures fluctuating between a high of 87.1°F (30.6°C) and a low of 60.8°F (16°C), July stands out as the warmest month. Weather in July »
Weather in August
August, the last month of the summer in Sunnyside, is another tropical month, with temperature in the range of an average high of 86.2°F (30.1°C) and an average low of 61.5°F (16.4°C). Sunnyside commences August with an average high-temperature of a still tropical 86.2°F (30.1°C), maintaining a close resemblance to the previous month. Weather in August »
Weather in September
September, the first month of the autumn in Sunnyside, is still a warm month, with an average temperature varying between 75.4°F (24.1°C) and 54.9°F (12.7°C). The transition into September involves a decrease in the average high-temperature, falling from a hot 86.2°F (30.1°C) in August to a moderately hot 75.4°F (24.1°C). Weather in September »
Weather in October
October, like September, is another refreshing autumn month in Sunnyside, Washington, with an average temperature ranging between max 60.1°F (15.6°C) and min 44.1°F (6.7°C). In October, the average high-temperature decreases considerably from a moderately hot 75.4°F (24.1°C) in September to a moderate 60.1°F (15.6°C). Weather in October »
Weather in November
November, the last month of the autumn in Sunnyside, is also a frosty month, with an average temperature fluctuating between 33.6°F (0.9°C) and 46.6°F (8.1°C). Sunnyside, Washington, observes a minor decrease in the average high-temperature with the arrival of November, falling from October's refreshing 60.1°F (15.6°C) to a frosty 46.6°F (8.1°C). Weather in November »
Weather in December
The first month of the winter, December, is also an icy month in Sunnyside, Washington, with an average temperature varying between 25.3°F (-3.7°C) and 36.1°F (2.3°C). December, known for its average high temperature of 36.1°F (2.3°C) and an average low temperature of 25.3°F (-3.7°C), is the coldest month. Weather in December »
[Resources]Frequently asked questions
What is the most humid month in Sunnyside?
The most humid month is January, with an average relative humidity of 83%.
How much does it rain in Sunnyside?
In Sunnyside, during the entire year, the rain falls for 104.5 days and collects up to 8.23" (209mm) of precipitation.
When does it snow in Sunnyside?
Months with snowfall in Sunnyside are January through March, September, November and December.
How many days does it snow in Sunnyside?
In Sunnyside, Washington, during the entire year, snow falls for 15.6 days and aggregates up to 7.36" (187mm) of snow.
What is the month with the least sunshine in Sunnyside?
The month with the least sunshine in Sunnyside is January, with an average of 4.9h of sunshine.
When is the lowest UV index in Sunnyside?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
When is Daylight Saving Time (DST) in Sunnyside?
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 in Sunnyside?
In Sunnyside, Washington, snow does not fall in April through August and October.
What is the wettest month in Sunnyside?
The month with the most rainfall is May, when the rain falls for 10.3 days and typically aggregates up to 1.1" (28mm) of precipitation.
When are the longest days in Sunnyside?
June has the longest days of the year, with an average of 15h and 42min of daylight.
What is the month with the highest UV index in Sunnyside?
June through August, with an average maximum UV index of 6, are months with the highest UV index in Sunnyside.
What time of the year is the hottest in Sunnyside?
The warmest temperatures in Sunnyside, Washington, occur during July, when averages reach a peak of 87.1°F (30.6°C) and a low of 60.8°F (16°C).
What is the least humid month in Sunnyside?
July and August, with an average relative humidity of 38%, are the least humid months in Sunnyside.
What is the driest month in Sunnyside?
The month with the least rainfall is July, when the rain falls for 4.1 days and typically collects 0.24" (6mm) of precipitation.
What is the month with the most sunshine in Sunnyside?
The months with the most sunshine in Sunnyside are July and August, with an average of 12h of sunshine.
What time of the year is the coldest in Sunnyside?
The coldest month is December, with an average high-temperature of 36.1°F (2.3°C) and an average low-temperature of 25.3°F (-3.7°C).
When does it snow the most in Sunnyside?
The month with the most snowfall is December, when snow falls for 5 days and typically aggregates up to 2.24" (57mm) of snow.
What is the month with the shortest days in Sunnyside?
With an average of 8h and 42min of daylight, December has the shortest days of the year in Sunnyside.
Average temperature
Sunnyside, WA
The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is December (36.1°F).
The month with the highest average low temperature is August (61.5°F).
The coldest month (with the lowest average low temperature) is December (25.3°F).
Average pressure
Sunnyside, WA
- Average pressure in January:
30.17"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
30"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.94"Hg - Average pressure in August:
29.92"Hg - Average pressure in September:
29.96"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.08"Hg - Average pressure in December:
30.15"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is August (29.92"Hg).
Average wind speed
Sunnyside, WA
- Average wind speed in January:
5.2mph - Average wind speed in February:
6.1mph - Average wind speed in March:
7.3mph - Average wind speed in April:
8.3mph - Average wind speed in May:
7.5mph - Average wind speed in June:
7.8mph
- Average wind speed in July:
6.8mph - Average wind speed in August:
6.6mph - Average wind speed in September:
6.6mph - Average wind speed in October:
6.2mph - Average wind speed in November:
6mph - Average wind speed in December:
5mph
The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is December (5mph).
Average humidity
Sunnyside, WA
The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are July and August (38%).
Average rainfall
Sunnyside, WA
- Average rainfall in January:
1.06" - Average rainfall in February:
0.79" - Average rainfall in March:
0.83" - Average rainfall in April:
0.51" - Average rainfall in May:
1.1" - Average rainfall in June:
0.63"
- Average rainfall in July:
0.24" - Average rainfall in August:
0.31" - Average rainfall in September:
0.35" - Average rainfall in October:
0.75" - Average rainfall in November:
0.59" - Average rainfall in December:
1.06"
The wettest month (with the highest rainfall) is May (1.1").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days
Sunnyside, WA
- Average rainfall days in January:
10.8 days - Average rainfall days in February:
8.3 days - Average rainfall days in March:
13.3 days - Average rainfall days in April:
10.4 days - Average rainfall days in May:
10.3 days - Average rainfall days in June:
7.1 days
- Average rainfall days in July:
4.1 days - Average rainfall days in August:
4.4 days - Average rainfall days in September:
5.5 days - Average rainfall days in October:
9.8 days - Average rainfall days in November:
10.1 days - Average rainfall days in December:
10.4 days
The month with the highest number of rainy days is March (13.3 days).
The month with the least rainy days is July (4.1 days).
Average snowfall
Sunnyside, WA
The month with the highest snowfall is December (2.24").
The months with the least snowfall are April, May, June, July, August and October (0").
Average snowfall days
Sunnyside, WA
- Average snowfall days in January:
4.6 days - Average snowfall days in February:
3.6 days - Average snowfall days in March:
1.1 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:
0.1 days - Average snowfall days in October:
0 days - Average snowfall days in November:
1.2 days - Average snowfall days in December:
5 days
The month with the highest number of snowfall days is December (5 days).
The months with the least snowfall days are April, May, June, July, August and October (0 days).
Average daylight / Average sunshine
Sunnyside, WA
- 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:
15h and 0min - Average daylight in June:
15h and 4min
- Average daylight in July:
15h and 2min - Average daylight in August:
14h and 1min - Average daylight in September:
12h and 3min - Average daylight in October:
10h and 5min - Average daylight in November:
9h and 2min - Average daylight in December:
8h and 4min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in January:
4h and 5min - Average sunshine in February:
5h and 2min - Average sunshine in March:
7h and 3min - Average sunshine in April:
9h and 5min - Average sunshine in May:
10h and 4min - Average sunshine in June:
11h and 3min
- Average sunshine in July:
12h and 0min - Average sunshine in August:
12h and 0min - Average sunshine in September:
10h and 4min - Average sunshine in October:
6h and 4min - Average sunshine in November:
6h and 0min - Average sunshine in December:
5h and 1min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days
Sunnyside, WA
- Average sunshine days in January:
15.9 days - Average sunshine days in February:
15.8 days - Average sunshine days in March:
15.4 days - Average sunshine days in April:
17.2 days - Average sunshine days in May:
18.7 days - Average sunshine days in June:
21.1 days
- Average sunshine days in July:
26.2 days - Average sunshine days in August:
24 days - Average sunshine days in September:
22.6 days - Average sunshine days in October:
19.3 days - Average sunshine days in November:
17.3 days - Average sunshine days in December:
16.2 days
The month with the most sunshine days is July (26.2 days).
The month with the least sunshine days is March (15.4 days).
Average UV index
Sunnyside, WA
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Sunnyside, WA
The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 10).
Average visibility
Sunnyside, WA
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).
Sunnyside, Washington, USA
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