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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, the same as December, is another cold winter month in White Swan, Washington, with temperature in the range of an average high of 36.1°F (2.3°C) and an average low of 24.8°F (-4°C). With the transition into January, White Swan notes an average high-temperature of a still cold 36.1°F (2.3°C), closely resembling December. Weather in January »
Weather in February
February, the last month of the winter in White Swan, is also an icy month, with temperature in the range of an average low of 27°F (-2.8°C) and an average high of 39.4°F (4.1°C). The onset of February manifests an average high-temperature of a still cold 39.4°F (4.1°C), demonstrating a minor variation from the preceding month. Weather in February »
Weather in March
March, the first month of the spring in White Swan, is a chilly month, with temperature in the range of an average high of 46°F (7.8°C) and an average low of 31.6°F (-0.2°C). In March, the meteorological conditions subtly change with the average high-temperature edging from a wintry 39.4°F (4.1°C) in February to a frosty 46°F (7.8°C). Weather in March »
Weather in April
April is a cool spring month in White Swan, Washington, with an average temperature varying between 36.7°F (2.6°C) and 55.2°F (12.9°C). April sees a rise in the average high-temperature, climbing from a frosty 46°F (7.8°C) in March to a cool 55.2°F (12.9°C). Weather in April »
Weather in May
May, the last month of the spring in White Swan, is a refreshing month, with an average temperature ranging between min 44.1°F (6.7°C) and max 65.8°F (18.8°C). May shows a rise in the average high-temperature, moving from April's fresh 55.2°F (12.9°C) to a comfortable 65.8°F (18.8°C). Weather in May »
Weather in June
The first month of the summer, June, is a pleasant month in White Swan, Washington, with an average temperature ranging between min 49.3°F (9.6°C) and max 73°F (22.8°C). June signifies a subtle uplift in the average high-temperature, adjusting from a refreshing 65.8°F (18.8°C) in May to an agreeable 73°F (22.8°C). Weather in June »
Weather in July
July in White Swan, Washington, is a moderately hot summer month, with an average temperature fluctuating between 55.9°F (13.3°C) and 82.9°F (28.3°C). July's arrival signals an increase in average high-temperatures, moving from June's pleasant 73°F (22.8°C) to a moderately hot 82.9°F (28.3°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in White Swan, Washington, with an average temperature fluctuating between 56.8°F (13.8°C) and 83.1°F (28.4°C). Temperature readings reach their annual highs in August, averaging 83.1°F (28.4°C) and a minimum average of 56.8°F (13.8°C). The average heat index in August is computed to be 82.4°F (28°C). Weather in August »
Weather in September
September, the first month of the autumn in White Swan, is still a pleasant month, with temperature in the range of an average high of 72°F (22.2°C) and an average low of 50°F (10°C). Welcoming September, White Swan observes a shift in the average high-temperature, falling from August's moderately hot 83.1°F (28.4°C) to an agreeable 72°F (22.2°C). Weather in September »
Weather in October
October, like September, is another mild autumn month in White Swan, Washington, with temperature in the range of an average low of 40.5°F (4.7°C) and an average high of 57.4°F (14.1°C). The start of October signals a considerable reduction in the average high-temperature, receding from an agreeable 72°F (22.2°C) in September to a refreshing 57.4°F (14.1°C). Weather in October »
Weather in November
The last month of the autumn, November, is another chilly month in White Swan, Washington, with an average temperature ranging between min 31.1°F (-0.5°C) and max 44.1°F (6.7°C). Onset of November witnesses a reduction in the average high-temperature, falling from a mild 57.4°F (14.1°C) in October to a frosty 44.1°F (6.7°C). Weather in November »
Weather in December
December, the first month of the winter in White Swan, is still a cold month, with an average temperature varying between 23.9°F (-4.5°C) and 35.2°F (1.8°C). December, having an average high-temperature of 35.2°F (1.8°C) and an average low-temperature of 23.9°F (-4.5°C), is the coldest month. Weather in December »
Updated: Jul 3, 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
What is the most humid month?
January is the most humid month, with an average relative humidity of 84%.
What is the rainiest month?
The month with the most rainfall is January, when the rain falls for 11.9 days and typically aggregates up to 1.61" (41mm) of precipitation.
How many days does it rain?
In White Swan, Washington, during the entire year, the rain falls for 112.8 days and collects up to 10.28" (261mm) of precipitation.
When does it snow?
Months with snowfall are January through April, September, November and December.
How many days does it snow?
Throughout the year, there are 19.9 snowfall days, and 12.36" (314mm) of snow is accumulated.
What is the month with the least sunshine in White Swan?
The month with the least sunshine is January, with an average of 5.4h of sunshine.
What is the month 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 snowiest month?
The month with the most snowfall is February, when snow falls for 5 days and typically aggregates up to 3.5" (89mm) of snow.
When is Daylight Saving Time (DST)?
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?
May through August and October are months without snowfall.
When are the longest days?
With an average of 15h and 42min of daylight, June has the longest days of the year.
What is the driest month?
July is the month with the least rainfall. Rain falls for 3.1 days and accumulates 0.12" (3mm) of precipitation.
What are the months with the most sunshine?
The months with the most sunshine are July and August, with an average of 12.1h of sunshine.
When is the highest UV index?
The month with the highest UV index in White Swan is July, with an average maximum UV index of 6.
What is the warmest month in White Swan?
August tends to be the warmest month, with temperatures averaging a daily high of 83.1°F (28.4°C) and a low of 56.8°F (13.8°C).
What is the least humid month?
August is the least humid month, with an average relative humidity of 43%.
What month is the coldest?
December, with an average high of 35.2°F (1.8°C) and a low of 23.9°F (-4.5°C), signifies the coldest month of the year in White Swan.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 8h and 42min of daylight.
Average temperature
White Swan, WA
The warmest month (with the highest average high temperature) is August (83.1°F).
The month with the lowest average high temperature is December (35.2°F).
The month with the highest average low temperature is August (56.8°F).
The coldest month (with the lowest average low temperature) is December (23.9°F).
Average pressure
White Swan, WA
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
30.02"Hg - Average pressure in April:
30.02"Hg - Average pressure in May:
29.97"Hg - Average pressure in June:
29.96"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.94"Hg - Average pressure in September:
29.97"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.08"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.94"Hg).
Average wind speed
White Swan, WA
- Average wind speed in January:
4.6mph - Average wind speed in February:
5.1mph - Average wind speed in March:
6.2mph - Average wind speed in April:
6.9mph - Average wind speed in May:
6.5mph - Average wind speed in June:
6.8mph
- Average wind speed in July:
6.3mph - Average wind speed in August:
6.2mph - Average wind speed in September:
5.9mph - Average wind speed in October:
5.3mph - Average wind speed in November:
5.1mph - Average wind speed in December:
4.5mph
The windiest month (with the highest average wind speed) is April (6.9mph).
The calmest month (with the lowest average wind speed) is December (4.5mph).
Average humidity
White Swan, WA
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (43%).
Average rainfall
White Swan, WA
- Average rainfall in January:
1.61" - Average rainfall in February:
1.18" - Average rainfall in March:
1.14" - Average rainfall in April:
0.59" - Average rainfall in May:
0.98" - Average rainfall in June:
0.43"
- Average rainfall in July:
0.12" - Average rainfall in August:
0.28" - Average rainfall in September:
0.47" - Average rainfall in October:
0.94" - Average rainfall in November:
0.94" - Average rainfall in December:
1.57"
The wettest month (with the highest rainfall) is January (1.61").
The driest month (with the least rainfall) is July (0.12").
Average rainfall days
White Swan, WA
- Average rainfall days in January:
11.9 days - Average rainfall days in February:
11.4 days - Average rainfall days in March:
13.7 days - Average rainfall days in April:
12.1 days - Average rainfall days in May:
10.3 days - Average rainfall days in June:
6.6 days
- Average rainfall days in July:
3.1 days - Average rainfall days in August:
3.8 days - Average rainfall days in September:
6.5 days - Average rainfall days in October:
11.6 days - Average rainfall days in November:
11.2 days - Average rainfall days in December:
10.6 days
The month with the highest number of rainy days is March (13.7 days).
The month with the least rainy days is July (3.1 days).
Average snowfall
White Swan, WA
The month with the highest snowfall is February (3.5").
The months with the least snowfall are May, June, July, August and October (0").
Average snowfall days
White Swan, WA
- Average snowfall days in January:
4.8 days - Average snowfall days in February:
5 days - Average snowfall days in March:
2.3 days - Average snowfall days in April:
0.3 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:
1.9 days - Average snowfall days in December:
5.5 days
The month with the highest number of snowfall days is December (5.5 days).
The months with the least snowfall days are May, June, July, August and October (0 days).
Average daylight / Average sunshine
White Swan, 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:
5h and 2min - Average sunshine in February:
5h and 5min - Average sunshine in March:
8h and 1min - Average sunshine in April:
10h and 3min - Average sunshine in May:
11h and 2min - Average sunshine in June:
11h and 5min
- Average sunshine in July:
12h and 1min - Average sunshine in August:
12h and 1min - Average sunshine in September:
10h and 5min - Average sunshine in October:
6h and 5min - Average sunshine in November:
6h and 2min - Average sunshine in December:
5h and 4min
The months with the most sunshine are July and August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days
White Swan, WA
- Average sunshine days in January:
14.3 days - Average sunshine days in February:
12.6 days - Average sunshine days in March:
13.3 days - Average sunshine days in April:
14.7 days - Average sunshine days in May:
17.6 days - Average sunshine days in June:
21.3 days
- Average sunshine days in July:
25.9 days - Average sunshine days in August:
24.6 days - Average sunshine days in September:
21.1 days - Average sunshine days in October:
17.3 days - Average sunshine days in November:
15.1 days - Average sunshine days in December:
15.9 days
The month with the most sunshine days is July (25.9 days).
The month with the least sunshine days is February (12.6 days).
Average UV index
White Swan, WA
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
White Swan, WA
The month with the most cloud cover is January (Cloud cover 44).
The months with the least cloud cover are July and August (Cloud cover 9).
Average visibility
White Swan, 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).
White Swan, Washington, USA
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