Expand
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 is a frosty winter month in Oso, Washington, with an average temperature ranging between min 34.7°F (1.5°C) and max 43.3°F (6.3°C). The dawn of January sees an average high-temperature of a frosty 43.3°F (6.3°C), subtly contrasting with December's 41.7°F (5.4°C). Weather in January »
Weather in February
The last month of the winter, February, is another chilly month in Oso, Washington, with temperature in the range of an average low of 33.8°F (1°C) and an average high of 44.2°F (6.8°C). Oso experiences a subtle adjustment in high-temperatures to a still chilly 44.2°F (6.8°C) with the onset of February, maintaining near parity with January's 43.3°F (6.3°C). Weather in February »
Weather in March
March, the first month of the spring in Oso, is also a frosty month, with an average temperature varying between 36.3°F (2.4°C) and 48.4°F (9.1°C). Oso's March showcases an average high-temperature of a still frosty 48.4°F (9.1°C), hardly distinct from February's 44.2°F (6.8°C). Weather in March »
Weather in April
April in Oso, Washington, is a cool spring month, with temperature in the range of an average low of 39.4°F (4.1°C) and an average high of 53.6°F (12°C). Oso experiences an average high-temperature of a fresh 53.6°F (12°C) with the onset of April, subtly varied from March's 48.4°F (9.1°C). Weather in April »
Weather in May
The last month of the spring, May, is an enjoyable month in Oso, Washington, with an average temperature ranging between max 61.3°F (16.3°C) and min 43.7°F (6.5°C). May brings a slight elevation in the average high-temperature, transitioning from April's fresh 53.6°F (12°C) to a refreshing 61.3°F (16.3°C). Weather in May »
Weather in June
June, the first month of the summer in Oso, is still a refreshing month, with an average temperature ranging between max 66°F (18.9°C) and min 47.1°F (8.4°C). The start of June marks an average high-temperature of a still refreshing 66°F (18.9°C), hardly distinguishable from the conditions in May. Weather in June »
Weather in July
July is a pleasant summer month in Oso, Washington, with temperature in the range of an average high of 72°F (22.2°C) and an average low of 50.5°F (10.3°C). As July sets, the average high-temperature shows a slight increase, moving up from a refreshing 66°F (18.9°C) in June to an agreeable 72°F (22.2°C). Weather in July »
Weather in August
August, the last month of the summer in Oso, is also an agreeable month, with an average temperature ranging between max 72.3°F (22.4°C) and min 51.6°F (10.9°C). In Oso, Washington, August is identified by the highest average temperatures, reaching a peak of 72.3°F (22.4°C) and a low of 51.6°F (10.9°C). Weather in August »
Weather in September
The first month of the autumn, September, is also an enjoyable month in Oso, Washington, with an average temperature fluctuating between 66.2°F (19°C) and 49.1°F (9.5°C). The onset of September results in a small decrease in the average high-temperature, moderately receding from a pleasant 72.3°F (22.4°C) in August to a refreshing 66.2°F (19°C). Weather in September »
Weather in October
October, like September, is a moderate autumn month in Oso, Washington, with temperature in the range of an average low of 43.3°F (6.3°C) and an average high of 56.3°F (13.5°C). The commencement of October involves a temperature shift, with the average high-temperature dropping from a comfortable 66.2°F (19°C) in September to a mild 56.3°F (13.5°C). Weather in October »
Weather in November
November, the last month of the autumn in Oso, is another chilly month, with temperature in the range of an average low of 38.5°F (3.6°C) and an average high of 46.9°F (8.3°C). With November's onset, the average high-temperature recedes from October's refreshing 56.3°F (13.5°C) to a chilly 46.9°F (8.3°C). Weather in November »
Weather in December
December, the first month of the winter in Oso, is also an icy month, with an average temperature varying between 41.7°F (5.4°C) and 34°F (1.1°C). December, with its high-temperature average of 41.7°F (5.4°C) and a low-temperature average of 34°F (1.1°C), is the coldest month. Weather in December »
Updated: Feb 14, 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 are the most humid months in Oso?
The months with the highest humidity are January, February, November and December, with an average relative humidity of 85%.
How many days does it rain in Oso?
Throughout the year, in Oso, Washington, there are 188.6 rainfall days, and 34.92" (887mm) of precipitation is accumulated.
When does it snow in Oso?
January through April, November and December are months with snowfall.
How much does it snow in Oso?
Throughout the year, there are 11.6 snowfall days, and 9.61" (244mm) of snow is accumulated.
What are the months with the lowest UV index in Oso?
January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Oso, Washington.
When does it snow the most in Oso?
February is the month with the most snowfall. Snow falls for 4.3 days and accumulates 4.45" (113mm) of snow.
When is Daylight Saving Time (DST) in Oso?
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 in Oso?
May through October are months without snowfall.
When are the longest days in Oso?
With an average of 16h and 0min of daylight, June has the longest days of the year.
What is the least humid month in Oso?
July is the least humid month, with an average relative humidity of 73%.
What is the driest month in Oso?
The month with the least rainfall is July, when the rain falls for 8 days and typically collects 0.51" (13mm) of precipitation.
When is the highest UV index in Oso?
The month with the highest UV index in Oso is July, with an average maximum UV index of 5.
What part of the year is the hottest in Oso?
Temperature readings in Oso, Washington, reach their annual highs in August, averaging 72.3°F (22.4°C) and a minimum average of 51.6°F (10.9°C).
What month has the most sunshine in Oso?
With an average of 10.7h of sunshine, August has the most sunshine of the year in Oso, Washington.
What is the wettest month in Oso?
November is the month with the most rainfall in Oso. Rain falls for 20.2 days and accumulates 4.92" (125mm) of precipitation.
What is the coldest month in Oso?
December, marked by an average high-temperature of 41.7°F (5.4°C) and a low-temperature of 34°F (1.1°C), is the coldest month.
What is the month with the shortest days in Oso?
The month with the shortest days in Oso, Washington, is December, with an average of 8h and 24min of daylight.
What is the month with the least sunshine in Oso?
The month with the least sunshine in Oso, Washington, is December, with an average of 4.1h of sunshine.
Average temperature
Oso, WA
The warmest month (with the highest average high temperature) is August (72.3°F).
The month with the lowest average high temperature is December (41.7°F).
The month with the highest average low temperature is August (51.6°F).
The coldest month (with the lowest average low temperature) is February (33.8°F).
Average pressure
Oso, WA
- Average pressure in January:
30.09"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
30.04"Hg - Average pressure in May:
30.02"Hg - Average pressure in June:
30.01"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:
30.03"Hg - Average pressure in November:
30.03"Hg - Average pressure in December:
30.08"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed
Oso, WA
- Average wind speed in January:
5.6mph - Average wind speed in February:
5mph - Average wind speed in March:
5.5mph - Average wind speed in April:
4.7mph - Average wind speed in May:
3.9mph - Average wind speed in June:
3.7mph
- Average wind speed in July:
3.4mph - Average wind speed in August:
3.3mph - Average wind speed in September:
3.9mph - Average wind speed in October:
4.7mph - Average wind speed in November:
5.6mph - Average wind speed in December:
5.3mph
The windiest months (with the highest average wind speed) are January and November (5.6mph).
The calmest month (with the lowest average wind speed) is August (3.3mph).
Average humidity
Oso, WA
The months with the highest relative humidity are January, February, November and December (85%).
The month with the lowest relative humidity is July (73%).
Average rainfall
Oso, WA
- Average rainfall in January:
4.69" - Average rainfall in February:
3.66" - Average rainfall in March:
3.78" - Average rainfall in April:
2.95" - Average rainfall in May:
2.05" - Average rainfall in June:
1.38"
- Average rainfall in July:
0.51" - Average rainfall in August:
0.59" - Average rainfall in September:
2.05" - Average rainfall in October:
3.82" - Average rainfall in November:
4.92" - Average rainfall in December:
4.53"
The wettest month (with the highest rainfall) is November (4.92").
The driest month (with the least rainfall) is July (0.51").
Average rainfall days
Oso, WA
- Average rainfall days in January:
18.1 days - Average rainfall days in February:
16.9 days - Average rainfall days in March:
20.9 days - Average rainfall days in April:
19 days - Average rainfall days in May:
14.3 days - Average rainfall days in June:
14.1 days
- Average rainfall days in July:
8 days - Average rainfall days in August:
6.9 days - Average rainfall days in September:
13.5 days - Average rainfall days in October:
17.3 days - Average rainfall days in November:
20.2 days - Average rainfall days in December:
19.4 days
The month with the highest number of rainy days is March (20.9 days).
The month with the least rainy days is August (6.9 days).
Average snowfall
Oso, WA
The month with the highest snowfall is February (4.45").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Oso, WA
- Average snowfall days in January:
2.3 days - Average snowfall days in February:
4.3 days - Average snowfall days in March:
2.1 days - Average snowfall days in April:
0.2 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:
0.7 days - Average snowfall days in December:
2 days
The month with the highest number of snowfall days is February (4.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Oso, WA
- Average daylight in January:
8h and 5min - Average daylight in February:
10h and 1min - Average daylight in March:
11h and 5min - Average daylight in April:
13h and 4min - Average daylight in May:
15h and 1min - Average daylight in June:
16h and 0min
- Average daylight in July:
15h and 4min - Average daylight in August:
14h and 2min - Average daylight in September:
12h and 4min - Average daylight in October:
10h and 5min - Average daylight in November:
9h and 1min - Average daylight in December:
8h and 2min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in January:
4h and 1min - Average sunshine in February:
4h and 2min - Average sunshine in March:
6h and 0min - Average sunshine in April:
7h and 5min - Average sunshine in May:
9h and 1min - Average sunshine in June:
9h and 2min
- Average sunshine in July:
10h and 3min - Average sunshine in August:
10h and 4min - Average sunshine in September:
9h and 1min - Average sunshine in October:
5h and 2min - Average sunshine in November:
4h and 3min - Average sunshine in December:
4h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).
Average sunshine days
Oso, WA
- Average sunshine days in January:
10.4 days - Average sunshine days in February:
8.3 days - Average sunshine days in March:
8.1 days - Average sunshine days in April:
8.4 days - Average sunshine days in May:
14.1 days - Average sunshine days in June:
13.3 days
- Average sunshine days in July:
20.6 days - Average sunshine days in August:
22 days - Average sunshine days in September:
15.2 days - Average sunshine days in October:
12.4 days - Average sunshine days in November:
9 days - Average sunshine days in December:
9.5 days
The month with the most sunshine days is August (22 days).
The month with the least sunshine days is March (8.1 days).
Average UV index
Oso, WA
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover
Oso, WA
The month with the most cloud cover is December (Cloud cover 57).
The months with the least cloud cover are July and August (Cloud cover 26).
Average visibility
Oso, WA
The months with the highest visibility are March, April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, November and December (5mi).
Oso, Washington, USA
Weather forecast for your location
1. Click Locate me button
2. Allow the app to use your location
2. Allow the app to use your location