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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 sea temperature
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, in Olalla, Washington, is a frosty winter month, with an average temperature fluctuating between 36.1°F (2.3°C) and 45°F (7.2°C). The transition into January shows a subtle variation to a still chilly 45°F (7.2°C) from December's 43.2°F (6.2°C) in the average high-temperature. Weather in January »
Weather in February
The last month of the winter, February, is also a frosty month in Olalla, Washington, with an average temperature fluctuating between 46°F (7.8°C) and 35.2°F (1.8°C). In February, Olalla's weather conditions record an average high-temperature of a still frosty 46°F (7.8°C), demonstrating little divergence from the preceding month. Weather in February »
Weather in March
The first month of the spring, March, is a fresh month in Olalla, Washington, with an average temperature varying between 50.9°F (10.5°C) and 37.2°F (2.9°C). During March, the average high-temperature is a fresh 50.9°F (10.5°C), maintaining a close resemblance to that of the preceding month. Weather in March »
Weather in April
April in Olalla, Washington, is a mild spring month, with an average temperature fluctuating between 39.9°F (4.4°C) and 56.7°F (13.7°C). The beginning of April marks a minor shift in the average high-temperature, moving from March's cool 50.9°F (10.5°C) to a refreshing 56.7°F (13.7°C). Weather in April »
Weather in May
May, the last month of the spring in Olalla, is a comfortable month, with an average temperature ranging between min 45°F (7.2°C) and max 65.1°F (18.4°C). The commencement of May sees a minor shift in the average high-temperature, moving from 56.7°F (13.7°C) in April to a still refreshing 65.1°F (18.4°C). Weather in May »
Weather in June
The first month of the summer, June, is a pleasant month in Olalla, Washington, with temperature in the range of an average low of 48.4°F (9.1°C) and an average high of 69.4°F (20.8°C). June experiences an average high-temperature of a pleasant 69.4°F (20.8°C), barely different from May's 65.1°F (18.4°C). Weather in June »
Weather in July
July is a warm summer month in Olalla, Washington, with an average temperature varying between 52.7°F (11.5°C) and 77°F (25°C). The coming of July brings a minor shift in Olalla's weather, with average high-temperatures adjusting from June's agreeable 69.4°F (20.8°C) to a moderately hot 77°F (25°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Olalla, Washington, with an average temperature fluctuating between 77.2°F (25.1°C) and 53.6°F (12°C). August, characterized by an average high temperature of 77.2°F (25.1°C) and a low temperature of 53.6°F (12°C), is generally the warmest month. Weather in August »
Weather in September
September, the first month of the autumn in Olalla, is still a pleasant month, with an average temperature ranging between min 50.9°F (10.5°C) and max 70°F (21.1°C). September's arrival aligns with a minor decrease in average high-temperatures, from August's moderately hot 77.2°F (25.1°C) to an agreeable 70°F (21.1°C). Weather in September »
Weather in October
October, like September, is another refreshing autumn month in Olalla, Washington, with temperature in the range of an average high of 58.6°F (14.8°C) and an average low of 45°F (7.2°C). The onset of October brings a small change in high-temperatures, falling from a pleasant 70°F (21.1°C) in September to a mild 58.6°F (14.8°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a frosty month in Olalla, Washington, with an average temperature varying between 48.9°F (9.4°C) and 39.6°F (4.2°C). The arrival of November indicates a decrease in the average high-temperature, moving from a refreshing 58.6°F (14.8°C) in October to a frosty 48.9°F (9.4°C). Weather in November »
Weather in December
The first month of the winter, December, is also a frosty month in Olalla, Washington, with temperature in the range of an average low of 34.9°F (1.6°C) and an average high of 43.2°F (6.2°C). December, recording an average high temperature of 43.2°F (6.2°C) and a low temperature of 34.9°F (1.6°C), is Olalla's 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 is the wettest month in Olalla?
The wettest months in Olalla are January and December, with an average 2.05" (52mm) of rainfall.
How many days does it rain in Olalla?
Throughout the year, in Olalla, there are 138.9 rainfall days, and 12.24" (311mm) of precipitation is accumulated.
When does it snow in Olalla?
January through March, November and December are months with snowfall.
How many days does it snow in Olalla?
Throughout the year, there are 7 snowfall days, and 2.36" (60mm) of snow is accumulated.
What is the month with the lowest UV index in Olalla?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Olalla.
What is the snowiest month in Olalla?
February is the month with the most snowfall. Snow falls for 2.8 days and accumulates 1.22" (31mm) of snow.
What is the month with the coldest ocean in Olalla?
February is the month with the coldest seawater, with an average ocean temperature of 45.9°F (7.7°C).
When is Daylight Saving Time (DST) in Olalla?
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 Olalla?
In Olalla, snow does not fall in April through October.
When are the longest days in Olalla?
The month with the longest days in Olalla is June, with an average of 15h and 54min of daylight.
What is the least humid month in Olalla?
The least humid month is July, with an average relative humidity of 69%.
What is the driest month in Olalla?
July is the month with the least rainfall in Olalla. Rain falls for 6.2 days and accumulates 0.28" (7mm) of precipitation.
When is the highest UV index in Olalla?
The month with the highest UV index is July, with an average maximum UV index of 6.
What is the warmest month in Olalla?
The temperatures in Olalla, Washington, reach their highest averages in August, with highs of 77.2°F (25.1°C) and lows of 53.6°F (12°C).
What months are the ocean warmest in Olalla?
August and September, with an average ocean temperature of 53.2°F (11.8°C), are months with the warmest seawater in Olalla.
What month has the most sunshine in Olalla?
The month with the most sunshine is August, with an average of 10.7h of sunshine.
What time of the year is the coldest in Olalla?
December tends to be the coldest month in Olalla, Washington, with temperatures averaging a daily high of 43.2°F (6.2°C) and a low of 34.9°F (1.6°C).
What is the most humid month in Olalla?
December is the most humid month, with an average relative humidity of 87%.
What is the month with the shortest days in Olalla?
With an average of 8h and 30min of daylight, December has the shortest days of the year.
What is the month with the least sunshine in Olalla?
December has the least sunshine of the year in Olalla, Washington, with an average of 4.1h of sunshine.
Average temperature
Olalla, WA
The warmest month (with the highest average high temperature) is August (77.2°F).
The month with the lowest average high temperature is December (43.2°F).
The month with the highest average low temperature is August (53.6°F).
The coldest month (with the lowest average low temperature) is December (34.9°F).
Average pressure
Olalla, 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:
30.05"Hg - Average pressure in May:
30.03"Hg - Average pressure in June:
30.03"Hg
- Average pressure in July:
30.05"Hg - Average pressure in August:
30.01"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.03"Hg - Average pressure in December:
30.07"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).
Average wind speed
Olalla, WA
- Average wind speed in January:
5.1mph - Average wind speed in February:
5mph - Average wind speed in March:
5.5mph - Average wind speed in April:
5mph - Average wind speed in May:
4.2mph - Average wind speed in June:
4mph
- Average wind speed in July:
3.5mph - Average wind speed in August:
3.5mph - Average wind speed in September:
4.1mph - Average wind speed in October:
4.5mph - Average wind speed in November:
5.1mph - Average wind speed in December:
4.7mph
The windiest month (with the highest average wind speed) is March (5.5mph).
The calmest months (with the lowest average wind speed) are July and August (3.5mph).
Average humidity
Olalla, WA
The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is July (69%).
Average rainfall
Olalla, WA
- Average rainfall in January:
2.05" - Average rainfall in February:
1.14" - Average rainfall in March:
1.06" - Average rainfall in April:
0.79" - Average rainfall in May:
0.83" - Average rainfall in June:
0.51"
The wettest months (with the highest rainfall) are January and December (2.05").
The driest month (with the least rainfall) is July (0.28").
Average rainfall days
Olalla, WA
- Average rainfall days in January:
13.4 days - Average rainfall days in February:
12.8 days - Average rainfall days in March:
15.3 days - Average rainfall days in April:
13.3 days - Average rainfall days in May:
11.8 days - Average rainfall days in June:
9.7 days
- Average rainfall days in July:
6.2 days - Average rainfall days in August:
5.4 days - Average rainfall days in September:
9.9 days - Average rainfall days in October:
11.8 days - Average rainfall days in November:
15 days - Average rainfall days in December:
14.3 days
The month with the highest number of rainy days is March (15.3 days).
The month with the least rainy days is August (5.4 days).
Average snowfall
Olalla, WA
The month with the highest snowfall is February (1.22").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Olalla, WA
- Average snowfall days in January:
1.7 days - Average snowfall days in February:
2.8 days - Average snowfall days in March:
0.8 days - Average snowfall days in April:
0.1 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:
0.6 days - Average snowfall days in December:
1 days
The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature
Olalla, WA
The best month for swimming (with the highest average sea temperature) is August (53.3°F).
The coldest month (with the lowest average sea temperature) is February (45.8°F).
Average daylight / Average sunshine
Olalla, WA
- Average daylight in January:
9h and 0min - 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 1min - Average daylight in June:
15h and 5min
- Average daylight in July:
15h and 3min - 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 3min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in January:
4h and 1min - Average sunshine in February:
4h and 3min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 1min - Average sunshine in May:
9h and 1min - Average sunshine in June:
9h and 3min
- Average sunshine in July:
10h and 3min - Average sunshine in August:
10h and 4min - Average sunshine in September:
9h and 2min - Average sunshine in October:
5h and 4min - 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
Olalla, WA
- Average sunshine days in January:
14.9 days - Average sunshine days in February:
11.8 days - Average sunshine days in March:
12.7 days - Average sunshine days in April:
13.8 days - Average sunshine days in May:
16.4 days - Average sunshine days in June:
17.3 days
- Average sunshine days in July:
22.4 days - Average sunshine days in August:
22.8 days - Average sunshine days in September:
18.5 days - Average sunshine days in October:
16.6 days - Average sunshine days in November:
12.7 days - Average sunshine days in December:
13.8 days
The month with the most sunshine days is August (22.8 days).
The month with the least sunshine days is February (11.8 days).
Average UV index
Olalla, 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
Olalla, WA
The month with the most cloud cover is December (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility
Olalla, WA
The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, October, November and December (5mi).
Olalla, Washington, USA
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