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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, in Steilacoom, Washington, is a frosty winter month, with temperature in the range of an average low of 35.2°F (1.8°C) and an average high of 45.5°F (7.5°C). The arrival of January brings an average high-temperature of a still chilly 45.5°F (7.5°C), subtly diverging from December's 43.7°F (6.5°C). Weather in January »
Weather in February
February, the last month of the winter in Steilacoom, is also a frosty month, with an average temperature ranging between max 46.6°F (8.1°C) and min 34.3°F (1.3°C). With the onset of February, Steilacoom's average high-temperature clocks in at a still frosty 46.6°F (8.1°C), showing a minor fluctuation from the previous month. Weather in February »
Weather in March
March, the first month of the spring in Steilacoom, is a cool month, with an average temperature ranging between min 37°F (2.8°C) and max 51.8°F (11°C). Steilacoom marks the onset of March with an average high-temperature of a cool 51.8°F (11°C), a subtle shift from February's 46.6°F (8.1°C). Weather in March »
Weather in April
April in Steilacoom, Washington, is a refreshing spring month, with an average temperature varying between 39.4°F (4.1°C) and 57.2°F (14°C). With the transition into April, Steilacoom experiences a subtle uplift in average high-temperatures, adjusting from a cool 51.8°F (11°C) in March to a refreshing 57.2°F (14°C). Weather in April »
Weather in May
The last month of the spring, May, is a comfortable month in Steilacoom, Washington, with an average temperature varying between 65.8°F (18.8°C) and 43.5°F (6.4°C). The start of May brings a subtle rise in the average high-temperature, moving from a mild 57.2°F (14°C) in April to an enjoyable 65.8°F (18.8°C). Weather in May »
Weather in June
June, the first month of the summer in Steilacoom, is an agreeable month, with temperature in the range of an average high of 70.3°F (21.3°C) and an average low of 47.1°F (8.4°C). Steilacoom, Washington, experiences a transition to an agreeable 70.3°F (21.3°C) in average high-temperatures with the arrival of June, not greatly differing from May's 65.8°F (18.8°C). Weather in June »
Weather in July
July is a warm summer month in Steilacoom, Washington, with an average temperature ranging between max 77.9°F (25.5°C) and min 51.4°F (10.8°C). The shift into July is accompanied by a modest temperature increase, with the average high-temperature edging up from an agreeable 70.3°F (21.3°C) in June to a moderately hot 77.9°F (25.5°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Steilacoom, Washington, with an average temperature ranging between max 78.1°F (25.6°C) and min 52.7°F (11.5°C). August, marked by an average high-temperature of 78.1°F (25.6°C) and a low-temperature of 52.7°F (11.5°C), is the warmest month. Weather in August »
Weather in September
September, the first month of the autumn in Steilacoom, is still a pleasant month, with temperature in the range of an average low of 49.5°F (9.7°C) and an average high of 70.9°F (21.6°C). As August makes way for September, Steilacoom's average high-temperature eases from a moderately hot 78.1°F (25.6°C) to an agreeable 70.9°F (21.6°C). Weather in September »
Weather in October
October, the same as September, in Steilacoom, Washington, is another mild autumn month, with an average temperature ranging between max 59.2°F (15.1°C) and min 43.9°F (6.6°C). October brings a minor decrease, with the average high-temperature reducing from a pleasant 70.9°F (21.6°C) in September to a moderate 59.2°F (15.1°C). Weather in October »
Weather in November
November, the last month of the autumn in Steilacoom, is also a frosty month, with temperature in the range of an average high of 49.6°F (9.8°C) and an average low of 38.7°F (3.7°C). Welcoming November, Steilacoom observes a shift in the average high-temperature, falling from October's mild 59.2°F (15.1°C) to a chilly 49.6°F (9.8°C). Weather in November »
Weather in December
The first month of the winter, December, is still a chilly month in Steilacoom, Washington, with an average temperature ranging between min 34.3°F (1.3°C) and max 43.7°F (6.5°C). Steilacoom's December weather, with an average high temperature of 43.7°F (6.5°C) and an average low temperature of 34.3°F (1.3°C), tends to be the coldest of the year. Weather in December »
Updated: Jul 4, 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?
The months with the highest humidity are January and December, with an average relative humidity of 87%.
How much does it rain?
In Steilacoom, during the entire year, the rain falls for 172.9 days and collects up to 30.08" (764mm) of precipitation.
When does it snow?
Months with snowfall are January through March, November and December.
How much does it snow?
Throughout the year, in Steilacoom, there are 8.9 snowfall days, and 5.04" (128mm) of snow is accumulated.
When is the lowest UV index?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
What is the snowiest month?
The month with the most snowfall is February, when snow falls for 3.2 days and typically aggregates up to 2.28" (58mm) 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?
April through October are months without snowfall.
When are the longest days?
With an average of 15h and 54min of daylight, June has the longest days of the year.
What is the least humid month?
July is the least humid month in Steilacoom, with an average relative humidity of 68%.
What is the driest month?
The month with the least rainfall is July, when the rain falls for 6.3 days and typically collects 0.39" (10mm) of precipitation.
What is the month with 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, with an average high of 78.1°F (25.6°C) and a low of 52.7°F (11.5°C), signifies the warmest month of the year.
What month has the most sunshine?
With an average of 10.6h of sunshine, August has the most sunshine of the year.
What part of the year is the coldest?
Steilacoom's December weather, with an average high temperature of 43.7°F (6.5°C) and an average low temperature of 34.3°F (1.3°C), tends to be the coldest of the year.
What is the rainiest month?
The month with the most rainfall is December, when the rain falls for 18.4 days and typically aggregates up to 4.69" (119mm) of precipitation.
What is the month with the shortest days?
With an average of 8h and 36min of daylight, December has the shortest days of the year.
What is the month with the least sunshine?
With an average of 4h of sunshine, December has the least sunshine of the year.
Average temperature
Steilacoom, WA
The warmest month (with the highest average high temperature) is August (78.1°F).
The month with the lowest average high temperature is December (43.7°F).
The month with the highest average low temperature is August (52.7°F).
The coldest months (with the lowest average low temperature) are February and December (34.3°F).
Average pressure
Steilacoom, 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:
30.04"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:
30.04"Hg - Average pressure in December:
30.08"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
Steilacoom, WA
- Average wind speed in January:
5mph - Average wind speed in February:
5mph - Average wind speed in March:
5.2mph - Average wind speed in April:
4.8mph - Average wind speed in May:
4.3mph - Average wind speed in June:
4.2mph
- Average wind speed in July:
3.9mph - Average wind speed in August:
3.7mph - Average wind speed in September:
4mph - Average wind speed in October:
4.4mph - Average wind speed in November:
5mph - Average wind speed in December:
4.6mph
The windiest month (with the highest average wind speed) is March (5.2mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity
Steilacoom, WA
The months with the highest relative humidity are January and December (87%).
The month with the lowest relative humidity is July (68%).
Average rainfall
Steilacoom, WA
- Average rainfall in January:
4.53" - Average rainfall in February:
2.83" - Average rainfall in March:
3.07" - Average rainfall in April:
2.44" - Average rainfall in May:
1.57" - Average rainfall in June:
1.14"
- Average rainfall in July:
0.39" - Average rainfall in August:
0.55" - Average rainfall in September:
1.54" - Average rainfall in October:
3.46" - Average rainfall in November:
3.86" - Average rainfall in December:
4.69"
The wettest month (with the highest rainfall) is December (4.69").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days
Steilacoom, WA
- Average rainfall days in January:
18.3 days - Average rainfall days in February:
16.3 days - Average rainfall days in March:
20.1 days - Average rainfall days in April:
17.9 days - Average rainfall days in May:
13.3 days - Average rainfall days in June:
11.4 days
- Average rainfall days in July:
6.3 days - Average rainfall days in August:
5 days - Average rainfall days in September:
11.9 days - Average rainfall days in October:
15.3 days - Average rainfall days in November:
18.7 days - Average rainfall days in December:
18.4 days
The month with the highest number of rainy days is March (20.1 days).
The month with the least rainy days is August (5 days).
Average snowfall
Steilacoom, WA
The month with the highest snowfall is February (2.28").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Steilacoom, WA
- Average snowfall days in January:
1.9 days - Average snowfall days in February:
3.2 days - Average snowfall days in March:
1.7 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:
0.6 days - Average snowfall days in December:
1.3 days
The month with the highest number of snowfall days is February (3.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Steilacoom, 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 4min
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 36min).
- 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:
8h and 5min - Average sunshine in June:
9h and 2min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 4min - Average sunshine in September:
9h and 0min - Average sunshine in October:
5h and 2min - Average sunshine in November:
4h and 4min - Average sunshine in December:
4h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 0min).
Average sunshine days
Steilacoom, WA
- Average sunshine days in January:
10.8 days - Average sunshine days in February:
9 days - Average sunshine days in March:
9.4 days - Average sunshine days in April:
9.9 days - Average sunshine days in May:
15.5 days - Average sunshine days in June:
16 days
- Average sunshine days in July:
22.5 days - Average sunshine days in August:
23.4 days - Average sunshine days in September:
16.5 days - Average sunshine days in October:
14.3 days - Average sunshine days in November:
9.4 days - Average sunshine days in December:
9.5 days
The month with the most sunshine days is August (23.4 days).
The month with the least sunshine days is February (9 days).
Average UV index
Steilacoom, 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
Steilacoom, WA
The month with the most cloud cover is December (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility
Steilacoom, WA
The months with the highest visibility are June, July and August (6mi).
The months with the lowest visibility are January, February, March, April, May, September, October, November and December (5mi).
Steilacoom, Washington, USA
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