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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 a wintry winter month in Plymouth, Washington, with an average temperature varying between 29.7°F (-1.3°C) and 39.9°F (4.4°C). January brings a marginal elevation to a still wintry 39.9°F (4.4°C) from December's 38.7°F (3.7°C) in Plymouth's average high-temperatures. Weather in January »
Weather in February
The last month of the winter, February, is a frosty month in Plymouth, Washington, with an average temperature fluctuating between 45.1°F (7.3°C) and 32.9°F (0.5°C). The beginning of February records an average high-temperature of a chilly 45.1°F (7.3°C), almost echoing the conditions of the previous month. Weather in February »
Weather in March
March, the first month of the spring in Plymouth, is a cool month, with an average temperature varying between 54.1°F (12.3°C) and 37.9°F (3.3°C). Plymouth, Washington, experiences a temperature shift with the start of March, with average high-temperatures moving from a frosty 45.1°F (7.3°C) in February to a fresh 54.1°F (12.3°C). Weather in March »
Weather in April
April is a comfortable spring month in Plymouth, Washington, with temperature in the range of an average low of 43.3°F (6.3°C) and an average high of 62.4°F (16.9°C). With the onset of April, the average high-temperature subtly transitions from a cool 54.1°F (12.3°C) in March to a refreshing 62.4°F (16.9°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Plymouth, Washington, with an average temperature varying between 49.8°F (9.9°C) and 72.1°F (22.3°C). In Plymouth, stepping into May brings a temperature increase, moving up from April's comfortable 62.4°F (16.9°C) to an agreeable 72.1°F (22.3°C). Weather in May »
Weather in June
June, the first month of the summer in Plymouth, is a moderately hot month, with an average temperature varying between 79.2°F (26.2°C) and 55.9°F (13.3°C). Plymouth's June weather indicates a minor ascent in high-temperatures, adjusting from a pleasant 72.1°F (22.3°C) in May to a moderately hot 79.2°F (26.2°C). Weather in June »
Weather in July
July in Plymouth, Washington, is a tropical summer month, with an average temperature fluctuating between 89.1°F (31.7°C) and 62.8°F (17.1°C). Plymouth records the warmest temperatures in July, averaging a high of 89.1°F (31.7°C) and a low of 62.8°F (17.1°C). Weather in July »
Weather in August
The last month of the summer, August, is also a hot month in Plymouth, Washington, with temperature in the range of an average high of 87.8°F (31°C) and an average low of 64.2°F (17.9°C). The shift into August reveals an average high-temperature of a still hot 87.8°F (31°C), closely mirroring July's climate. Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Plymouth, Washington, with an average temperature varying between 77.2°F (25.1°C) and 57.4°F (14.1°C). The onset of September results in a decrease in the average high-temperature, receding from a hot 87.8°F (31°C) in August to a warm 77.2°F (25.1°C). Weather in September »
Weather in October
October, the same as September, is another enjoyable autumn month in Plymouth, Washington, with an average temperature varying between 46.8°F (8.2°C) and 61.9°F (16.6°C). With the beginning of October, Plymouth's average high-temperature experiences a significant decrease, moving from a moderately hot 77.2°F (25.1°C) in September to a refreshing 61.9°F (16.6°C). Weather in October »
Weather in November
November, the last month of the autumn in Plymouth, is another chilly month, with temperature in the range of an average low of 36.7°F (2.6°C) and an average high of 49.1°F (9.5°C). November's onset brings a reduction in the average high-temperature, from an enjoyable 61.9°F (16.6°C) in October to a chilly 49.1°F (9.5°C). Weather in November »
Weather in December
The first month of the winter, December, is also a wintry month in Plymouth, Washington, with an average temperature varying between 28.6°F (-1.9°C) and 38.7°F (3.7°C). December is Plymouth's coldest month, registering average high temperatures of 38.7°F (3.7°C) and lows of 28.6°F (-1.9°C). Weather in December »
Updated: Aug 18, 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 79%.
How much does it rain?
In Plymouth, during the entire year, the rain falls for 106.1 days and collects up to 7.76" (197mm) of precipitation.
When does it snow?
January through March, September, November and December are months with snowfall.
How many days does it snow?
In Plymouth, Washington, during the entire year, snow falls for 10.3 days and aggregates up to 6.02" (153mm) of snow.
What are the months with the least sunshine?
January and December, with an average of 5.4h of sunshine, are months with the least 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.
When does it snow the most?
February is the month with the most snowfall. Snow falls for 2.9 days and accumulates 2.83" (72mm) of snow.
What is the wettest month in Plymouth?
March is the month with the most rainfall. Rain falls for 13.1 days and accumulates 1.02" (26mm) of precipitation.
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?
In Plymouth, snow does not fall in April through August and October.
When are the longest days?
June has the longest days of the year, with an average of 15h and 42min of daylight.
What is the warmest month?
July is Plymouth's warmest month, registering average high temperatures of 89.1°F (31.7°C) and lows of 62.8°F (17.1°C).
What is the least humid month?
The months with the lowest humidity are July and August, with an average relative humidity of 36%.
What is the driest month?
July is the month with the least rainfall. Rain falls for 3.8 days and accumulates 0.16" (4mm) of precipitation.
What are the months with the most sunshine?
July and August, with an average of 12h of sunshine, are months with the most sunshine.
What is the month with the highest UV index in Plymouth?
The month with the highest UV index is July, with an average maximum UV index of 7.
What is the coldest month?
With its average high temperature of 38.7°F (3.7°C) and a low of 28.6°F (-1.9°C), December is regarded as the coldest month.
What is the month with the shortest days?
With an average of 8h and 42min of daylight, December has the shortest days of the year.
Average temperature
Plymouth, WA
The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is December (38.7°F).
The month with the highest average low temperature is August (64.2°F).
The coldest month (with the lowest average low temperature) is December (28.6°F).
Average pressure
Plymouth, WA
- Average pressure in January:
30.19"Hg - Average pressure in February:
30.1"Hg - Average pressure in March:
30.02"Hg - Average pressure in April:
30"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.91"Hg - Average pressure in September:
29.96"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.16"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed
Plymouth, WA
- Average wind speed in January:
6.6mph - Average wind speed in February:
7.4mph - Average wind speed in March:
8.5mph - Average wind speed in April:
9.3mph - Average wind speed in May:
8.2mph - Average wind speed in June:
8.7mph
- Average wind speed in July:
7.7mph - Average wind speed in August:
7.2mph - Average wind speed in September:
7.2mph - Average wind speed in October:
7mph - Average wind speed in November:
7.2mph - Average wind speed in December:
6.2mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is December (6.2mph).
Average humidity
Plymouth, WA
The month with the highest relative humidity is January (79%).
The months with the lowest relative humidity are July and August (36%).
Average rainfall
Plymouth, WA
- Average rainfall in January:
0.98" - Average rainfall in February:
0.94" - Average rainfall in March:
1.02" - Average rainfall in April:
0.55" - Average rainfall in May:
0.75" - Average rainfall in June:
0.47"
- Average rainfall in July:
0.16" - Average rainfall in August:
0.28" - Average rainfall in September:
0.31" - Average rainfall in October:
0.71" - Average rainfall in November:
0.59" - Average rainfall in December:
0.98"
The wettest month (with the highest rainfall) is March (1.02").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days
Plymouth, WA
- Average rainfall days in January:
11.3 days - Average rainfall days in February:
9.5 days - Average rainfall days in March:
13.1 days - Average rainfall days in April:
10.5 days - Average rainfall days in May:
9.2 days - Average rainfall days in June:
7 days
- Average rainfall days in July:
3.8 days - Average rainfall days in August:
4.1 days - Average rainfall days in September:
5.6 days - Average rainfall days in October:
9.8 days - Average rainfall days in November:
10.7 days - Average rainfall days in December:
11.5 days
The month with the highest number of rainy days is March (13.1 days).
The month with the least rainy days is July (3.8 days).
Average snowfall
Plymouth, WA
The month with the highest snowfall is February (2.83").
The months with the least snowfall are April, May, June, July, August and October (0").
Average snowfall days
Plymouth, WA
- Average snowfall days in January:
2.3 days - Average snowfall days in February:
2.9 days - Average snowfall days in March:
0.9 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:
0.9 days - Average snowfall days in December:
3.2 days
The month with the highest number of snowfall days is December (3.2 days).
The months with the least snowfall days are April, May, June, July, August and October (0 days).
Average daylight / Average sunshine
Plymouth, 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 3min - 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 4min - Average sunshine in March:
7h and 4min - Average sunshine in April:
10h and 1min - Average sunshine in May:
11h and 0min - Average sunshine in June:
11h and 2min
- 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 5min - Average sunshine in November:
6h and 1min - Average sunshine in December:
5h and 2min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 5h and 24min).
Average sunshine days
Plymouth, WA
- Average sunshine days in January:
15.7 days - Average sunshine days in February:
14 days - Average sunshine days in March:
14.7 days - Average sunshine days in April:
16.4 days - Average sunshine days in May:
19.4 days - Average sunshine days in June:
21.4 days
- Average sunshine days in July:
25.3 days - Average sunshine days in August:
24.5 days - Average sunshine days in September:
22.6 days - Average sunshine days in October:
19.6 days - Average sunshine days in November:
16.6 days - Average sunshine days in December:
15.8 days
The month with the most sunshine days is July (25.3 days).
The month with the least sunshine days is February (14 days).
Average UV index
Plymouth, WA
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Plymouth, WA
The months with the most cloud cover are January and December (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility
Plymouth, WA
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Plymouth, Washington, USA
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