Climate and monthly weather forecastChimacum, WA
Climate and monthly weather forecast
Weather in January
January, like December, is another chilly winter month in Chimacum, Washington, with an average temperature fluctuating between 37.6°F (3.1°C) and 43.9°F (6.6°C). As January takes its course, Chimacum's average high-temperature registers at a still chilly 43.9°F (6.6°C), closely aligning with the preceding month. Weather in January »Weather in February
February, the last month of the winter in Chimacum, is another chilly month, with an average temperature ranging between min 37.4°F (3°C) and max 44.2°F (6.8°C). The shift into February finds Chimacum at an average high-temperature of a still chilly 44.2°F (6.8°C), closely comparable to January's conditions. Weather in February »Weather in March
March, the first month of the spring in Chimacum, is also a frosty month, with an average temperature fluctuating between 39.6°F (4.2°C) and 47.8°F (8.8°C). In March, Chimacum's weather conditions record an average high-temperature of a still frosty 47.8°F (8.8°C), demonstrating little divergence from the preceding month. Weather in March »Weather in April
April in Chimacum, Washington, is a cool spring month, with an average temperature varying between 52.3°F (11.3°C) and 43°F (6.1°C). The arrival of April sees an average high-temperature of a cool 52.3°F (11.3°C), hardly diverging from March's 47.8°F (8.8°C). Weather in April »Weather in May
The last month of the spring, May, is a moderate month in Chimacum, Washington, with an average temperature fluctuating between 58.8°F (14.9°C) and 47.7°F (8.7°C). May witnesses a minor rise in the average high-temperature, transitioning from a cool 52.3°F (11.3°C) in April to a mild 58.8°F (14.9°C). Weather in May »Weather in June
June, the first month of the summer in Chimacum, is a refreshing month, with an average temperature varying between 50.9°F (10.5°C) and 62.8°F (17.1°C). With the transition into June, Chimacum notes an average high-temperature of an enjoyable 62.8°F (17.1°C), closely resembling May. Weather in June »Weather in July
July, like June, in Chimacum, Washington, is another comfortable summer month, with temperature in the range of an average high of 67.5°F (19.7°C) and an average low of 54.5°F (12.5°C). Chimacum experiences a subtle adjustment in high-temperatures to a still comfortable 67.5°F (19.7°C) with the onset of July, maintaining near parity with June's 62.8°F (17.1°C). Weather in July »Weather in August
The last month of the summer, August, is another comfortable month in Chimacum, Washington, with an average temperature ranging between min 55.4°F (13°C) and max 67.8°F (19.9°C). Chimacum reaches its highest average temperatures in August, measuring 67.8°F (19.9°C) at the peak and 55.4°F (13°C) at the lowest. Weather in August »Weather in September
The first month of the autumn, September, is also an enjoyable month in Chimacum, Washington, with an average temperature ranging between max 63.1°F (17.3°C) and min 52.7°F (11.5°C). The unfolding of September shows an average high-temperature of a still comfortable 63.1°F (17.3°C), indicating a slight variance from August's 67.8°F (19.9°C). Weather in September »Weather in October
October, the same as September, is another fresh autumn month in Chimacum, Washington, with an average temperature fluctuating between 46.9°F (8.3°C) and 55.2°F (12.9°C). The average high-temperature slightly decreases in October, shifting from a comfortable 63.1°F (17.3°C) in September to a cool 55.2°F (12.9°C). Weather in October »Weather in November
The last month of the autumn, November, is another chilly month in Chimacum, Washington, with an average temperature varying between 48°F (8.9°C) and 41.9°F (5.5°C). As October shifts into November, a minor alteration in temperatures is observed, with average highs reducing from a fresh 55.2°F (12.9°C) to a frosty 48°F (8.9°C). Weather in November »Weather in December
December, the first month of the winter in Chimacum, is also a frosty month, with an average temperature ranging between min 37.6°F (3.1°C) and max 43°F (6.1°C). In Chimacum, the lowest average temperatures are observed in December, with a high of 43°F (6.1°C) and a low of 37.6°F (3.1°C). 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
With an average relative humidity of 83%, January is the most humid month in Chimacum.
Throughout the year, there are 180.3 rainfall days, and 21.85" (555mm) of precipitation is accumulated.
January through April, November and December are months with snowfall.
Throughout the year, there are 7.8 snowfall days, and 4.84" (123mm) of snow is accumulated.
With an average of 4.8h of sunshine, January has the least sunshine of the year.
The months with the lowest UV index in Chimacum are January, February, November and December, with an average maximum UV index of 2.
The month with the most snowfall in Chimacum, Washington, is February, when snow falls for 2.8 days and typically aggregates up to 2.87" (73mm) of snow.
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.
May through October are months without snowfall in Chimacum.
June has the longest days of the year, with an average of 16h and 0min of daylight.
The least humid month is July, with an average relative humidity of 75%.
The month with the least rainfall in Chimacum is July, when the rain falls for 8.3 days and typically collects 0.43" (11mm) of precipitation.
July is the month with the highest UV index, with an average maximum UV index of 5.
August is the month when Chimacum sees the average highest temperatures, with a high of 67.8°F (19.9°C) and a low of 55.4°F (13°C).
With an average of 11h of sunshine, August has the most sunshine of the year.
The month with the most rainfall in Chimacum, Washington, is November, when the rain falls for 19.1 days and typically aggregates up to 2.91" (74mm) of precipitation.
The coldest period in Chimacum, Washington, tends to be December, when average temperatures fluctuate between a high of 43°F (6.1°C) and a low of 37.6°F (3.1°C).
December has the shortest days of the year, with an average of 8h and 30min of daylight.
Average temperature
Chimacum, WA
The warmest month (with the highest average high temperature) is August (67.8°F).
The month with the lowest average high temperature is December (43°F).
The month with the highest average low temperature is August (55.4°F).
The coldest month (with the lowest average low temperature) is February (37.4°F).
Average pressure
Chimacum, WA
- Average pressure in January:
30.08"Hg - Average pressure in February:
30.05"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:
30.02"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:
30.06"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The months with the lowest atmospheric pressure are March and September (30.01"Hg).
Average wind speed
Chimacum, WA
- Average wind speed in January:
7mph - Average wind speed in February:
6.4mph - Average wind speed in March:
6.6mph - Average wind speed in April:
5.9mph - Average wind speed in May:
4.5mph - Average wind speed in June:
4.4mph
- Average wind speed in July:
4.2mph - Average wind speed in August:
4mph - Average wind speed in September:
4.3mph - Average wind speed in October:
5.8mph - Average wind speed in November:
7.4mph - Average wind speed in December:
7.1mph
The windiest month (with the highest average wind speed) is November (7.4mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity
Chimacum, WA
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is July (75%).
Average rainfall
Chimacum, WA
- Average rainfall in January:
2.52" - Average rainfall in February:
2.28" - Average rainfall in March:
2.2" - Average rainfall in April:
1.73" - Average rainfall in May:
1.65" - Average rainfall in June:
1.18"
- Average rainfall in July:
0.43" - Average rainfall in August:
0.63" - Average rainfall in September:
1.5" - Average rainfall in October:
2.28" - Average rainfall in November:
2.91" - Average rainfall in December:
2.52"
The wettest month (with the highest rainfall) is November (2.91").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days
Chimacum, WA
- Average rainfall days in January:
17.8 days - Average rainfall days in February:
16.5 days - Average rainfall days in March:
20.7 days - Average rainfall days in April:
18.4 days - Average rainfall days in May:
13 days - Average rainfall days in June:
13.1 days
- Average rainfall days in July:
8.3 days - Average rainfall days in August:
6.6 days - Average rainfall days in September:
12.5 days - Average rainfall days in October:
16.1 days - Average rainfall days in November:
19.1 days - Average rainfall days in December:
18.2 days
The month with the highest number of rainy days is March (20.7 days).
The month with the least rainy days is August (6.6 days).
Average snowfall
Chimacum, WA
The month with the highest snowfall is February (2.87").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Chimacum, WA
- Average snowfall days in January:
1.8 days - Average snowfall days in February:
2.8 days - Average snowfall days in March:
1.3 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:
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 daylight / Average sunshine
Chimacum, WA
- Average daylight in January:
8h and 54min - Average daylight in February:
10h and 18min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 42min - Average daylight in May:
15h and 12min - Average daylight in June:
16h and 0min
- Average daylight in July:
15h and 36min - Average daylight in August:
14h and 12min - Average daylight in September:
12h and 36min - Average daylight in October:
10h and 48min - Average daylight in November:
9h and 18min - Average daylight in December:
8h and 30min
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 30min).
- Average sunshine in January:
4h and 48min - Average sunshine in February:
4h and 54min - Average sunshine in March:
6h and 48min - Average sunshine in April:
8h and 36min - Average sunshine in May:
9h and 48min - Average sunshine in June:
10h and 0min
- Average sunshine in July:
10h and 54min - Average sunshine in August:
11h and 0min - Average sunshine in September:
9h and 30min - Average sunshine in October:
5h and 54min - Average sunshine in November:
5h and 6min - Average sunshine in December:
4h and 54min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days
Chimacum, WA
- Average sunshine days in January:
10.6 days - Average sunshine days in February:
8.8 days - Average sunshine days in March:
8.2 days - Average sunshine days in April:
9.1 days - Average sunshine days in May:
15.7 days - Average sunshine days in June:
14.9 days
- Average sunshine days in July:
21.4 days - Average sunshine days in August:
22.3 days - Average sunshine days in September:
15.6 days - Average sunshine days in October:
13.4 days - Average sunshine days in November:
9.3 days - Average sunshine days in December:
10.7 days
The month with the most sunshine days is August (22.3 days).
The month with the least sunshine days is March (8.2 days).
Average UV index
Chimacum, WA
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Chimacum, WA
The months with the most cloud cover are January, February and December (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility
Chimacum, 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).
