Climate and monthly weather forecastCedar Mill, OR
Climate and monthly weather forecast
Weather in January
January, the same as December, in Cedar Mill, Oregon, is another chilly winter month, with an average temperature fluctuating between 35.1°F (1.7°C) and 46°F (7.8°C). Entering January, Cedar Mill's average high-temperature reads a still frosty 46°F (7.8°C), indicating a close resemblance to the previous month's climate. Weather in January »Weather in February
The last month of the winter, February, is also a frosty month in Cedar Mill, Oregon, with an average temperature varying between 35.4°F (1.9°C) and 47.7°F (8.7°C). The beginning of February reveals an average high-temperature of a still frosty 47.7°F (8.7°C), showing minimal deviation from the previous month. Weather in February »Weather in March
The first month of the spring, March, is a cool month in Cedar Mill, Oregon, with an average temperature varying between 38.1°F (3.4°C) and 52.7°F (11.5°C). The commencement of March introduces an average high-temperature of a fresh 52.7°F (11.5°C), closely mirroring the preceding month. Weather in March »Weather in April
April is a mild spring month in Cedar Mill, Oregon, with temperature in the range of an average high of 58.6°F (14.8°C) and an average low of 39.9°F (4.4°C). The start of April is characterized by a subtle increase in the average high-temperature, transitioning from a fresh 52.7°F (11.5°C) in March to a moderate 58.6°F (14.8°C). Weather in April »Weather in May
The last month of the spring, May, is a refreshing month in Cedar Mill, Oregon, with an average temperature fluctuating between 44.6°F (7°C) and 67.6°F (19.8°C). As Cedar Mill transitions into May, a rise in the average high-temperature is observed, moving from a mild 58.6°F (14.8°C) in April to a still refreshing 67.6°F (19.8°C). Weather in May »Weather in June
The first month of the summer, June, is an agreeable month in Cedar Mill, Oregon, with an average temperature varying between 72.5°F (22.5°C) and 48.7°F (9.3°C). The start of June marks an average high-temperature of an agreeable 72.5°F (22.5°C), hardly distinguishable from the conditions in May. Weather in June »Weather in July
July is a moderately hot summer month in Cedar Mill, Oregon, with temperature in the range of an average low of 53.4°F (11.9°C) and an average high of 81°F (27.2°C). As Cedar Mill transitions into July, a marginal rise in the average high-temperature is observed, moving from a pleasant 72.5°F (22.5°C) in June to a warm 81°F (27.2°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Cedar Mill, Oregon, with temperature in the range of an average high of 81.7°F (27.6°C) and an average low of 55.6°F (13.1°C). August is the warmest month, exhibiting average temperatures of 81.7°F (27.6°C) at the peak and 55.6°F (13.1°C) at the base. The average heat index in August is calculated to be 84.2°F (29°C). Weather in August »Weather in September
September, the first month of the autumn in Cedar Mill, is also a moderately hot month, with temperature in the range of an average low of 52°F (11.1°C) and an average high of 74.3°F (23.5°C). A mild shift in the average high-temperature occurs in September, reducing from a moderately hot 81.7°F (27.6°C) in August to a still warm 74.3°F (23.5°C). Weather in September »Weather in October
October, the same as September, is another enjoyable autumn month in Cedar Mill, Oregon, with an average temperature ranging between max 61.7°F (16.5°C) and min 45.5°F (7.5°C). The start of October involves a temperature drop, moving from a warm 74.3°F (23.5°C) in September to a refreshing 61.7°F (16.5°C). Weather in October »Weather in November
The last month of the autumn, November, is another cool month in Cedar Mill, Oregon, with an average temperature fluctuating between 39.9°F (4.4°C) and 50.9°F (10.5°C). The arrival of November corresponds with a reduction in the average high-temperature, down from October's refreshing 61.7°F (16.5°C) to a fresh 50.9°F (10.5°C). Weather in November »Weather in December
December, the first month of the winter in Cedar Mill, is still a chilly month, with an average temperature ranging between max 44.2°F (6.8°C) and min 34.7°F (1.5°C). December, known for its average high temperature of 44.2°F (6.8°C) and an average low temperature of 34.7°F (1.5°C), is the coldest month. Weather in December »Updated: Aug 12, 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
In Cedar Mill, during the entire year, the rain falls for 173.2 days and collects up to 30.55" (776mm) of precipitation.
January through March, November and December are months with snowfall.
Throughout the year, there are 6.1 snowfall days, and 4.37" (111mm) of snow is accumulated.
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
The months with the highest humidity are February and December, with an average relative humidity of 84%.
February is the month with the most snowfall. Snow falls for 2.2 days and accumulates 1.61" (41mm) of snow.
With an average of 3.9h of sunshine, February has the least sunshine of the year.
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.
In Cedar Mill, snow does not fall in April through October.
The month with the longest days is June, with an average of 15h and 36min of daylight.
The month with the least rainfall is July, when the rain falls for 4.7 days and typically collects 0.31" (8mm) of precipitation.
The month with the highest UV index is July, with an average maximum UV index of 6.
Cedar Mill notes the warmest temperatures in August, with a average high of 81.7°F (27.6°C) and a low of 55.6°F (13.1°C).
The least humid month is August, with an average relative humidity of 63%.
August has the most sunshine of the year, with an average of 10.9h of sunshine.
December, noted for its average high-temperature of 44.2°F (6.8°C) and an average low-temperature of 34.7°F (1.5°C), is considered the coldest month.
December is the month with the most rainfall. Rain falls for 18.7 days and accumulates 4.61" (117mm) of precipitation.
December has the shortest days of the year, with an average of 8h and 48min of daylight.
Average temperature
Cedar Mill, OR
The warmest month (with the highest average high temperature) is August (81.7°F).
The month with the lowest average high temperature is December (44.2°F).
The month with the highest average low temperature is August (55.6°F).
The coldest month (with the lowest average low temperature) is December (34.7°F).
Average pressure
Cedar Mill, OR
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.08"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
30.07"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:
30.05"Hg - Average pressure in November:
30.06"Hg - Average pressure in December:
30.1"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed
Cedar Mill, OR
- Average wind speed in January:
5.4mph - Average wind speed in February:
5.3mph - 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:
4.3mph - Average wind speed in August:
4mph - Average wind speed in September:
4.1mph - Average wind speed in October:
4.7mph - Average wind speed in November:
5.2mph - Average wind speed in December:
5.2mph
The windiest month (with the highest average wind speed) is January (5.4mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity
Cedar Mill, OR
The months with the highest relative humidity are February and December (84%).
The month with the lowest relative humidity is August (63%).
Average rainfall
Cedar Mill, OR
- Average rainfall in January:
4.49" - Average rainfall in February:
3.35" - Average rainfall in March:
3.43" - Average rainfall in April:
2.87" - Average rainfall in May:
1.69" - Average rainfall in June:
1.18"
- Average rainfall in July:
0.31" - Average rainfall in August:
0.35" - Average rainfall in September:
1.54" - Average rainfall in October:
3.31" - Average rainfall in November:
3.43" - Average rainfall in December:
4.61"
The wettest month (with the highest rainfall) is December (4.61").
The driest month (with the least rainfall) is July (0.31").
Average rainfall days
Cedar Mill, OR
- Average rainfall days in January:
18.5 days - Average rainfall days in February:
16.9 days - Average rainfall days in March:
20.6 days - Average rainfall days in April:
18.7 days - Average rainfall days in May:
13.8 days - Average rainfall days in June:
11.5 days
- Average rainfall days in July:
4.7 days - Average rainfall days in August:
4.6 days - Average rainfall days in September:
10.5 days - Average rainfall days in October:
15.9 days - Average rainfall days in November:
18.8 days - Average rainfall days in December:
18.7 days
The month with the highest number of rainy days is March (20.6 days).
The month with the least rainy days is August (4.6 days).
Average snowfall
Cedar Mill, OR
The month with the highest snowfall is February (1.61").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Cedar Mill, OR
- Average snowfall days in January:
1.3 days - Average snowfall days in February:
2.2 days - Average snowfall days in March:
1.5 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 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.3 days - Average snowfall days in December:
0.8 days
The month with the highest number of snowfall days is February (2.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Cedar Mill, OR
- Average daylight in January:
9h and 12min - Average daylight in February:
10h and 24min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 36min - Average daylight in May:
14h and 54min - Average daylight in June:
15h and 36min
- Average daylight in July:
15h and 18min - Average daylight in August:
14h and 6min - Average daylight in September:
12h and 30min - Average daylight in October:
10h and 54min - Average daylight in November:
9h and 30min - Average daylight in December:
8h and 48min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in January:
4h and 0min - Average sunshine in February:
3h and 54min - Average sunshine in March:
5h and 42min - Average sunshine in April:
7h and 24min - Average sunshine in May:
8h and 42min - Average sunshine in June:
9h and 18min
- Average sunshine in July:
10h and 48min - Average sunshine in August:
10h and 54min - Average sunshine in September:
9h and 12min - Average sunshine in October:
5h and 18min - Average sunshine in November:
4h and 36min - Average sunshine in December:
4h and 6min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).
Average sunshine days
Cedar Mill, OR
- Average sunshine days in January:
11 days - Average sunshine days in February:
8.9 days - Average sunshine days in March:
8.6 days - Average sunshine days in April:
9.3 days - Average sunshine days in May:
15.8 days - Average sunshine days in June:
15.9 days
- Average sunshine days in July:
24.9 days - Average sunshine days in August:
24.6 days - Average sunshine days in September:
17.9 days - Average sunshine days in October:
14 days - Average sunshine days in November:
10.4 days - Average sunshine days in December:
10.3 days
The month with the most sunshine days is July (24.9 days).
The month with the least sunshine days is March (8.6 days).
Average UV index
Cedar Mill, OR
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
Cedar Mill, OR
The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility
Cedar Mill, OR
The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, May, June, October, November and December (5mi).
