Climate and monthly weather forecast
Cottage Grove, OR

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The white Contennial Coverd Bridge with the scenic Cottage Grove in Oregon
The white Contennial Coverd Bridge with the scenic Cottage Grove in Oregon

Weather in January

January, the same as December, in Cottage Grove, Oregon, is a frosty winter month, with an average temperature fluctuating between 48.6°F (9.2°C) and 34.7°F (1.5°C). Cottage Grove experiences an average high-temperature of a still chilly 48.6°F (9.2°C) with the onset of January, subtly varied from December's 45.9°F (7.7°C). Weather in January »

Weather in February

The last month of the winter, February, is also a frosty month in Cottage Grove, Oregon, with an average temperature fluctuating between 48.7°F (9.3°C) and 34.3°F (1.3°C). Cottage Grove's average high-temperature in February sits at a still chilly 48.7°F (9.3°C), showing little difference from the previous month. Weather in February »

Weather in March

The first month of the spring, March, is a fresh month in Cottage Grove, Oregon, with an average temperature fluctuating between 35.4°F (1.9°C) and 52.3°F (11.3°C). In the transition from February to March, Cottage Grove reports an average high-temperature of a fresh 52.3°F (11.3°C), indicating a close resemblance to the prior month. Weather in March »

Weather in April

April is a mild spring month in Cottage Grove, Oregon, with temperature in the range of an average low of 36.9°F (2.7°C) and an average high of 56.8°F (13.8°C). In April, Cottage Grove experiences a minor shift in meteorological conditions with average high-temperatures marked at a mild 56.8°F (13.8°C), closely mirroring the climate in March. Weather in April »

Weather in May

The last month of the spring, May, is a refreshing month in Cottage Grove, Oregon, with an average temperature ranging between max 64.9°F (18.3°C) and min 40.3°F (4.6°C). Cottage Grove's weather shows a minor temperature rise with the arrival of May, moving from 56.8°F (13.8°C) in April to a still refreshing 64.9°F (18.3°C). Weather in May »

Weather in June

The first month of the summer, June, is an agreeable month in Cottage Grove, Oregon, with an average temperature fluctuating between 70.3°F (21.3°C) and 43.5°F (6.4°C). Cottage Grove's weather shows a minor temperature rise with the arrival of June, moving from an enjoyable 64.9°F (18.3°C) in May to an agreeable 70.3°F (21.3°C). Weather in June »

Weather in July

July in Cottage Grove, Oregon, is a warm summer month, with an average temperature fluctuating between 47.7°F (8.7°C) and 79.2°F (26.2°C). With the onset of July, Cottage Grove's average high-temperature sees a modest rise, moving from June's agreeable 70.3°F (21.3°C) to a moderately hot 79.2°F (26.2°C). Weather in July »

Weather in August

August, the last month of the summer in Cottage Grove, is also a moderately hot month, with an average temperature fluctuating between 48.7°F (9.3°C) and 80.1°F (26.7°C). August stands out as Cottage Grove's warmest month, with an average high-temperature of 80.1°F (26.7°C) and a low-temperature of 48.7°F (9.3°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Cottage Grove, Oregon, with an average temperature varying between 73.6°F (23.1°C) and 46°F (7.8°C). September brings a slight decrease in the average high-temperature, shifting from 80.1°F (26.7°C) in August to a still moderately hot 73.6°F (23.1°C). Weather in September »

Weather in October

October, the same as September, is another comfortable autumn month in Cottage Grove, Oregon, with temperature in the range of an average high of 62.6°F (17°C) and an average low of 42.1°F (5.6°C). The arrival of October corresponds with a temperature reduction, down from September's moderately hot 73.6°F (23.1°C) to an enjoyable 62.6°F (17°C). Weather in October »

Weather in November

The last month of the autumn, November, is another cool month in Cottage Grove, Oregon, with an average temperature fluctuating between 52.2°F (11.2°C) and 38.1°F (3.4°C). November shows a mild decline in the average high-temperature, falling from October's comfortable 62.6°F (17°C) to a cool 52.2°F (11.2°C). Weather in November »

Weather in December

December, the first month of the winter in Cottage Grove, is also a frosty month, with an average temperature ranging between min 33.4°F (0.8°C) and max 45.9°F (7.7°C). Cottage Grove's December weather, with an average high temperature of 45.9°F (7.7°C) and an average low temperature of 33.4°F (0.8°C), tends to be the coldest of the year. Weather in December »

Frequently asked questions

How many days does it rain?

In Cottage Grove, during the entire year, the rain falls for 157.8 days and collects up to 30.63" (778mm) of precipitation.

When does it snow?

Months with snowfall are January through April, November and December.

How many days does it snow?

Throughout the year, there are 7.1 snowfall days, and 6.22" (158mm) 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 most humid month?

February is the most humid month, with an average relative humidity of 87%.

When does it snow the most?

The month with the most snowfall in Cottage Grove is February, when snow falls for 2.8 days and typically aggregates up to 3.27" (83mm) of snow.

What is the month with the least sunshine?

The months with the least sunshine are February and December, with an average of 4.2h of sunshine.

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?

May through October are months without snowfall in Cottage Grove.

When are the longest days?

With an average of 15h and 24min of daylight, June has the longest days of the year in Cottage Grove.

What is the month with the highest UV index?

June through August, with an average maximum UV index of 5, are months with the highest UV index.

What is the least humid month?

The months with the lowest humidity are July and August, with an average relative humidity of 70%.

What is the driest month?

July is the month with the least rainfall. Rain falls for 3.7 days and accumulates 0.2" (5mm) of precipitation.

What part of the year is the hottest?

The average temperatures reach their apex in August, averaging 80.1°F (26.7°C) at the high end and 48.7°F (9.3°C) at the low end.

What month has the most sunshine?

The month with the most sunshine is August, with an average of 11.1h of sunshine.

What month is the coldest?

The month of December sees the average lowest temperatures, reaching 45.9°F (7.7°C) at the peak and 33.4°F (0.8°C) at the low.

What is the rainiest month?

The month with the most rainfall is December, when the rain falls for 18.2 days and typically aggregates up to 4.61" (117mm) of precipitation.

What is the month with the shortest days?

With an average of 9h and 0min of daylight, December has the shortest days of the year in Cottage Grove, Oregon.

Average temperature
Cottage Grove, OR

Average temperature - Cottage Grove, OR

The warmest month (with the highest average high temperature) is August (80.1°F).
The month with the lowest average high temperature is December (45.9°F).

The month with the highest average low temperature is August (48.7°F).
The coldest month (with the lowest average low temperature) is December (33.4°F).

Average pressure
Cottage Grove, OR

Average pressure - Cottage Grove, OR

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).

Average wind speed
Cottage Grove, OR

Average wind speed - Cottage Grove, OR

The windiest month (with the highest average wind speed) is January (4.5mph).
The calmest month (with the lowest average wind speed) is August (3.4mph).

Average humidity
Cottage Grove, OR

Average humidity - Cottage Grove, OR

The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are July and August (70%).

Average rainfall
Cottage Grove, OR

Average rainfall - Cottage Grove, OR

The wettest month (with the highest rainfall) is December (4.61").
The driest month (with the least rainfall) is July (0.2").

Average rainfall days
Cottage Grove, OR

Average rainfall days - Cottage Grove, OR

The month with the highest number of rainy days is March (20.1 days).
The month with the least rainy days is August (3.6 days).

Average snowfall
Cottage Grove, OR

Average snowfall - Cottage Grove, OR

The month with the highest snowfall is February (3.27").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days
Cottage Grove, OR

Average snowfall days - Cottage Grove, OR

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
Cottage Grove, OR

Average daylight / Average sunshine - Cottage Grove, OR

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

The month with the most sunshine is August (Average sunshine: 11h and 6min).
The months with the least sunshine are February and December (Average sunshine: 4h and 12min).

Average sunshine days
Cottage Grove, OR

Average sunshine days - Cottage Grove, OR

The month with the most sunshine days is July (25.8 days).
The months with the least sunshine days are February and March (9.3 days).

Average UV index
Cottage Grove, OR

Average UV index - Cottage Grove, OR

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average visibility
Cottage Grove, OR

Average visibility - Cottage Grove, OR

The months with the highest visibility are July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, April, May, June, November and December (4mi).

Cottage Grove, Oregon, USA

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