Climate and monthly weather forecast
Grants Pass, OR

Colorful balloons rise from the scenic grounds in a field near Grant Pass, Oregon
Colorful balloons rise from the scenic grounds in a field near Grant Pass, Oregon

Weather in January

January, like December, is another chilly winter month in Grants Pass, Oregon, with an average temperature fluctuating between 47.8°F (8.8°C) and 32.5°F (0.3°C). In January, the average high-temperature is relatively the same as in December - a still chilly 47.8°F (8.8°C). Weather in January »

Weather in February

February, the last month of the winter in Grants Pass, is also a frosty month, with temperature in the range of an average low of 32.5°F (0.3°C) and an average high of 49.3°F (9.6°C). In February, the average high-temperature is almost the same as in January - a still chilly 49.3°F (9.6°C). Weather in February »

Weather in March

March, the first month of the spring in Grants Pass, is a cool month, with an average temperature fluctuating between 52.5°F (11.4°C) and 33.3°F (0.7°C). In Grants Pass, the average high-temperature in March is practically the same as in February - a cool 52.5°F (11.4°C). Weather in March »

Weather in April

April is a mild spring month in Grants Pass, Oregon, with temperature in the range of an average low of 35.4°F (1.9°C) and an average high of 57.9°F (14.4°C). In April, the average high-temperature slightly increases from a cool 52.5°F (11.4°C) in March to a mild 57.9°F (14.4°C). Weather in April »

Weather in May

The last month of the spring, May, is an enjoyable month in Grants Pass, Oregon, with an average temperature fluctuating between 66.7°F (19.3°C) and 39.7°F (4.3°C). In Grants Pass, the average high-temperature in May slightly increases from a mild 57.9°F (14.4°C) in April to a comfortable 66.7°F (19.3°C). Weather in May »

Weather in June

June, the first month of the summer in Grants Pass, is a moderately hot month, with temperature in the range of an average low of 44.1°F (6.7°C) and an average high of 73.8°F (23.2°C). In Grants Pass, the average high-temperature in June slightly increases from a comfortable 66.7°F (19.3°C) in May to a warm 73.8°F (23.2°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Grants Pass, Oregon, with an average temperature fluctuating between 83.8°F (28.8°C) and 48.7°F (9.3°C). In July, the average high-temperature increases from a warm 73.8°F (23.2°C) in June to a still moderately hot 83.8°F (28.8°C). Weather in July »

Weather in August

August, the last month of the summer in Grants Pass, is another warm month, with an average temperature varying between 84.7°F (29.3°C) and 49.1°F (9.5°C). August is the warmest month, with an average high-temperature of 84.7°F (29.3°C) and an average low-temperature of 49.1°F (9.5°C). The average heat index in August is evaluated at a hot 89.6°F (32°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Grants Pass, Oregon, with temperature in the range of an average high of 77.4°F (25.2°C) and an average low of 45°F (7.2°C). In September, the average high-temperature slightly decreases from 84.7°F (29.3°C) in August to a still warm 77.4°F (25.2°C). Weather in September »

Weather in October

October, the same as September, is another comfortable autumn month in Grants Pass, Oregon, with an average temperature fluctuating between 40.6°F (4.8°C) and 65.5°F (18.6°C). In October, the average high-temperature drops from a warm 77.4°F (25.2°C) in September to an enjoyable 65.5°F (18.6°C). Weather in October »

Weather in November

The last month of the autumn, November, is another cool month in Grants Pass, Oregon, with an average temperature varying between 36°F (2.2°C) and 54°F (12.2°C). In November, the average high-temperature drops from an enjoyable 65.5°F (18.6°C) in October to a cool 54°F (12.2°C). Weather in November »

Weather in December

The first month of the winter, December, is still a chilly month in Grants Pass, Oregon, with temperature in the range of an average high of 46°F (7.8°C) and an average low of 31.5°F (-0.3°C). December is the coldest month, with an average high-temperature of 46°F (7.8°C) and an average low-temperature of 31.5°F (-0.3°C). Weather in December »
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FAQ

What is the most humid month in Grants Pass?

January is the most humid month in Grants Pass, Oregon, with an average relative humidity of 85%.

How much does it rain in Grants Pass?

In Grants Pass, during the entire year, the rain falls for 135.3 days and collects up to 23.54" (598mm) of precipitation.

When does it snow in Grants Pass?

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

How many days does it snow in Grants Pass?

Throughout the year, in Grants Pass, Oregon, there are 7.9 snowfall days, and 5.12" (130mm) of snow is accumulated.

What is the month with the lowest UV index in Grants Pass?

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 in Grants Pass?

The month with the most snowfall in Grants Pass, Oregon, is February, when snow falls for 2.8 days and typically aggregates up to 1.5" (38mm) of snow.

When is Daylight Saving Time (DST) in Grants Pass?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts in Grants Pass, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 6. 2022, at 2:00 am, and the time zone reverts from PDT to PST.

When it does not snow in Grants Pass?

In Grants Pass, snow does not fall in May through October.

When are the longest days in Grants Pass?

June has the longest days of the year in Grants Pass, with an average of 15h and 14min of daylight.

What is the driest month in Grants Pass?

July is the month with the least rainfall in Grants Pass. Rain falls for 3.4 days and accumulates 0.12" (3mm) of precipitation.

What is the month with the most sunshine in Grants Pass?

The months with the most sunshine in Grants Pass, Oregon, are July and August, with an average of 11.8h of sunshine.

When is the highest UV index in Grants Pass?

The month with the highest UV index in Grants Pass, Oregon, is July, with an average maximum UV index of 6.

What is the warmest month in Grants Pass?

The warmest month is August, with an average high-temperature of 84.7°F (29.3°C) and an average low-temperature of 49.1°F (9.5°C).

What is the least humid month in Grants Pass?

August is the least humid month, with an average relative humidity of 63%.

What is the coldest month in Grants Pass?

With an average high-temperature of 46°F (7.8°C) and an average low-temperature of 31.5°F (-0.3°C), December is the coldest month.

What is the wettest month in Grants Pass?

December is the month with the most rainfall in Grants Pass. Rain falls for 15.9 days and accumulates 4.02" (102mm) of precipitation.

What is the month with the shortest days in Grants Pass?

With an average of 9h and 8min of daylight, December has the shortest days of the year.

What is the month with the least sunshine in Grants Pass?

December has the least sunshine of the year in Grants Pass, with an average of 4.7h of sunshine.

Average temperature
Grants Pass, OR

Average temperature - Grants Pass, OR

The warmest month (with the highest average high temperature) is August (84.7°F).
The month with the lowest average high temperature is December (46°F).

The month with the highest average low temperature is August (49.1°F).
The coldest month (with the lowest average low temperature) is December (31.5°F).

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Average pressure
Grants Pass, OR

Average pressure - Grants Pass, OR

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is August (29.99"Hg).

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Average wind speed
Grants Pass, OR

Average wind speed - Grants Pass, OR

The windiest month (with the highest average wind speed) is March (4mph).
The calmest month (with the lowest average wind speed) is August (3.2mph).

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Average rainfall
Grants Pass, OR

Average rainfall - Grants Pass, OR

The wettest month (with the highest rainfall) is December (4.02").
The driest month (with the least rainfall) is July (0.12").

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Average rainfall days
Grants Pass, OR

Average rainfall days - Grants Pass, OR

The month with the highest number of rainy days is March (18.7 days).
The month with the least rainy days is August (2.5 days).

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Average snowfall
Grants Pass, OR

Average snowfall - Grants Pass, OR

The month with the highest snowfall is February (1.5").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days
Grants Pass, OR

Average snowfall days - Grants Pass, 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).

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Average daylight / Average sunshine
Grants Pass, OR

Average daylight / Average sunshine - Grants Pass, OR

The month with the longest days is June (Average daylight: 15h and 14min).
The month with the shortest days is December (Average daylight: 9h and 8min).

The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).

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Average sunshine days
Grants Pass, OR

Average sunshine days - Grants Pass, OR

The month with the most sunshine days is July (26.7 days).
The month with the least sunshine days is March (10.8 days).

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Average UV index
Grants Pass, OR

Average UV index - Grants Pass, 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).

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Average visibility
Grants Pass, OR

Average visibility - Grants Pass, OR

The month with the highest visibility is August (6mi).
The months with the lowest visibility are January, February, March, April and December (4mi).

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