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, the same as December, in Grants Pass, Oregon, is a frosty winter month, with temperature in the range of an average low of 32.5°F (0.3°C) and an average high of 47.8°F (8.8°C). In Grants Pass, the average high-temperature in January is essentially 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 an average temperature ranging between min 32.5°F (0.3°C) and max 49.3°F (9.6°C). In February, the average high-temperature is practically 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 moderate 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 fresh 52.5°F (11.4°C) in March to a moderate 57.9°F (14.4°C). Weather in April »

Weather in May

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

Weather in June

The first month of the summer, June, is a warm month in Grants Pass, Oregon, with an average temperature ranging between min 44.1°F (6.7°C) and max 73.8°F (23.2°C). In June, the average high-temperature slightly increases from an enjoyable 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 a moderately hot summer month in Grants Pass, Oregon, with temperature in the range of an average low of 48.7°F (9.3°C) and an average high of 83.8°F (28.8°C). In Grants Pass, the average high-temperature in July increases from 73.8°F (23.2°C) in June to a still warm 83.8°F (28.8°C). Weather in July »

Weather in August

August, the last month of the summer in Grants Pass, is also a moderately hot month, with temperature in the range of an average low of 49.1°F (9.5°C) and an average high of 84.7°F (29.3°C). 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). In August, the average heat index is calculated to be a hot 89.8°F (32.1°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 an average temperature fluctuating between 77.4°F (25.2°C) and 45°F (7.2°C). In September, the average high-temperature marginally drops from a moderately hot 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, like September, in Grants Pass, Oregon, is another enjoyable autumn month, with an average temperature ranging between max 65.5°F (18.6°C) and min 40.6°F (4.8°C). In October, the average high-temperature decreases from a moderately hot 77.4°F (25.2°C) in September to an enjoyable 65.5°F (18.6°C). Weather in October »

Weather in November

November, the last month of the autumn in Grants Pass, is also a fresh month, with an average temperature varying between 36°F (2.2°C) and 54°F (12.2°C). In Grants Pass, the average high-temperature in November drops from a comfortable 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 also a frosty month in Grants Pass, Oregon, with an average temperature ranging between max 46°F (7.8°C) and min 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?

With an average relative humidity of 85%, January is the most humid month.

How many days does it rain in Grants Pass?

Throughout the year, in Grants Pass, there are 135.3 rainfall days, and 23.54" (598mm) of precipitation is accumulated.

When does it snow in Grants Pass?

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

How much does it snow in Grants Pass?

In Grants Pass, during the entire year, snow falls for 7.9 days and aggregates up to 5.12" (130mm) of snow.

What are the months with the lowest UV index in Grants Pass?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Grants Pass, Oregon.

When does it snow the most in Grants Pass?

The month with the most snowfall 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, 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, Oregon, snow does not fall in May through October.

When are the longest days in Grants Pass?

The month with the longest days is June, 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 are the months with the most sunshine in Grants Pass?

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

When is the highest UV index in Grants Pass?

With an average maximum UV index of 6, July is the month with the highest UV index.

What is the warmest month in Grants Pass?

The warmest month in Grants Pass 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?

The least humid month is August, 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 in Grants Pass, Oregon.

What is the rainiest month in Grants Pass?

The month with the most rainfall in Grants Pass is December, when the rain falls for 15.9 days and typically aggregates up to 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?

The month with the least sunshine in Grants Pass, Oregon, is December, 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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