Climate and monthly weather forecast
Irrigon, OR

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Weather in January

January, like December, in Irrigon, Oregon, is an icy winter month, with an average temperature varying between 29.7°F (-1.3°C) and 39.9°F (4.4°C). Irrigon experiences a minor change to a still icy 39.9°F (4.4°C) in average high-temperature during January, closely reflecting December. Weather in January »

Weather in February

February, the last month of the winter in Irrigon, is a chilly month, with temperature in the range of an average low of 32.9°F (0.5°C) and an average high of 45.1°F (7.3°C). February's advent denotes a minor fluctuation in the average high-temperature to a chilly 45.1°F (7.3°C) from January's 39.9°F (4.4°C). Weather in February »

Weather in March

The first month of the spring, March, is a fresh month in Irrigon, Oregon, with temperature in the range of an average high of 54.1°F (12.3°C) and an average low of 37.9°F (3.3°C). In Irrigon, the average high-temperature in March increases from a frosty 45.1°F (7.3°C) in February to a cool 54.1°F (12.3°C). Weather in March »

Weather in April

April in Irrigon, Oregon, is a comfortable spring month, with an average temperature ranging between max 62.4°F (16.9°C) and min 43.3°F (6.3°C). April signals a minor shift in the average high-temperature, moving from March's cool 54.1°F (12.3°C) to a refreshing 62.4°F (16.9°C). Weather in April »

Weather in May

May, the last month of the spring in Irrigon, is an agreeable month, with an average temperature fluctuating between 72.1°F (22.3°C) and 49.8°F (9.9°C). As Irrigon transitions into May, the average high-temperature is observed to rise from a refreshing 62.4°F (16.9°C) in April to a pleasant 72.1°F (22.3°C). Weather in May »

Weather in June

June, the first month of the summer in Irrigon, is a moderately hot month, with an average temperature varying between 55.9°F (13.3°C) and 79.2°F (26.2°C). The average high-temperature mildly increases in June, edging from a pleasant 72.1°F (22.3°C) in May to a moderately hot 79.2°F (26.2°C). Weather in June »

Weather in July

July is a hot summer month in Irrigon, Oregon, with an average temperature ranging between min 62.8°F (17.1°C) and max 89.1°F (31.7°C). In Irrigon, temperatures reach their average annual highs in July, measuring 89.1°F (31.7°C) and a minimum average of 62.8°F (17.1°C). Weather in July »

Weather in August

The last month of the summer, August, is another hot month in Irrigon, Oregon, with an average temperature ranging between max 87.8°F (31°C) and min 64.2°F (17.9°C). August's advent presents an average high-temperature of a still tropical 87.8°F (31°C), indicating a slight variation from the conditions of the previous month. Weather in August »

Weather in September

September, the first month of the autumn in Irrigon, is also a moderately hot month, with an average temperature fluctuating between 57.4°F (14.1°C) and 77.2°F (25.1°C). As August transitions to September, the average high-temperature falls from a tropical 87.8°F (31°C) to a moderately hot 77.2°F (25.1°C). Weather in September »

Weather in October

October, the same as September, is another enjoyable autumn month in Irrigon, Oregon, with an average temperature varying between 61.9°F (16.6°C) and 46.8°F (8.2°C). October marks a distinct drop in the average high-temperature, descending from September's moderately hot 77.2°F (25.1°C) to a refreshing 61.9°F (16.6°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a frosty month in Irrigon, Oregon, with an average temperature ranging between max 49.1°F (9.5°C) and min 36.7°F (2.6°C). A decrease in the average high-temperature is observed during November, shifting from a refreshing 61.9°F (16.6°C) in October to a chilly 49.1°F (9.5°C). Weather in November »

Weather in December

The first month of the winter, December, is also an icy month in Irrigon, Oregon, with an average temperature fluctuating between 28.6°F (-1.9°C) and 38.7°F (3.7°C). December brings the lowest temperatures, with an average high of 38.7°F (3.7°C) and an average low of 28.6°F (-1.9°C). Weather in December »
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Frequently asked questions

What is the most humid month in Irrigon?

The most humid month in Irrigon is January, with an average relative humidity of 79%.

How much does it rain in Irrigon?

Throughout the year, in Irrigon, there are 106.1 rainfall days, and 7.76" (197mm) of precipitation is accumulated.

When does it snow in Irrigon?

Months with snowfall are January through March, September, November and December.

How many days does it snow in Irrigon?

Throughout the year, there are 10.3 snowfall days, and 6.02" (153mm) of snow is accumulated.

What is the month with the least sunshine in Irrigon?

The months with the least sunshine in Irrigon, Oregon, are January and December, with an average of 5.4h of sunshine.

What are the months with the lowest UV index in Irrigon?

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

What is the snowiest month in Irrigon?

February is the month with the most snowfall. Snow falls for 2.9 days and accumulates 2.83" (72mm) of snow.

What is the wettest month in Irrigon?

March is the month with the most rainfall. Rain falls for 13.1 days and accumulates 1.02" (26mm) of precipitation.

When is Daylight Saving Time (DST) in Irrigon?

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 in Irrigon?

In Irrigon, Oregon, snow does not fall in April through August and October.

When are the longest days in Irrigon?

The month with the longest days in Irrigon, Oregon, is June, with an average of 15h and 42min of daylight.

What is the warmest month in Irrigon?

Irrigon, Oregon, experiences its average highest temperatures in July, reaching a peak of 89.1°F (31.7°C) and a minimum of 62.8°F (17.1°C).

What are the least humid months in Irrigon?

The months with the lowest humidity are July and August, with an average relative humidity of 36%.

What is the driest month in Irrigon?

The month with the least rainfall is July, when the rain falls for 3.8 days and typically collects 0.16" (4mm) of precipitation.

What is the month with the most sunshine in Irrigon?

July and August, with an average of 12h of sunshine, are months with the most sunshine.

When is the highest UV index in Irrigon?

July is the month with the highest UV index in Irrigon, with an average maximum UV index of 7.

What is the coldest month in Irrigon?

December, on average, is the coldest month in Irrigon, Oregon, registering a high temperature of 38.7°F (3.7°C) and a low of 28.6°F (-1.9°C).

What is the month with the shortest days in Irrigon?

December has the shortest days of the year in Irrigon, Oregon, with an average of 8h and 42min of daylight.

Average temperature
Irrigon, OR

Average temperature - Irrigon, OR

The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is December (38.7°F).

The month with the highest average low temperature is August (64.2°F).
The coldest month (with the lowest average low temperature) is December (28.6°F).

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Average pressure
Irrigon, OR

Average pressure - Irrigon, OR

The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).

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Average wind speed
Irrigon, OR

Average wind speed - Irrigon, OR

The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is December (6.2mph).

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Average humidity
Irrigon, OR

Average humidity - Irrigon, OR

The month with the highest relative humidity is January (79%).
The months with the lowest relative humidity are July and August (36%).

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Average rainfall
Irrigon, OR

Average rainfall - Irrigon, OR

The wettest month (with the highest rainfall) is March (1.02").
The driest month (with the least rainfall) is July (0.16").

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Average rainfall days
Irrigon, OR

Average rainfall days - Irrigon, OR

The month with the highest number of rainy days is March (13.1 days).
The month with the least rainy days is July (3.8 days).

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Average snowfall
Irrigon, OR

Average snowfall - Irrigon, OR

The month with the highest snowfall is February (2.83").
The months with the least snowfall are April, May, June, July, August and October (0").

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Average snowfall days
Irrigon, OR

Average snowfall days - Irrigon, OR

The month with the highest number of snowfall days is December (3.2 days).
The months with the least snowfall days are April, May, June, July, August and October (0 days).

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Average daylight / Average sunshine
Irrigon, OR

Average daylight / Average sunshine - Irrigon, OR

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 5h and 24min).

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Average sunshine days
Irrigon, OR

Average sunshine days - Irrigon, OR

The month with the most sunshine days is July (25.3 days).
The month with the least sunshine days is February (14 days).

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Average UV index
Irrigon, OR

Average UV index - Irrigon, OR

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average visibility
Irrigon, OR

Average visibility - Irrigon, OR

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).

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Irrigon, Oregon, USA

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