Climate and monthly weather forecast
Seneca, OR

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Weather in January

January, like December, in Seneca, Oregon, is a wintry winter month, with an average temperature fluctuating between 35.2°F (1.8°C) and 22.1°F (-5.5°C). The high-temperature average in January for Seneca, Oregon, is a still icy 35.2°F (1.8°C), staying closely aligned with December's conditions. Weather in January »

Weather in February

The last month of the winter, February, is another cold month in Seneca, Oregon, with temperature in the range of an average high of 36.3°F (2.4°C) and an average low of 22.5°F (-5.3°C). With the onset of February, Seneca's average high-temperature clocks in at a still cold 36.3°F (2.4°C), showing a minor fluctuation from the previous month. Weather in February »

Weather in March

The first month of the spring, March, is still a cold month in Seneca, Oregon, with temperature in the range of an average low of 26.2°F (-3.2°C) and an average high of 42.6°F (5.9°C). March sees a marginal temperature increase, moving from a cold 36.3°F (2.4°C) in February to a still icy 42.6°F (5.9°C). Weather in March »

Weather in April

April is a fresh spring month in Seneca, Oregon, with an average temperature fluctuating between 29.3°F (-1.5°C) and 50.4°F (10.2°C). April brings a slight increase in the average high-temperature, progressing from a cold 42.6°F (5.9°C) in March to a fresh 50.4°F (10.2°C). Weather in April »

Weather in May

May, the last month of the spring in Seneca, is a refreshing month, with temperature in the range of an average low of 36.1°F (2.3°C) and an average high of 61.3°F (16.3°C). May shows a rise in the average high-temperature, moving from April's cool 50.4°F (10.2°C) to an enjoyable 61.3°F (16.3°C). Weather in May »

Weather in June

June, the first month of the summer in Seneca, is an agreeable month, with an average temperature ranging between min 41.2°F (5.1°C) and max 69.4°F (20.8°C). June's arrival signals a subtle increase in average high-temperatures, moving from May's comfortable 61.3°F (16.3°C) to an agreeable 69.4°F (20.8°C). Weather in June »

Weather in July

July in Seneca, Oregon, is a warm summer month, with an average temperature fluctuating between 48.4°F (9.1°C) and 81.7°F (27.6°C). The warmest temperatures occur during July, when averages reach a peak of 81.7°F (27.6°C) and a low of 48.4°F (9.1°C). The heat index for July is evaluated at 82.4°F (28°C). Weather in July »

Weather in August

August, the last month of the summer in Seneca, is also a moderately hot month, with temperature in the range of an average high of 81°F (27.2°C) and an average low of 49.6°F (9.8°C). Seneca's average high-temperature in August is a still warm 81°F (27.2°C), marking an insignificant difference from the 81.7°F (27.6°C) of July. Weather in August »

Weather in September

The first month of the autumn, September, is still a pleasant month in Seneca, Oregon, with an average temperature ranging between max 71.2°F (21.8°C) and min 44.2°F (6.8°C). September weather is marked by a drop in the average high-temperature, falling from a warm 81°F (27.2°C) in August to a pleasant 71.2°F (21.8°C). Weather in September »

Weather in October

October, the same as September, in Seneca, Oregon, is a moderate autumn month, with temperature in the range of an average low of 35.6°F (2°C) and an average high of 56.3°F (13.5°C). With the onset of October, Seneca's average high-temperature witnesses a clear drop, receding from September's pleasant 71.2°F (21.8°C) to a mild 56.3°F (13.5°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a frosty month in Seneca, Oregon, with an average temperature fluctuating between 43°F (6.1°C) and 27.5°F (-2.5°C). November's arrival comes with a decrease in the average high-temperature, moving from a mild 56.3°F (13.5°C) in October to a chilly 43°F (6.1°C). Weather in November »

Weather in December

The first month of the winter, December, is also a wintry month in Seneca, Oregon, with an average temperature fluctuating between 33.4°F (0.8°C) and 19.6°F (-6.9°C). December, on average, is the coldest month, registering a high temperature of 33.4°F (0.8°C) and a low of 19.6°F (-6.9°C). Weather in December »
Updated: Feb 13, 2024 | Published by: Weather U.S. | Resources

Frequently asked questions

How much does it rain in Seneca?

Throughout the year, in Seneca, there are 127.7 rainfall days, and 17.09" (434mm) of precipitation is accumulated.

When does it snow in Seneca?

Months with snowfall in Seneca, Oregon, are January through May, September through December.

How much does it snow in Seneca?

In Seneca, Oregon, during the entire year, snow falls for 62.5 days and aggregates up to 39.17" (995mm) of snow.

What is the month with the least sunshine in Seneca?

January and February, with an average of 5.2h of sunshine, are months with the least sunshine in Seneca.

What is the month with the lowest UV index in Seneca?

The months with the lowest UV index in Seneca, Oregon, are January through March, October through December, with an average maximum UV index of 2.

What is the most humid month in Seneca?

February is the most humid month in Seneca, Oregon, with an average relative humidity of 85%.

What is the rainiest month in Seneca?

February is the month with the most rainfall in Seneca. Rain falls for 11.9 days and accumulates 2.28" (58mm) of precipitation.

What is the snowiest month in Seneca?

The month with the most snowfall in Seneca is February, when snow falls for 12.5 days and typically aggregates up to 10.31" (262mm) of snow.

When is Daylight Saving Time (DST) in Seneca?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Seneca, 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 Seneca?

In Seneca, Oregon, snow does not fall in June through August.

When are the longest days in Seneca?

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

What time of the year is the hottest in Seneca?

The month of July sees the average highest temperatures in Seneca, reaching 81.7°F (27.6°C) at the peak and 48.4°F (9.1°C) at the low.

What is the driest month in Seneca?

The month with the least rainfall in Seneca is July, when the rain falls for 3.8 days and typically collects 0.24" (6mm) of precipitation.

What is the month with the highest UV index in Seneca?

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

What is the least humid month in Seneca?

The least humid month is August, with an average relative humidity of 42%.

What month has the most sunshine in Seneca?

August has the most sunshine of the year, with an average of 12.1h of sunshine.

What are the coldest months in Seneca?

December proves to be the coldest month, recording an average maximum temperature of 33.4°F (0.8°C) and a minimum temperature of 19.6°F (-6.9°C).

What is the month with the shortest days in Seneca?

December has the shortest days of the year in Seneca, with an average of 8h and 54min of daylight.

Average temperature
Seneca, OR

Average temperature - Seneca, OR

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is December (33.4°F).

The month with the highest average low temperature is August (49.6°F).
The coldest month (with the lowest average low temperature) is December (19.6°F).

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Average pressure
Seneca, OR

Average pressure - Seneca, OR

The month with the highest atmospheric pressure is January (30.22"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).

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Average wind speed
Seneca, OR

Average wind speed - Seneca, OR

The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest months (with the lowest average wind speed) are August and September (5mph).

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Average rainfall
Seneca, OR

Average rainfall - Seneca, OR

The wettest month (with the highest rainfall) is February (2.28").
The driest month (with the least rainfall) is July (0.24").

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Average rainfall days
Seneca, OR

Average rainfall days - Seneca, OR

The month with the highest number of rainy days is March (17.3 days).
The month with the least rainy days is August (3.3 days).

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Average snowfall
Seneca, OR

Average snowfall - Seneca, OR

The month with the highest snowfall is February (10.31").
The months with the least snowfall are June, July and August (0").

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Average snowfall days
Seneca, OR

Average snowfall days - Seneca, OR

The month with the highest number of snowfall days is December (14.5 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight / Average sunshine
Seneca, OR

Average daylight / Average sunshine - Seneca, OR

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 8h and 54min).

The month with the most sunshine is August (Average sunshine: 12h and 6min).
The months with the least sunshine are January and February (Average sunshine: 5h and 12min).

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Average sunshine days
Seneca, OR

Average sunshine days - Seneca, OR

The month with the most sunshine days is July (24.9 days).
The month with the least sunshine days is February (9 days).

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Average UV index
Seneca, OR

Average UV index - Seneca, OR

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

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Average visibility
Seneca, OR

Average visibility - Seneca, OR

The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).

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Seneca, Oregon, USA

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