Seneca, OR Weather - Forecast & Monthly Averages

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Weather Quick Facts

The highest monthly average temperature in Seneca for July is 73.2 degrees
The lowest monthly average temperature in Seneca for December is 32.4 degrees
The most monthly precipitation in Seneca occurs in May with 2.7 inches
The air quality index in Seneca is 52% better than the national average
The pollution index in Seneca is 27% worse than the national average

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Seneca Average Temperature

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
Month	Temp. _(min)	Temp. _(max)	Temp. _(avg)	Precipitation
January	28°F	43°F	34°F	1.8"
February	30°F	47°F	38°F	1.0"
March	34°F	54°F	42°F	1.4"
April	36°F	59°F	46°F	1.7"
May	42°F	68°F	54°F	2.7"
June	49°F	77°F	62°F	2.4"
July	56°F	90°F	73°F	2.0"
August	55°F	88°F	71°F	2.1"
September	48°F	80°F	63°F	1.7"
October	41°F	64°F	51°F	2.1"
November	33°F	50°F	40°F	1.4"
December	26°F	40°F	32°F	1.2"

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Seneca air quality index & pollution index

In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
Index	Seneca	Oregon	National
Air quality index	20	32	42
Pollution index	3,459,540	7,156,356	2,726,193

Seneca air quality

Measurement	Total
Days measured	365
Days with good air quality	344
Days with moderate air quality	21
Days w/ poor A.Q. for sensitive groups	0
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.003%
Benzene	0.070%
Carbon Tetrachloride	0.010%
Lead	0.004%
Mercury	0.002%

Average monthly Seneca temperature with heat index

Seneca monthly precipitation with daily maximum

Seneca monthly snow depth with daily maximum

Seneca monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Seneca, OR	242	20	60.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Port Costa, CA	242	40	20.0%
Orchard Hill, GA	242	38	24.0%
Talmo, GA	242	37	26.0%
Patterson, IA	242	39	22.0%
Wardner, ID	242	43	14.0%
Seneca, OR	242	20	60.0%

Source: The Seneca, OR weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.