Seaside, OR Weather - Forecast & Monthly Averages

TEMPERATURE	55
HUMIDITY	77
PRESSURE	101150
WIND COND.	190 31.7

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Weather Quick Facts

The highest monthly average temperature in Seaside for August is 60.9 degrees
The lowest monthly average temperature in Seaside for December is 42.4 degrees
The most monthly precipitation in Seaside occurs in November with 12.7 inches
The air quality index in Seaside is 57% better than the national average
The pollution index in Seaside is 36% better than the national average

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Seaside 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	36°F	51°F	43°F	10.5"
February	37°F	53°F	44°F	6.7"
March	39°F	55°F	46°F	9.5"
April	40°F	57°F	49°F	6.0"
May	45°F	63°F	53°F	4.1"
June	50°F	66°F	57°F	2.4"
July	53°F	69°F	60°F	1.0"
August	53°F	71°F	61°F	0.8"
September	50°F	70°F	59°F	3.3"
October	45°F	63°F	53°F	7.4"
November	40°F	55°F	47°F	12.7"
December	36°F	49°F	42°F	11.3"

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Seaside 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	Seaside	Oregon	National
Air quality index	18	32	42
Pollution index	1,735,090	7,156,356	2,726,193

Seaside air quality

Measurement	Total
Days measured	360
Days with good air quality	338
Days with moderate air quality	22
Days w/ poor A.Q. for sensitive groups	0
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.010%
Benzene	0.020%
Carbon Tetrachloride	0.010%
Lead	0.010%
Mercury	0.002%

Average monthly Seaside temperature with heat index

Seaside monthly precipitation with daily maximum

Seaside monthly snow depth with daily maximum

Seaside monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Cannon Beach, OR	1,554	18	64.0%
Warrenton, OR	5,635	18	64.0%
Gearhart, OR	1,881	18	64.0%
Astoria, OR	9,929	18	64.0%
Jeffers Gardens, OR	312	18	64.0%
Seaside, OR	6,811	18	64.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Nanaimo E, BC	6,812	n/a
Valley Park, MO	6,813	54	8.0%
Prairie View, TX	6,813	52	4.0%
Alnwick/Haldimand, ON	6,807	n/a
East Foothills, CA	6,815	43	14.0%
Seaside, OR	6,811	18	64.0%

Source: The Seaside, 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.