Sumner, WA Weather - Forecast & Monthly Averages

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TEMPERATURE
HUMIDITY
PRESSURE
WIND COND.

Weather Quick Facts

The highest monthly average temperature in Sumner for July is 65.3 degrees
The lowest monthly average temperature in Sumner for December is 38.2 degrees
The most monthly precipitation in Sumner occurs in November with 8.2 inches
The air quality index in Sumner is 7% worse than the national average
The pollution index in Sumner is 549% worse than the national average

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Sumner 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	33°F	47°F	39°F	7.4"
February	33°F	51°F	41°F	4.9"
March	36°F	55°F	44°F	6.1"
April	38°F	60°F	48°F	4.0"
May	44°F	67°F	55°F	4.5"
June	49°F	72°F	60°F	3.0"
July	52°F	80°F	65°F	1.5"
August	52°F	80°F	65°F	3.4"
September	48°F	73°F	60°F	4.4"
October	42°F	62°F	51°F	6.3"
November	36°F	52°F	44°F	8.2"
December	32°F	46°F	38°F	6.9"

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Sumner 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	Sumner	Washington	National
Air quality index	45	36	42
Pollution index	17,693,800	4,541,850	2,726,193

Sumner air quality

Measurement	Total
Days measured	365
Days with good air quality	236
Days with moderate air quality	127
Days w/ poor A.Q. for sensitive groups	2
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.010%
Benzene	0.300%
Carbon Tetrachloride	0.050%
Lead	0.110%
Mercury	0.020%

Average monthly Sumner temperature with heat index

Sumner monthly precipitation with daily maximum

Sumner monthly snow depth with daily maximum

Sumner monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Ruston, WA	1,379	18	64.0%
Tacoma, WA	223,137	18	64.0%
Browns Point, WA	989	18	64.0%
Dash Point, WA	1,045	18	64.0%
Fircrest, WA	7,059	30	40.0%
Sumner, WA	10,604	45	10.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Hillsdale, NJ	10,605	51	2.0%
Troy, IL	10,601	54	8.0%
Nanticoke, PA	10,607	38	24.0%
Milton, FL	10,597	41	18.0%
Canandaigua, NY	10,611	37	26.0%
Sumner, WA	10,604	45	10.0%

Source: The Sumner, WA 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.