Walla Walla, WA Weather - Forecast & Monthly Averages

TEMPERATURE	40
HUMIDITY	100
PRESSURE	101290
WIND COND.	100 9.4

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Weather Quick Facts

The highest monthly average temperature in Walla Walla for July is 77.4 degrees
The lowest monthly average temperature in Walla Walla for December is 33.8 degrees
The most monthly precipitation in Walla Walla occurs in March with 2.6 inches
The air quality index in Walla Walla is 45% better than the national average
The pollution index in Walla Walla is 74% better than the national average

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Walla Walla 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	29°F	43°F	35°F	1.8"
February	33°F	49°F	39°F	1.4"
March	38°F	58°F	47°F	2.6"
April	42°F	64°F	52°F	2.0"
May	49°F	74°F	60°F	1.8"
June	55°F	82°F	67°F	1.5"
July	63°F	93°F	77°F	0.3"
August	62°F	91°F	76°F	0.2"
September	54°F	81°F	66°F	0.6"
October	44°F	66°F	54°F	1.7"
November	36°F	51°F	43°F	2.3"
December	28°F	41°F	34°F	2.5"

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Walla Walla 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	Walla Walla	Washington	National
Air quality index	23	36	42
Pollution index	697,942	4,541,850	2,726,193

Walla Walla air quality

Measurement	Total
Days measured	365
Days with good air quality	318
Days with moderate air quality	47
Days w/ poor A.Q. for sensitive groups	0
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.020%
Benzene	0.004%
Carbon Tetrachloride	0.001%
Lead	0.010%
Mercury	0.010%

Average monthly Walla Walla temperature with heat index

Walla Walla monthly precipitation with daily maximum

Walla Walla monthly snow depth with daily maximum

Walla Walla monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
College Place, WA	9,311	23	54.0%
Milton-Freewater, OR	7,044	23	54.0%
Garrett, WA	1,815	23	54.0%
Umapine, OR	537	23	54.0%
Walla Walla East, WA	2,459	23	54.0%
Walla Walla, WA	32,951	23	54.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Copperas Cove, TX	32,960	42	16.0%
Springfield, VA	32,960	47	6.0%
Baldwin, NY	32,939	51	2.0%
Fort Erie, ON	32,970	n/a
Fair Lawn, NJ	32,986	51	2.0%
Walla Walla, WA	32,951	23	54.0%

Source: The Walla Walla, 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.