Lake Ketchum, WA Weather - Forecast & Monthly Averages

TEMPERATURE	44
HUMIDITY	89
PRESSURE	101590
WIND COND.	5.4

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Weather Quick Facts

The highest monthly average temperature in Lake Ketchum for August is 63.3 degrees
The lowest monthly average temperature in Lake Ketchum for December is 37.6 degrees
The most monthly precipitation in Lake Ketchum occurs in November with 4 inches
The air quality index in Lake Ketchum is 43% better than the national average
The pollution index in Lake Ketchum is 479% worse than the national average

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Lake Ketchum 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	46°F	39°F	3.0"
February	34°F	50°F	41°F	1.7"
March	37°F	54°F	45°F	3.4"
April	40°F	59°F	48°F	2.0"
May	45°F	65°F	54°F	2.4"
June	49°F	70°F	59°F	1.9"
July	52°F	77°F	63°F	1.3"
August	52°F	78°F	63°F	1.4"
September	49°F	71°F	58°F	2.4"
October	43°F	60°F	50°F	3.4"
November	37°F	52°F	44°F	4.0"
December	32°F	44°F	38°F	3.1"

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Lake Ketchum 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	Lake Ketchum	Washington	National
Air quality index	24	36	42
Pollution index	15,778,900	4,541,850	2,726,193

Lake Ketchum air quality

Measurement	Total
Days measured	365
Days with good air quality	361
Days with moderate air quality	4
Days w/ poor A.Q. for sensitive groups	0
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.010%
Benzene	0.270%
Carbon Tetrachloride	0.040%
Lead	0.160%
Mercury	0.003%

Average monthly Lake Ketchum temperature with heat index

Lake Ketchum monthly precipitation with daily maximum

Lake Ketchum monthly snow depth with daily maximum

Lake Ketchum monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Anacortes, WA	17,231	24	52.0%
La Conner, WA	974	24	52.0%
Silvana, WA	14	24	52.0%
Lake McMurray, WA	478	24	52.0%
Mount Vernon, WA	35,502	24	52.0%
Lake Ketchum, WA	1,278	24	52.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Berry Creek, CA	1,278	46	8.0%
Grabill, IN	1,278	45	10.0%
Musquash, NB	1,278	n/a
Litchfield, CT	1,279	37	26.0%
St. Leo, FL	1,277	36	28.0%
Lake Ketchum, WA	1,278	24	52.0%

Source: The Lake Ketchum, 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.