Hamilton, WA Weather - Forecast & Monthly Averages

TEMPERATURE	45
HUMIDITY	77
PRESSURE	100560
WIND COND.	103 12.9

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Weather Quick Facts

The highest monthly average temperature in Hamilton for August is 60.9 degrees
The lowest monthly average temperature in Hamilton for December is 38.8 degrees
The most monthly precipitation in Hamilton occurs in October with 2.9 inches
The air quality index in Hamilton is 43% better than the national average
The pollution index in Hamilton is 479% worse than the national average

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Hamilton 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	35°F	45°F	40°F	1.2"
February	37°F	48°F	41°F	2.3"
March	40°F	51°F	45°F	2.5"
April	42°F	56°F	48°F	0.6"
May	46°F	61°F	53°F	1.2"
June	50°F	66°F	57°F	0.9"
July	52°F	71°F	60°F	0.0"
August	52°F	71°F	61°F	0.0"
September	50°F	66°F	57°F	0.5"
October	45°F	57°F	51°F	2.9"
November	40°F	50°F	44°F	2.4"
December	35°F	44°F	39°F	1.4"

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

Hamilton 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 Hamilton temperature with heat index

Hamilton monthly precipitation with daily maximum

Hamilton monthly snow depth with daily maximum

Hamilton monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Concrete, WA	915	24	52.0%
Lyman, WA	277	24	52.0%
Sedro-Woolley, WA	11,919	24	52.0%
Big Lake, WA	2,251	24	52.0%
Mount Vernon, WA	35,502	24	52.0%
Hamilton, WA	311	24	52.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Waucoma, IA	311	39	22.0%
Plevna, MT	311	33	34.0%
Macclesfield, NC	311	36	28.0%
Bridgeville, NJ	311	34	32.0%
Rosewood, OH	311	45	10.0%
Hamilton, WA	311	24	52.0%

Source: The Hamilton, 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.