Royal City, WA Weather - Forecast & Monthly Averages

TEMPERATURE
HUMIDITY
PRESSURE
WIND COND.	20 4.8

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Weather Quick Facts

The highest monthly average temperature in Royal City for July is 80.3 degrees
The lowest monthly average temperature in Royal City for January is 29.9 degrees
The most monthly precipitation in Royal City occurs in September with 2.3 inches
The air quality index in Royal City is 57% better than the national average
The pollution index in Royal City is 2% better than the national average

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Royal City 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	23°F	37°F	30°F	0.7"
February	28°F	49°F	38°F	1.2"
March	37°F	61°F	49°F	1.8"
April	40°F	67°F	54°F	0.9"
May	50°F	78°F	65°F	1.7"
June	55°F	83°F	69°F	1.4"
July	64°F	95°F	80°F	1.1"
August	60°F	92°F	76°F	1.4"
September	51°F	80°F	66°F	2.3"
October	42°F	64°F	53°F	1.8"
November	32°F	47°F	40°F	1.5"
December	25°F	37°F	31°F	2.1"

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Royal City 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	Royal City	Washington	National
Air quality index	18	36	42
Pollution index	2,683,410	4,541,850	2,726,193

Royal City air quality

Measurement	Total
Days measured	365
Days with good air quality	339
Days with moderate air quality	26
Days w/ poor A.Q. for sensitive groups	0
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.000%
Benzene	0.040%
Carbon Tetrachloride	0.004%
Lead	0.030%
Mercury	0.000%

Average monthly Royal City temperature with heat index

Royal City monthly precipitation with daily maximum

Royal City monthly snow depth with daily maximum

Royal City monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
George, WA	823	18	64.0%
Mattawa, WA	5,040	38	24.0%
Desert Aire, WA	2,716	38	24.0%
Royal City, WA	2,384	18	64.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Commerce, OK	2,384	38	24.0%
Kelsey, MB	2,384	n/a
Gray Summit, MO	2,383	54	8.0%
Tofino, BC	2,383	n/a
Kenly, NC	2,385	40	20.0%
Royal City, WA	2,384	18	64.0%

Source: The Royal City, 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.