Rock Springs, WY Weather - Forecast & Monthly Averages

TEMPERATURE	20
HUMIDITY	88
PRESSURE	102710
WIND COND.	5.4

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Weather Quick Facts

The highest monthly average temperature in Rock Springs for July is 70.6 degrees
The lowest monthly average temperature in Rock Springs for January is 21.5 degrees
The most monthly precipitation in Rock Springs occurs in May with 1.4 inches
The air quality index in Rock Springs is 9% worse than the national average
The pollution index in Rock Springs is 106% worse than the national average

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Rock Springs 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	12°F	31°F	22°F	0.3"
February	17°F	36°F	25°F	0.3"
March	24°F	47°F	34°F	0.5"
April	29°F	55°F	41°F	0.9"
May	37°F	65°F	50°F	1.4"
June	47°F	79°F	62°F	0.5"
July	55°F	87°F	71°F	0.7"
August	52°F	83°F	67°F	0.7"
September	44°F	74°F	58°F	0.8"
October	33°F	59°F	45°F	0.7"
November	23°F	45°F	33°F	0.3"
December	13°F	31°F	22°F	0.2"

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Rock Springs 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	Rock Springs	Wyoming	National
Air quality index	46	39	42
Pollution index	5,619,220	1,779,975	2,726,193

Rock Springs air quality

Measurement	Total
Days measured	365
Days with good air quality	262
Days with moderate air quality	100
Days w/ poor A.Q. for sensitive groups	3
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.460%
Benzene	0.070%
Carbon Tetrachloride	0.002%
Lead	0.120%
Mercury	0.270%

Average monthly Rock Springs temperature with heat index

Rock Springs monthly precipitation with daily maximum

Rock Springs monthly snow depth with daily maximum

Rock Springs monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
North Rock Springs, WY	2,727	46	8.0%
Clearview Acres, WY	994	46	8.0%
Reliance, WY	253	46	8.0%
Green River, WY	12,025	46	8.0%
Superior, WY	153	46	8.0%
Rock Springs, WY	23,238	46	8.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Roseburg, OR	23,237	24	52.0%
Cottage Lake, WA	23,239	45	10.0%
Avon, OH	23,233	50	= 100
Greenbelt, MD	23,253	47	6.0%
East Hants, NS	23,212	n/a
Rock Springs, WY	23,238	46	8.0%

Source: The Rock Springs, WY 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.