Roy, UT Weather - Forecast & Monthly Averages

TEMPERATURE	34
HUMIDITY	69
PRESSURE	102070
WIND COND.	190 11.2

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Weather Quick Facts

The highest monthly average temperature in Roy for July is 79.3 degrees
The lowest monthly average temperature in Roy for January is 26.9 degrees
The most monthly precipitation in Roy occurs in May with 2.5 inches
The air quality index in Roy is 7% worse than the national average
The pollution index in Roy is 525% worse than the national average

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Roy 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	19°F	35°F	27°F	1.8"
February	26°F	43°F	34°F	1.3"
March	33°F	55°F	43°F	1.7"
April	38°F	62°F	49°F	2.3"
May	46°F	72°F	58°F	2.5"
June	55°F	85°F	70°F	1.1"
July	65°F	94°F	79°F	0.3"
August	63°F	90°F	76°F	0.8"
September	53°F	80°F	66°F	1.5"
October	42°F	65°F	52°F	1.7"
November	32°F	52°F	40°F	1.1"
December	22°F	37°F	29°F	1.7"

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Roy 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	Roy	Utah	National
Air quality index	45	45	42
Pollution index	17,030,300	3,340,369	2,726,193

Roy air quality

Measurement	Total
Days measured	365
Days with good air quality	244
Days with moderate air quality	113
Days w/ poor A.Q. for sensitive groups	8
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.280%
Benzene	0.230%
Carbon Tetrachloride	0.000%
Lead	0.360%
Mercury	0.040%

Average monthly Roy temperature with heat index

Roy monthly precipitation with daily maximum

Roy monthly snow depth with daily maximum

Roy monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Kaysville, UT	31,957	45	10.0%
Syracuse, UT	30,366	45	10.0%
Hooper, UT	8,850	45	10.0%
North Ogden, UT	19,930	45	10.0%
Riverdale, UT	8,826	45	10.0%
Roy, UT	39,243	45	10.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Milton, GA	39,252	52	4.0%
Lancaster, TX	39,264	51	2.0%
Port Moody, BC	39,217	n/a
Northglenn, CO	39,201	58	16.0%
Germantown, TN	39,196	45	10.0%
Roy, UT	39,243	45	10.0%

Source: The Roy, UT 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.