St. Ann, MO Weather - Forecast & Monthly Averages

TEMPERATURE	38
HUMIDITY	52
PRESSURE	101560
WIND COND.	320 35.3

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Weather Quick Facts

The highest monthly average temperature in St. Ann for July is 80.9 degrees
The lowest monthly average temperature in St. Ann for January is 33.1 degrees
The most monthly precipitation in St. Ann occurs in April with 5.4 inches
The air quality index in St. Ann is 28% worse than the national average
The pollution index in St. Ann is 225% worse than the national average

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St. Ann 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	24°F	45°F	33°F	2.4"
February	25°F	48°F	35°F	2.2"
March	37°F	61°F	48°F	3.6"
April	47°F	72°F	59°F	5.4"
May	57°F	80°F	68°F	4.6"
June	67°F	89°F	78°F	5.2"
July	70°F	92°F	81°F	4.2"
August	69°F	91°F	79°F	3.6"
September	61°F	84°F	72°F	4.3"
October	48°F	72°F	60°F	3.4"
November	37°F	60°F	48°F	3.4"
December	27°F	47°F	37°F	3.5"

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St. Ann 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	St. Ann	Missouri	National
Air quality index	54	97	42
Pollution index	8,870,230	1,630,255	2,726,193

St. Ann air quality

Measurement	Total
Days measured	365
Days with good air quality	134
Days with moderate air quality	221
Days w/ poor A.Q. for sensitive groups	8
Days with unhealthy air quality	2

Air quality details

Pollutant	Total
Arsenic	0.180%
Benzene	0.060%
Carbon Tetrachloride	0.020%
Lead	0.030%
Mercury	0.120%

Average monthly St. Ann temperature with heat index

St. Ann monthly precipitation with daily maximum

St. Ann monthly snow depth with daily maximum

St. Ann monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Florissant, MO	51,220	54	8.0%
Portage Des Sioux, MO	305	54	8.0%
Concord, MO	18,521	54	8.0%
Frontenac, MO	3,538	54	8.0%
Lemay, MO	16,565	54	8.0%
St. Ann, MO	12,689	54	8.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Crowley, LA	12,689	41	18.0%
Echelon, NJ	12,687	51	2.0%
Endicott, NY	12,684	36	28.0%
Meadville, PA	12,684	36	28.0%
Fulton, MO	12,696	38	24.0%
St. Ann, MO	12,689	54	8.0%

Source: The St. Ann, MO 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.