Decatur, AL Weather - Forecast & Monthly Averages

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TEMPERATURE	81
HUMIDITY	32
PRESSURE	101286.88
WIND COND.	200 22.2

Weather Quick Facts

The highest monthly average temperature in Decatur for August is 81.8 degrees
The lowest monthly average temperature in Decatur for December is 43.9 degrees
The most monthly precipitation in Decatur occurs in January with 8.1 inches
The air quality index in Decatur is 3% better than the national average
The pollution index in Decatur is 155% worse than the national average

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Decatur 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	37°F	54°F	45°F	8.1"
February	35°F	55°F	44°F	5.4"
March	44°F	67°F	55°F	5.9"
April	49°F	72°F	59°F	7.1"
May	56°F	82°F	69°F	2.9"
June	66°F	89°F	77°F	4.9"
July	70°F	89°F	78°F	7.2"
August	72°F	94°F	82°F	5.2"
September	63°F	88°F	75°F	7.8"
October	51°F	76°F	63°F	3.6"
November	41°F	65°F	52°F	8.0"
December	35°F	55°F	44°F	5.0"

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Decatur 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	Decatur	Alabama	National
Air quality index	41	37	42
Pollution index	6,960,530	3,012,339	2,726,193

Decatur air quality

Measurement	Total
Days measured	365
Days with good air quality	306
Days with moderate air quality	59
Days w/ poor A.Q. for sensitive groups	0
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.010%
Benzene	0.100%
Carbon Tetrachloride	0.060%
Lead	0.030%
Mercury	0.010%

Average monthly Decatur temperature with heat index

Decatur monthly precipitation with daily maximum

Decatur monthly snow depth with daily maximum

Decatur monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Hartselle, AL	14,752	41	18.0%
Somerville, AL	667	41	18.0%
Mooresville, AL	89	41	18.0%
Hillsboro, AL	613	41	18.0%
Athens, AL	27,586	41	18.0%
Decatur, AL	55,434	41	18.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Novato, CA	55,468	40	20.0%
Pinellas Park, FL	55,392	43	14.0%
Belleville, ON	55,515	n/a
Kingsport, TN	55,254	45	10.0%
West Sacramento, CA	55,617	52	4.0%
Decatur, AL	55,434	41	18.0%

Source: The Decatur, AL 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.