Letts, IA Weather Forecast & Monthly Average Temperatures

TEMPERATURE
HUMIDITY
PRESSURE
WIND COND.

Letts Average Weather

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	15°F	32°F	23°F	1.0"
February	17°F	35°F	25°F	1.1"
March	30°F	51°F	39°F	2.4"
April	41°F	64°F	52°F	4.8"
May	51°F	74°F	62°F	4.6"
June	62°F	84°F	73°F	6.1"
July	66°F	86°F	75°F	4.7"
August	64°F	84°F	73°F	4.5"
September	55°F	78°F	66°F	3.3"
October	43°F	65°F	53°F	3.3"
November	31°F	51°F	40°F	1.9"
December	19°F	35°F	27°F	1.9"

Did you know?

The highest monthly average temperature in Letts for July is 75 degrees.
The lowest monthly average temperature in Letts for January is 23 degrees.
The most monthly precipitation in Letts occurs in June with 6.1 inches.
The air quality index in Letts is 12% worse than the national average.
The pollution index in Letts is 80% better than the national average.

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Letts 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	Letts	Iowa	National
Air quality index	56	39	50
Pollution index	975,807	1,643,836	5,066,862

Letts air quality information

Measurement	Total
Days measured	365
Days with good air quality	139
Days with moderate air quality	170
Days w/ poor A.Q. for sensitive groups	52
Days with unhealthy air quality	4

Letts air quality information

Pollutant	Total
Arsenic	0.150%
Benzene	0.010%
Carbon Tetrachloride	0.001%
Lead	0.040%
Mercury	0.150%

Average monthly Letts temperature with heat index

Letts monthly precipitation with daily maximum

Letts monthly snow depth with daily maximum

Letts monthly wind speed information

Nearby cities with good air quality

City, State	Population	Air Quality Index	National Avg.
Lone Tree, IA	1,482	42	16%
Wapello, IA	1,922	56	12%
Conesville, IA	617	56	12%
Grandview, IA	449	56	12%
Winfield, IA	1,068	56	12%
Letts, IA	410	56	12%

Cities with similar population

City, State	Population	Air Quality Index	National Avg.
Soudan, MN	410	37	26%
Hanley Falls, MN	410	35	30%
Menlo, IA	410	41	18%
Fanshawe, OK	410	35	30%
Kingsland, AR	410	31	38%
Letts, IA	410	56	12%

Source: The Letts, IA 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.