TODAY DEC17
TEMPERATURE31
HUMIDITY89
PRESSURE30.22
WIND COND.280 11.4
  • 3623Mon
  • 3929Tue
  • 3829Wed20%30%
  • 3422Thu
  • 3020Fri
daynightWeather update from Mason City, Mason City Municipal Airport at

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Rock Falls Average Temperature

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
January9°F25°F17°F0.7"
February11°F29°F20°F1.1"
March25°F44°F34°F2.2"
April36°F60°F47°F5.1"
May48°F71°F59°F5.0"
June58°F81°F69°F5.4"
July61°F84°F72°F4.2"
August59°F82°F70°F4.0"
September51°F76°F62°F4.3"
October38°F62°F49°F2.7"
November26°F47°F36°F1.5"
December13°F29°F21°F1.4"

Did you know?

  • The highest monthly average temperature in Rock Falls for July is 72 degrees.
  • The lowest monthly average temperature in Rock Falls for January is 17 degrees.
  • The most monthly precipitation in Rock Falls occurs in June with 5.4 inches.
  • The air quality index in Rock Falls is 63% better than the national average.
  • The pollution index in Rock Falls is 79% better than the national average.

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Compare Rock Falls, IA Weather To Other Cities

Rock Falls 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.
IndexRock FallsIowaNational
Air quality index183950
Pollution index1,013,9601,643,8365,066,862

Rock Falls air quality information

MeasurementTotal
Days measured334
Days with good air quality332
Days with moderate air quality2
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Rock Falls air quality information

PollutantTotal
Arsenic0.000%
Benzene0.010%
Carbon Tetrachloride0.001%
Lead0.001%
Mercury0.000%

Average monthly Rock Falls temperature with heat index

Rock Falls monthly precipitation with daily maximum

Rock Falls monthly snow depth with daily maximum

Rock Falls monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Bolan, IA401864%
Grafton, IA3551864%
Mason City, IA27,5461864%
Plymouth, IA3441864%
Rudd, IA3661864%
Rock Falls, IA1501864%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Loma Mar, CA1503628%
Callensburg, PA1503628%
Low Moor, VA1503628%
Pierpont, SD1502648%
Alexander, IA1501864%
Rock Falls, IA1501864%
Source: The Rock Falls, 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.