TODAY OCT20
TEMPERATURE43
HUMIDITY70
PRESSURE30.12
WIND COND.280 8.1
  • 4731Sat
  • 6437Sun
  • 5933Mon
  • 5335Tue
  • 5339Wed30%
daynightWeather update from Orange City at
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Rock Valley 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
January8°F29°F18°F0.6"
February10°F34°F21°F0.9"
March24°F48°F35°F1.3"
April35°F62°F48°F3.0"
May45°F73°F59°F3.9"
June57°F82°F70°F5.2"
July61°F87°F75°F3.2"
August59°F84°F71°F4.4"
September51°F78°F64°F3.2"
October38°F64°F50°F3.1"
November24°F49°F36°F1.0"
December11°F32°F21°F1.4"

Did you know?

  • The highest monthly average temperature in Rock Valley for July is 75 degrees.
  • The lowest monthly average temperature in Rock Valley for January is 18 degrees.
  • The most monthly precipitation in Rock Valley occurs in June with 5.2 inches.
  • The air quality index in Rock Valley is 19% better than the national average.
  • The pollution index in Rock Valley is 85% better than the national average.

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Rock Valley 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 ValleyIowaNational
Air quality index403950
Pollution index731,1451,643,8365,066,862

Rock Valley air quality information

MeasurementTotal
Days measured365
Days with good air quality280
Days with moderate air quality85
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Rock Valley air quality information

PollutantTotal
Arsenic0.000%
Benzene0.010%
Carbon Tetrachloride0.002%
Lead0.002%
Mercury0.000%

Average monthly Rock Valley temperature with heat index

Rock Valley monthly precipitation with daily maximum

Rock Valley monthly snow depth with daily maximum

Rock Valley monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
George, IA1,0074020%
Hudson, SD2974020%
Alvord, IA2364020%
Boyden, IA7944020%
Hull, IA2,1464020%
Rock Valley, IA3,6234020%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Avenue B and C, AZ3,6234216%
Melody Hill, IN3,623484%
Uniontown, OH3,6243432%
Genesee, CO3,625548%
Stanley, WI3,621355610%
Rock Valley, IA3,6234020%
Source: The Rock Valley, 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.