TODAY NOV19
TEMPERATURE33
HUMIDITY88
PRESSURE30.18
WIND COND.30 3.4
  • 4025Mon
  • 3527Tue
  • 4730Wed
  • 4935
  • 4940Fri
daynightWeather update from Springfield - Abraham Lincoln Capital Airport at

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Rochester 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
January20°F38°F29°F2.1"
February22°F41°F31°F1.9"
March34°F56°F44°F2.9"
April44°F68°F56°F4.3"
May54°F77°F65°F4.5"
June64°F86°F74°F5.5"
July66°F88°F77°F4.3"
August64°F86°F75°F3.2"
September57°F81°F68°F3.7"
October46°F69°F56°F3.7"
November36°F55°F45°F2.5"
December26°F41°F33°F2.8"

Did you know?

  • The highest monthly average temperature in Rochester for July is 77 degrees.
  • The lowest monthly average temperature in Rochester for January is 29 degrees.
  • The most monthly precipitation in Rochester occurs in June with 5.5 inches.
  • The air quality index in Rochester is 29% better than the national average.
  • The pollution index in Rochester is 1% worse than the national average.

Real Estate Listings In Rochester

Compare Rochester, IL Weather To Other Cities

Rochester 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.
IndexRochesterIllinoisNational
Air quality index354150
Pollution index5,136,0803,347,2955,066,862

Rochester air quality information

MeasurementTotal
Days measured365
Days with good air quality316
Days with moderate air quality49
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Rochester air quality information

PollutantTotal
Arsenic0.010%
Benzene0.090%
Carbon Tetrachloride0.010%
Lead0.390%
Mercury0.020%

Average monthly Rochester temperature with heat index

Rochester monthly precipitation with daily maximum

Rochester monthly snow depth with daily maximum

Rochester monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Buffalo, IL5033530%
Clear Lake, IL2193530%
Divernon, IL1,2013530%
Jerome, IL1,6623530%
Mechanicsburg, IL6233530%
Rochester, IL3,6873530%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Harrisburg, OR3,6873628%
Independence, MN3,6874412%
Pantops, VA3,6883334%
Village Green, NY3,6883236%
Citrus City, TX3,6863628%
Rochester, IL3,6873530%
Source: The Rochester, IL 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.