TODAY JUN23
TEMPERATURE64
HUMIDITY56
PRESSURE29.83
WIND COND.50 11.4
  • 7257Sat
  • 7457Sun
  • 7262Mon20%
  • 7966Tue60%60%
  • 8266Wed50%
daynightWeather update from West Bend Municipal Airport at

Grafton Average Weather

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
January-13°F50°F21°Fn/a
February-13°F59°F22°Fn/a
March9°F80°F35°Fn/a
April21°F75°F43°Fn/a
May40°F84°F53°Fn/a
June42°F90°F63°Fn/a
July53°F96°F68°Fn/a
August49°F92°F68°Fn/a
September39°F87°F63°Fn/a
October28°F75°F50°Fn/a
November16°F71°F41°Fn/a
December-6°F52°F27°Fn/a

Did you know?

  • The highest monthly average temperature in Grafton for August is 68 degrees.
  • The lowest monthly average temperature in Grafton for January is 21 degrees.
  • The most monthly precipitation in Grafton occurs in January with 0 inches.
  • The air quality index in Grafton is 9% better than the national average.
  • The pollution index in Grafton is 37% better than the national average.

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Compare Grafton, WI Weather To Other Cities

Grafton 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.
IndexGraftonWisconsinNational
Air quality index456950
Pollution index3,171,0803,316,8775,066,862

Grafton air quality information

MeasurementTotal
Days measured365
Days with good air quality211
Days with moderate air quality154
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Grafton air quality information

PollutantTotal
Arsenic0.010%
Benzene0.020%
Carbon Tetrachloride0.003%
Lead0.010%
Mercury0.100%

Average monthly Grafton temperature with heat index

Grafton monthly precipitation with daily maximum

Grafton monthly snow depth with daily maximum

Grafton monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Kewaskum, WI4,0723628%
Belgium, WI2,2453922%
Waubeka, WI7263922%
Fredonia, WI2,1083922%
Bayside, WI4,4284510%
Grafton, WI11,5634510%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
St. Peter, MN11,5674412%
Lovington, NM11,5593628%
Waipio, HI11,5543040%
Woodinville, WA11,549492%
East Renton Highlands, WA11,549492%
Grafton, WI11,5634510%
Source: The Grafton, WI 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.