TODAY NOV12
TEMPERATURE9
HUMIDITY66
PRESSURE30.41
WIND COND.
  • 186Tue
  • 2418Wed20%80%
  • 3017Thu
  • 3320Fri
  • 3526Sat20%
daynightWeather update from Waukesha County Airport at
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Merton 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
January15°F28°F21°F0.6"
February15°F29°F22°F2.8"
March27°F43°F34°F2.9"
April37°F55°F45°F3.1"
May47°F67°F56°F8.9"
June56°F76°F66°F19.6"
July61°F80°F70°F14.9"
August60°F78°F69°F2.3"
September53°F72°F61°F10.4"
October42°F59°F50°F6.6"
November31°F46°F38°F3.6"
December20°F32°F26°F1.8"

Did you know?

  • The highest monthly average temperature in Merton for July is 70 degrees.
  • The lowest monthly average temperature in Merton for January is 21 degrees.
  • The most monthly precipitation in Merton occurs in June with 19.6 inches.
  • The air quality index in Merton is 10% better than the national average.
  • The pollution index in Merton is 60% better than the national average.

Compare Merton, WI Weather To Other Cities

Merton 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.
IndexMertonWisconsinNational
Air quality index456950
Pollution index2,032,3703,316,8775,066,862

Merton 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

Merton air quality information

PollutantTotal
Arsenic0.002%
Benzene0.030%
Carbon Tetrachloride0.001%
Lead0.000%
Mercury0.002%

Average monthly Merton temperature with heat index

Merton monthly precipitation with daily maximum

Merton monthly snow depth with daily maximum

Merton monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
North Prairie, WI2,3913628%
Dousman, WI2,4933628%
Chenequa, WI4803726%
Hustisford, WI9833726%
Okauchee Lake, WI4,3003726%
Merton, WI3,5354510%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Ranlo, NC3,5353628%
Hominy, OK3,535484%
Warsaw, NY3,5364118%
Bardonia, NY3,536536%
Marshall, IL3,53650= 100
Merton, WI3,5354510%
Source: The Merton, 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.
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