Grafton, WI Climate


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United States / Wisconsin / Milwaukee-Waukesha Metro Area / Ozaukee County / Grafton / Zip Codes
Grafton village, WI has a humid continental climate with cold winters and warm to hot summers. Winters in Grafton village are very cold, with temperatures ranging from 20 degrees Fahrenheit to the low single digits. Snowfall is common throughout the winter months. Summers in Grafton village are usually mild but can become extremely hot when temperatures reach the mid-90s Fahrenheit or higher. Precipitation is fairly evenly distributed throughout the year, though spring and early summer tend to be slightly wetter than other times of year.

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Grafton village is 6.7 (10=best), which means it is one of the most pleasant places in Wisconsin.

9.2 Summer - 4.3 Winter
August, July and June are the most pleasant months in Grafton village, while January and December are the least comfortable months.

  ClimateGrafton, WisconsinUnited States
  33.7 in.38.1 in.
  44.4 in.27.8 in.
  104.3 days106.2 days
  190 days205 days
  80.5°85.8°
  12.1°21.7°
  6.77
  3.44.3
  758 ft.2443 ft.
Climate
YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

July is the hottest month for Grafton village with an average high temperature of 80.5°, which ranks it as cooler than most places in Wisconsin. In Grafton village, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Grafton village are August, June and July.
In Grafton village, there are 6.9 days annually when the high temperature is over 90°, which is hotter than most places in Wisconsin.
January has the coldest nighttime temperatures for Grafton village with an average of 12.1°. This is one of the warmest places in Wisconsin.
In Grafton village, there are 149.7 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Wisconsin.
In Grafton village, there are 12.6 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Wisconsin.
The humidity is usually comfortable in Grafton village but some summer months can be sticky or muggy. July is the most humid month, though humidity is low for most of the year. The most humid months are July, August and June.
July is the wettest month in Grafton village with 4.1 inches of rain, and the driest month is February with 1.4 inches. The wettest season is Autumn with 36% of yearly precipitation and 14% occurs in Spring, which is the driest season. The annual rainfall of 33.7 inches in Grafton village means that it is about average compared to other places in Wisconsin.
May is the rainiest month in Grafton village with 9.9 days of rain, and February is the driest month with only 6.2 rainy days. There are 104.3 rainy days annually in Grafton village, which is less rainy than most places in Wisconsin. The rainiest season is Autumn when it rains 27% of the time and the driest is Spring with only a 21% chance of a rainy day.
An annual snowfall of 44.4 inches in Grafton village means that it is about average compared to other places in Wisconsin. January is the snowiest month in Grafton village with 12.9 inches of snow, and 6 months of the year have significant snowfall.
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john · Grafton, WI
weather near the lake
Over 8 years ago

Very nice small town community, but weather is awful near Lake  More

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Wes · Grafton, WI
Summers in Grafton
Over 12 years ago

Located just North of Milwaukee. Lots do to do in the  More

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Darrell · Grafton, WI
Great Place to Live
Over 14 years ago

With recent national rankings of Ozaukee County as being the second best place to raise a family in the America and being the healthiest county in Wisconsin, you soon  More

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