This report describes the typical weather at the Monroe Municipal Airport (Monroe, Wisconsin, United States) weather station over the course of an average year. It is based on the historical records from 2001 to 2012. Earlier records are either unavailable or unreliable.
Monroe, Wisconsin has a humid continental climate with hot summers and no dry season. The area within 25 mi of this station is covered by grasslands (85%) and croplands (13%).
Over the course of a year, the temperature typically varies from 12Â°F to 82Â°F and is rarely below -2Â°F or above 88Â°F.
The warm season lasts from May 22 to September 21 with an average daily high temperature above 71Â°F. The hottest day of the year is July 25, with an average high of 82Â°F and low of 64Â°F.
The cold season lasts from November 30 to March 4 with an average daily high temperature below 37Â°F. The coldest day of the year is January 25, with an average low of 12Â°F and high of 26Â°F.
The length of the day varies significantly over the course of the year. The shortest day is December 21 with 9:03 hours of daylight; the longest day is June 20 with 15:20 hours of daylight.
The earliest sunrise is at 5:20am on June 17 and the latest sunset is at 8:41pm on June 23. The latest sunrise is at 7:35am on November 3 and the earliest sunset is at 4:24pm on December 10.
Daylight savings time (DST) is observed in this location during 2012, starting in the spring on March 11 and ending in the fall on November 4.
The median cloud cover ranges from 21% (mostly clear) to 69% (partly cloudy). The sky is cloudiest on December 15 and clearest on August 22. The clearer part of the year begins around April 8. The cloudier part of the year begins around October 30.
On August 22, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 69% of the time, and overcast or mostly cloudy 29% of the time.
On December 15, the cloudiest day of the year, the sky is overcast, mostly cloudy, or partly cloudy 57% of the time, and clear or mostly clear 39% of the time.
The probability that precipitation will be observed at this location varies throughout the year. Precipitation is most likely around December 23, occurring in 49% of days. Precipitation is least likely around August 18, occurring in 33% of days.
Over the entire year, the most common forms of precipitation are moderate rain, light snow, heavy rain, and light rain.
Moderate rain is the most severe precipitation observed during 28% of those days with precipitation. It is most likely around October 19, when it is observed during 19% of all days.
Light snow is the most severe precipitation observed during 24% of those days with precipitation. It is most likely around January 4, when it is observed during 31% of all days.
Heavy rain is the most severe precipitation observed during 15% of those days with precipitation. It is most likely around July 30, when it is observed during 12% of all days.
Light rain is the most severe precipitation observed during 15% of those days with precipitation. It is most likely around June 14, when it is observed during 14% of all days.
During the warm season, which lasts from May 22 to September 21, there is a 38% average chance that precipitation will be observed at some point during a given day. When precipitation does occur it is most often in the form of moderate rain (32% of days with precipitation have at worst moderate rain), heavy rain (28%), light rain (27%), and thunderstorms (11%).
During the cold season, which lasts from November 30 to March 4, there is a 45% average chance that precipitation will be observed at some point during a given day. When precipitation does occur it is most often in the form of light snow (58% of days with precipitation have at worst light snow), moderate snow (22%), and moderate rain (12%).
The likelihood of snow falling is highest around January 4, occurring in 42% of days. The season in which it is relatively likely for snow to fall spans from November 9 to April 2.
Either snow rarely accumulates at this location or snow depth measurements are unavailable or unreliable.
The relative humidity typically ranges from 41% (comfortable) to 96% (very humid) over the course of the year, rarely dropping below 24% (dry) and reaching as high as 100% (very humid).
The air is driest around April 19, at which time the relative humidity drops below 50% (comfortable) three days out of four; it is most humid around July 30, exceeding 94% (very humid) three days out of four.
Dew point is often a better measure of how comfortable a person will find the weather than relative humidity because it more directly relates to whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid.
Over the course of a year, the dew point typically varies from 8Â°F (dry) to 69Â°F (muggy) and is rarely below -10Â°F (dry) or above 76Â°F (very muggy).
There are two periods in the year that are most comfortable: The first is between May 9 and June 28 and the second is between August 26 and October 6. The air feels neither too dry nor too muggy during these periods.
Over the course of the year typical wind speeds vary from 0 mph to 17 mph (calm to moderate breeze), rarely exceeding 24 mph (fresh breeze).
The highest average wind speed of 10 mph (gentle breeze) occurs around April 9, at which time the average daily maximum wind speed is 16 mph (moderate breeze).
The lowest average wind speed of 5 mph (light breeze) occurs around July 29, at which time the average daily maximum wind speed is 10 mph (gentle breeze).