Spring and May Wrap Up

This meteorological spring (March-May) began feeling more like winter. In fact the first day of the calendar spring was one of the top 10 coldest and March average temperatures ended up being about 6 to 8 degrees below normal. Not to mention that while Milwaukee got around its normal amount of snowfall, Madison saw twice its normal snowfall that month.

Below normal temperatures continued into April and the "April showers" commenced. Milwaukee ended up with the wettest April on record and Madison, the 5th wettest.

Though the wet trend continued into May, temperatures finally made a rebound to near, or slightly above normal. Temperatures this May averaged 0.5 degrees above normal in Milwaukee and 1.9 degrees above normal in Madison. Milwaukee received 4.30" of rainfall, making it the 28th wettest May, and Madison received 6.57", tying for the 8th wettest May.

The table below shows the top 10 wettest Mays in Milwaukee and Madison.

  Milwaukee     Madison  
Rank Rainfall Year Rank Rainfall Year
1  9.56"  1933 1 10.84" 2004
2  8.54"  1876 2 9.63" 2000
3  8.42"  2000 3 9.35" 1933
4  8.18"  2004 4 6.98" 1892
5  8.15"  1912   6.98" 1883
6  8.12"  1892 6 6.85" 1927
7  7.56"  1990 7 6.63" 1913
8  6.79"  1915 8 6.57" 2013
9  6.50"  1905   6.57" 1912
10  6.01"  1914 10 6.40" 1905

The maps below show from left to right, top to bottom: the average temperature this May, the departure from the normal average temperature, the total accumulated precipitation, and the percent of normal accumulated precipitation. Click each image for a larger version.

May 2013 Average Temperature May 2013 Average Temperature Departure From Normal
May 2013 Precipitation Total

May 2013 Precipitation Percent of Normal

After three months of above normal precipitation it isn't too suprising that this was the 8th wettest spring on record in Milwaukee, with 13.31", and the 4th wettest spring on record in Madison with, 14.81". Also, Milwaukee ended up coming in with an average temperature 2.2 degrees below normal, and Madison ended up with an average temperature 2.6 degrees below normal.

The maps below show from left to right, top to bottom: the average temperature this spring, the departure from the normal average temperature, the total accumulated precipitation, and the percent of normal accumulated precipitation. Click each image for a larger version.

May 2013 Average Temperature May 2013 Average Temperature Departure From Normal
May 2013 Precipitation Total

May 2013 Precipitation Percent of Normal

All of the precipitation that southern Wisconsin has received this year has actually made this the 4th wettest year-to-date in Milwaukee and 2nd wettest year-to-date in Madison. All in all, we've received 125 to 175% of our normal precipitation. Click the image below for a larger version.

A Top 5 Wettest Year To Date

Click below for the:

Milwaukee Monthly Climate Summary

Madison Monthly Climate Summary

Milwaukee Seasonal Climate Summary

Madison Seasonal Climate Summary

Maps courtesy of the Midwestern Regional Climate Center


Brooks

NWS Milwaukee/Sullivan



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