May 2013 Was Another Wet and Cool Month

With the calendar turning to June, we thought it would be a good chance to review the month of May at our office in Negaunee Township.

May

Value

Departure From Normal

Rank

Average High

59.2

-2.6

18th Coolest

Average Low

38.0

-1.9

21st Coolest

Average Temperature

48.6

-2.3

21st Coolest

Precipitaiton

3.74"

+0.69

13th Wettest

Snowfall

4.5"

+3.0

6th Snowiest

Cool and Wet has been the trend

With another month of below normal temperatures and above normal precipitation, there are a couple interesting things that have occurred. First, this May was the 4th month in a row (February through May) where the average temperature was below normal. The last time that occurred was from April through August 2009 (5 months in a row).  In addition to the temperatures, May 2013 marked the 6th month in a row where we received above normal precipitation (December 2012 through May 2013). You have to go over 10 years into the past where we have seen 6 months or more in a row with above normal precipitation.  The last time that happened was February 2002 through October 2002 (9 months in a row).

Year-To-Date

As for the first 5 months of 2013, it is a remarkable difference from 2012. This year has almost been the complete opposite, which can be seen in the table below.

Year-to-Date Summary (through May 31st)

2013

2013 Rank

Normal

2012

2012 Rank

Average High Temperature

35.2

6th Coolest

38.6

45.2

Warmest

Average Low Temperature

18.1

24th Coolest

18.6

25.7

Warmest

Average Temperature

26.6

17th Coolest

28.6

35.4

Warmest

Total Precipitation

17.34"

7th Wettest

13.64

11.69

 22nd Driest

Note: Weather records for the Marquette National Weather Service office in Negaunee Township date back to 1961.  Data for the month of May is preliminary.



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