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Weather Vault: May 2012

Here's a look at the weather headlines of May 2012. 

Posted:  9:00 AM 6/1/12
Updated:  6:01 PM 6/19/12

May got of to an active and warm start.  May 1st brought 4 tornadoes to Piatt, Champaign, and Vermilion Counties.  No one was hurt and damage was minimal.  The 1st through the 6th were very warm with highs in the middle to upper 80s and a few 90s!  Another round of severe weather affected areas north of I-74 on the 6th, causing some damage. 

The start of the second week was a little rainy, pushing parts of central Illinois 3/4 of an inch above normal to start the month.  This wasn't enough though to break the nearly 3 inch deficit in parts of central Illinois.  By Tuesday, the 8th, nice weather settled in to central Illinois and stuck around through the 18th.  The weekend of the 19th and 20th was a hot one with highs around 90 and humidity coming up, giving central Illinois their first taste of summer.  The heat was only broken up by a round of storms and much needed rainfall on the 20th, however, it was a highly variable rain evening leaving many places still dry.

The next week would start cool and cloudy on Monday, the 21st, but the sun returned on Tuesday.  Tuesday was a near-normal day with highs in the middle 70s.  The next warm-up started on Wednesday the 23rd as we got into the 80s and 90s returned for the 24th and stuck around through the Memorial Day Weekend. 

Below is a look at how May finished up for a few cities by the numbers. 

Statewide
Illinois had the 6th warmest May on record and the 23rd driest May on record.

Nationally

For the nation, the United States had the second warmest May on record with an average temperature of 64.3 degrees Fahrenheit, which is 3.3 degrees above normal.  The national average precipitation was 2.51", which is 0.36" below normal.  However, the numbers were very mixed across the nation, with the coastal Southeast recieving drought relief from Tropical Storm Beryl. 

You can get more on the National State Of The Climate in this report


Globally
The global temperatures for the month of May were the 2nd highest on record.  You can see where the warm spots were in this graphic.  Most areas of the world experienced much warmer-than-average monthly temperatures, including nearly all of Europe, Asia, northern Africa, most of North America and southern Greenland.  Only Australia, Alaska and parts of the western U.S.-Canadian border region were notably cooler than average.

 

Maximum Temperatures

 

Normal

May 2012

Champaign-Urbana

73.4

80.8

Danville

74.7

82.4

Decatur

75.9

79.3

Effingham

Not Listed

81.2

Springfield

74.8

81.2


 

Minimum Temperatures

 

Normal

May 2012

Champaign-Urbana

51.6

56.0

Danville

51.5

55.5

Decatur

52.5

57.1

Effingham

Not Listed

55.5

Springfield

52.6

57.8


 

Average Temperatures

 

Normal

May 2012

Champaign-Urbana

62.5

68.4

Danville

63.1

68.9

Decatur

64.2

68.2

Effingham

Not Listed

68.3

Springfield

63.7

69.5


 

Precipitation

 

Normal

May 2012

Champaign-Urbana

4.89"

3.11"

Danville

4.74"

2.28"

Decatur

4.79"

1.90"

Effingham

Not Listed

2.81"

Springfield

4.24"

4.28"




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