Eye On Weather

71°F
Sponsored by

Weather Vault: April 2013

Here's a look at a summary of the weather event of April 2013.
Posted:  6:00 AM 4/1/13
Updated:  5:57 PM 4/16/13

The first week of April was a quiet and cool one.  High temperatures the first two days (a Monday and Tuesday) were in the 40s.  Both days had plenty of sunshine though.  More sunshine snuck into Wednesday, the 3rd, and highs jumped to around 50.  Thursday and Friday were also quiet, but even warmer and into the upper 50s. 

Our first weekend started off with a very windy Saturday.  We felt gusts of up to 40 mph across central Illinois with sustained winds around 30 mph.  The winds were from the south and brought temperatrures up into the middle 70s.  We repeated the warm weather on Sunday with both days having plenty of sunshine.  Both nights had a few showers, but nothing too heavy or strong. 

Monday was a cloudy, but warm day.  Highs were in the middle to upper 70s for Monday the 8th.  We kept the warm air around into Tuesday and Wednesday.  Tuesday had a few showers with mostly to partly cloudy skies.  Wednesday central Illinois got their first taste of Spring severe weather.  Throughout the day there were many severe thunderstorm and even one tornado warning, but no damage was reported.  The big story was heavy rainfall that brought 1 to 3 inches of rain to the area

We went back to the calmer weather for Thursday and Friday with overcast skies and highs in the 50s.  We also had plenty of clouds both days and some spotty areas for rain.  Saturday, the 13th was a bit less cloudy, but still cool.  In fact, we were down to near the freezing point on Saturday morning, causing some patch frost. Sunday was a sunny, warm, but breezy day with highs in the lower to middle 70s. 

The following week had more of the rain and cloud cover as another stationary front started to hang around.  We had plenty of clouds on Monday with highs in the middle to upper 60s. Monday night saw a large area of thunderstorms and several severe t-storm warnings. Only a few areas in Sangamon County reported damage, but the storms woke many people up in the early hours of Tuesday. 

Tuesday, the 16th, was a bit of a cooler day with highs around 50s, which shut the storms off briefly.  The front was well to the south at this point.  The northern surge that followed on Wednesday brought another chance of severe weather. Despite a tornado watch and a few warnings, we generally dodged severe weather. The 18th, Thursday, was a moderate risk day with thunderstorms, but the storms rolled in early and the severe threat was limited.  However, the flooding was not limited and many areas had flash flooding that even closed many roads and locked down cities

Friday was a calmer day, but issues with flooding remained.  The other issue was on Saturday morning when a late season frost and freeze arrive.  Thankfully, by the end of the day we were bak in the lower 50s and Sunday saw the lower 60s, but it was a breezy day. Things got even nicer for Monday as we pushed 70 degrees with plenty of sunshine and a light southerly breeze. 

Tuesday, the rain was back, but it wasn't very heavy through the day.  High temperatures struggled into the upper 50s and lower 60s before a cold front arrived.  Wednesday was a cooler day with clearing skies and highs in the lower 50s, however it started with a few flurries. Thursday the 25th was a sunny day, but the clear skies led to a chilly start on Friday. 

The weekend of the 27th and 28th was one that watched for Rain.  Luckily, the rain held off until after the Illinois Marathon, but light rain made both Saturday evening and most of Sunday damp.  Because the bulk of the rain missed the area, we avoided record breaking rainfall for the month.   The last to days of April were much warmer with 70s on Monday and 80s on Tuesday.

Statewide Summary
April 2013 was the 4th wettest on record for Illinois with 6.90", which is nearly double the normal 3.77". To put this in perspective, that is more than the total for May, June, and July of last year, by an inch. Augusta had the most rainfall at 12.28" and Naperville was close behind at 11.03". This lead to widespread flooding for the Illinois and Wabash rivers. Some of the crests were record breaking. 

Temperature wise, we were at 50.1 degrees, just 2.3 degrees below average.

National Summary 
April finished with an average temperature of 49.7 degrees F, 1.4 degrees below the average.  This made April 2013 the 23rd coolest month on record for the U.S. and the coolest since 1997.  Most of the cooler temperatures were noted in the central U.S., while the U.S. East Coast were near or above average and California had its 12th warmest April on record. 

The U.S. finished April with an average precipitation of 2.90 inches, 0.47 inches above normal.  This tied for the 19th wettest April on record.  The Midwest was especially wetter than normal with Iowa and Michigan having their wettest Aprils on record.  This added to our record flooding along the Illinois River and the flooding along the Wabash.  The southwest and northwest both had below normal precipitation.  Despite the wet month, the Drought Monitor showed 46.9% of the contiguous had moderate to exceptional drought, which was down from the 51.9% at the beginning of the month. 

Be sure to check out this map to see the climate highlights and you can read the whole report by clicking here

Global Summary 
Temperatures for the globe were the 13th warmest on record, 0.94 degrees F above normal at 57.64.  So far this year, we're tied with 2009 as the 8th warmest on record. 



Local Numbers 

 

Maximum Temperatures

 

Normal

April 2013

Champaign-Urbana

62.8

60.8

Danville

64.8

63.0

Decatur

66.0

61.2

Effingham

Not Listed

63.0

Springfield

64.6

62.0


 

Minimum Temperatures

 

Normal

April 2013

Champaign-Urbana

41.1

39.6

Danville

42.1

40.4

Decatur

40.8

42.9

Effingham

Not Listed

40.9

Springfield

42.4

40.9


 

Average Temperatures

 

Normal

April 2013

Champaign-Urbana

52.0

50.2

Danville

53.5

51.7

Decatur

54.5

51.0

Effingham

Not Listed

52.0

Springfield

53.5

51.4


 

Precipitation

 

Normal

April 2013

Champaign-Urbana

3.68"

7.05"

Danville

3.98"

7.16"

Decatur

3.67"

6.74"

Effingham

Not Listed

8.11"

Springfield

3.51"

5.07"

Page: [[$index + 1]]
comments powered by Disqus

Do You Have a News Tip?


If you have any story ideas or a news tip,  let our news desk know.