Mid-April Heavy Rainfall Statistics - Peoria 5th Wettest April

An extended period of active spring weather has brought well above normal rainfall to all of central and southeast Illinois since April 10th.  Several weather systems have impacted the area, with the most significant heavy rain producers on April 10 and April 17-18.  Most of the area has picked up 3-7" of rainfall during this ten day period, with around 1.30" being a normal amount of rain for that ten day period in mid-April.  This means that some locations have picked up over 5 times normal rainfall!  The table below lists specific amounts for area cities during this stretch of wet weather.

City

April 10-19 Rainfall Normal % of Normal
Charleston  6.07"  1.27"  478
Danville  5.47"  1.34"  408
Decatur  5.79"  1.30"  445
Effingham  4.96"  1.30"  381
Galesburg  6.65"  1.32"  503
Jacksonville  4.61"  1.43"  322
Lincoln  4.47"  1.27"  352
Normal  3.73"  1.35"  276
Peoria  6.59"  1.24"  531
Robinson  2.68"  1.45"  185
Springfield  4.18"  1.26"  332
Urbana  6.03"  1.28"  471

 
Maps below from the Midwestern Regional Climate Center show a regional and local perspective of the heavy rain amounts (click images to enlarge).

Accumulated Rainfall Across the Midwest April 10-19 % of Normal Rainfall Across the Midwest April 10-19

Accumulated Rainfall Across Central & Southeast IL April 10-19 % of Normal Rainfall Across Central & Southeast IL April 10-19

Peoria, IL so far has received 7.67 inches of rain so far this month from April 1-24.  This is the 5th wettest April on record and only about an inch away from the wettest April in 1947. Peoria normally receives 3.63 inches of precipitation during April. Below are the top 10 wettest Aprils in Peoria...

...Peoria Wettest Aprils...

#1   8.66 inches in 1947
#2   8.49 inches in 1950
#3   8.32 inches in 1944
#4   7.86 inches in 1893
#5   7.67 inches in 2013 *
#6   7.18 inches in 1970
#7   7.17 inches in 1909
#8   7.06 inches in 1983
#9   6.92 inches in 1964
#10 6.88 inches in 1912

Soils are not able to absorb such amounts of water, and this has led to runoff and significant rises on area streams and rivers.  Major to record flooding is occurring or forecast for many rivers in central and northern Illinois for the next several days.  Keep updated on river flooding through our Advanced Hydrologic Prediction Service (AHPS) webpage. 

 



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