July 2020 Climate Summary

July 2020 Precipitation Highlights:

Wetter conditions returned to much of central and southeast IL from July 9th on through the end of the month, especially in southeast IL and over the IL river valley. Though the heart of central IL from Champaign westward through Lincoln to Petersburg, and over parts of Knox county had below normal precipitation. Lincoln was over 1 inch below normal for rainfall during the month. On the other hand, Peoria had 9.05 inches of rain in July, making it their 3rd wettest July on record. Peoria had 5.19 inches of rain on July 15th, making it their wettest July day on record and 2nd wettest day of all time. Clay City in Clay county had over 13 inches of rainfall during July! A stormier weather pattern took place from July 7-21st. A few severe wind reports occurred from July 7-9th. A more widespread severe weather event happened on Saturday afternoon and evening of July 11 along and northeast of I-74, including a 76 mph wind gust on south side of Morton. A few tornadoes occurred in central IL on Wednesday afternoon July 15th. A few more severe storms occurred on Sunday July 19th and Tuesday July 21st, including a tornado in Auburn on Tuesday afternoon July 21st. In addition to the severe storms, some thunderstorms produced very heavy rainfall of several inches which caused some flooding, including over a dozen water rescues in Roanoke on Wednesday July 15th where 5 to 7 inches of rain fell that afternoon and evening.

July 2020 Precipitation Departure from Normal

July 2020 Temperature Highlights:

July was another warm month with temperatures averaging 1 to 3 degrees above normal. Heat advisories were in effect during two consecutive weekends of July 18-19th and Sunday July 26th. Parts of southeast and west central IL had temperatures closer to normal due to more cloud cover and rainfall during the month.

July 2020 Average Temperature Central IL

July 2020 Average Temperature Departure from Normal

July 2020 Climate Data:

Site	Precipitation	Departure from Normal	Average Temperature	Departure from Normal
Charleston	6.30"	+1.83"	78.9	+2.7
Clay City	13.18"	+9.23"	N/A	N/A
Clinton	4.05"	-0.53"	N/A	N/A
Danville	5.74"	+1.07"	76.3	+1.2
Decatur	4.33"	+0.35"	77.3	+0.8
Effingham	9.15"	+4.97"	N/A	N/A
Flora	8.74"	+4.63"	79.1	+2.0
Galesburg	4.51"	+0.13"	76.3	+1.7
Havana	4.33"	+0.27"	N/A	N/A
Hoopeston	5.29"	+0.90"	76.3	+1.0
Jacksonville	5.85"	+1.90"	77.0	+2.2
Lacon	7.28"	+3.56"	N/A	N/A
Lawrenceville	8.71"	+4.40"	N/A	N/A
Lincoln	3.90"	-1.16"	76.4	+1.4
Mattoon	9.59"	+5.37"	N/A	N/A
Minonk	9.54"	+5.74"	77.3	+2.9
Mount Pulaski	2.62"	-1.82"	N/A	N/A
Normal	5.89"	+1.73"	76.4	+2.0
Olney	8.26"	+3.93"	77.7	+1.3
Paris	10.29"	+5.86"	75.2	-0.3
Peoria	9.05"	+5.20"	78.2	+2.7
Petersburg	3.80"	-0.61"	77.3	+2.0
Rantoul	7.91"	+3.20	76.0	N/A
Springfield	5.43"	+1.49"	77.7	+1.9
Sullivan	5.28"	+0.94	78.9	+3.9
Taylorville	6.36"	+2.63"	77.0	N/A
Tuscola	4.67"	-0.09"	77.2	+1.7
Urbana	4.73"	+0.03"	77.1	+2.2
Windsor	8.55"	+4.58	76.5	+0.6

The following links are the monthly and seasonal climate summaries for area cities. Only the summaries for Peoria, Springfield, and Lincoln are considered "official", meaning they are the station of record for their respective locations. The other summaries are "supplemental", meaning another location in the area is the official climate station for the city.

Peoria -- Peoria International Airport
Springfield -- Abraham Lincoln Capital Airport
Lincoln -- NWS Office
Champaign -- University of Illinois-Willard Airport
Decatur -- Decatur Airport
Lawrenceville -- Lawrenceville-Vincennes International Airport
Mattoon -- Coles County Memorial Airport

Climate data for other cities is available at http://w2.weather.gov/climate/xmacis.php?wfo=ilx

August Look Ahead:

Official outlooks from NOAA's Climate Predication center show below normal temperatures favored, and no predictable trends for rainfall.