CDUS43 KLOT 200641 CLIORD CLIMATE REPORT NATIONAL WEATHER SERVICE CHICAGO IL 141 AM CDT WED MAY 20 2026 ................................... ...THE CHICAGO-OHARE CLIMATE SUMMARY FOR MAY 19 2026... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1871 TO 2026 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 79 1:04 PM 94 1975 72 7 55 1977 MINIMUM 59 11:59 PM 36 1894 52 7 43 1993 AVERAGE 69 62 7 49 PRECIPITATION (IN) YESTERDAY T 1.53 1949 0.15 -0.15 0.00 MONTH TO DATE 0.73 2.81 -2.08 0.33 SINCE MAR 1 12.46 9.01 3.45 5.98 SINCE JAN 1 15.15 12.97 2.18 8.48 SNOWFALL (IN) YESTERDAY 0.0 0.0 MM 0.0 0.0 0.0 MONTH TO DATE 0.0 0.0 0.0 T SINCE MAR 1 1.8 6.8 -5.0 2.8 SINCE JUL 1 34.1 38.4 -4.3 17.6 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 0 6 -6 16 MONTH TO DATE 167 147 20 134 SINCE MAR 1 1162 1423 -261 1192 SINCE JUL 1 5522 5892 -370 5327 COOLING YESTERDAY 4 2 2 0 MONTH TO DATE 34 26 8 26 SINCE MAR 1 53 36 17 34 SINCE JAN 1 53 36 17 34 ................................................................... WIND (MPH) HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION W (250) HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION SW (240) AVERAGE WIND SPEED 13.6 SKY COVER AVERAGE SKY COVER 0.9 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. LIGHT RAIN RELATIVE HUMIDITY (PERCENT) HIGHEST 84 12:00 AM LOWEST 56 12:00 PM AVERAGE 70 .......................................................... THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 72 95 1977 MINIMUM TEMPERATURE (F) 52 33 2002 SUNRISE AND SUNSET MAY 20 2026...........SUNRISE 5:27 AM CDT SUNSET 8:10 PM CDT MAY 21 2026...........SUNRISE 5:26 AM CDT SUNSET 8:11 PM CDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$