CDUS43 KLOT 210727 CLIORD CLIMATE REPORT NATIONAL WEATHER SERVICE CHICAGO IL 227 AM CDT SAT MAR 21 2026 ................................... ...THE CHICAGO-OHARE CLIMATE SUMMARY FOR MARCH 20 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 72 1:42 PM 85 2012 49 23 44 MINIMUM 40 1:05 AM 4 1885 32 8 31 AVERAGE 56 40 16 38 PRECIPITATION (IN) YESTERDAY 0.00 0.96 1935 0.08 -0.08 0.22 MONTH TO DATE 4.24 1.54 2.70 2.58 SINCE MAR 1 4.24 1.54 2.70 2.58 SINCE JAN 1 6.93 5.50 1.43 5.08 SNOWFALL (IN) YESTERDAY 0.0 6.0 1964 0.2 -0.2 1.7 MONTH TO DATE 1.8 4.4 -2.6 2.8 SINCE MAR 1 1.8 4.4 -2.6 2.8 SINCE JUL 1 34.1 36.0 -1.9 17.6 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 9 25 -16 27 MONTH TO DATE 474 559 -85 440 SINCE MAR 1 474 559 -85 440 SINCE JUL 1 4834 5028 -194 4575 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE MAR 1 0 0 0 0 SINCE JAN 1 0 0 0 0 ................................................................... WIND (MPH) HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION NE (30) HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION N (20) AVERAGE WIND SPEED 9.8 SKY COVER AVERAGE SKY COVER 0.9 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 76 1:00 AM LOWEST 41 1:00 PM AVERAGE 59 .......................................................... THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 49 87 2012 MINIMUM TEMPERATURE (F) 33 9 1885 1888 SUNRISE AND SUNSET MARCH 21 2026.........SUNRISE 6:53 AM CDT SUNSET 7:05 PM CDT MARCH 22 2026.........SUNRISE 6:51 AM CDT SUNSET 7:06 PM CDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$