CDUS43 KLOT 090641 CLIORD CLIMATE REPORT NATIONAL WEATHER SERVICE CHICAGO IL 141 AM CDT FRI MAY 09 2025 ................................... ...THE CHICAGO-OHARE CLIMATE SUMMARY FOR MAY 8 2025... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1871 TO 2025 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 58 1:55 PM 91 1963 68 -10 79 MINIMUM 41 11:42 PM 29 1983 48 -7 53 AVERAGE 50 58 -8 66 PRECIPITATION (IN) YESTERDAY 0.00 1.26 1880 0.15 -0.15 0.00 MONTH TO DATE 0.33 1.17 -0.84 1.80 SINCE MAR 1 5.98 7.37 -1.39 8.86 SINCE JAN 1 8.48 11.33 -2.85 13.01 SNOWFALL (IN) YESTERDAY 0.0 0.5 1923 0.0 0.0 0.0 MONTH TO DATE 0.0 0.0 0.0 0.0 SINCE MAR 1 2.8 6.8 -4.0 1.0 SINCE JUL 1 17.6 38.4 -20.8 22.2 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 15 8 7 0 MONTH TO DATE 79 73 6 19 SINCE MAR 1 1137 1349 -212 1032 SINCE JUL 1 5272 5818 -546 4720 COOLING YESTERDAY 0 1 -1 1 MONTH TO DATE 0 8 -8 8 SINCE MAR 1 8 18 -10 17 SINCE JAN 1 8 18 -10 17 ................................................................... WIND (MPH) HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION NE (40) HIGHEST GUST SPEED 38 HIGHEST GUST DIRECTION NE (50) AVERAGE WIND SPEED 17.1 SKY COVER AVERAGE SKY COVER 0.5 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 76 4:00 AM LOWEST 47 7:00 PM AVERAGE 62 .......................................................... THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 68 94 1934 MINIMUM TEMPERATURE (F) 48 27 1983 SUNRISE AND SUNSET MAY 92025...........SUNRISE 5:37 AM CDT SUNSET 7:59 PM CDT MAY 10 2025...........SUNRISE 5:36 AM CDT SUNSET 8:00 PM CDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$