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CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1247 AM CST FRI DEC 11 2020
...................................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR DECEMBER 10 2020...
CLIMATE NORMAL PERIOD: 1981 TO 2010
CLIMATE RECORD PERIOD: 1871 TO 2020
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 57 3:41 PM 62 1879 36 21 24
MINIMUM 31 5:17 AM -8 1919 22 9 14
1978
AVERAGE 44 29 15 19
PRECIPITATION (IN)
YESTERDAY 0.00 2.18 1971 0.08 -0.08 T
MONTH TO DATE T 0.88 -0.88 0.16
SINCE DEC 1 T 0.88 -0.88 0.16
SINCE JAN 1 36.67 35.52 1.15 48.15
SNOWFALL (IN)
YESTERDAY 0.0 10.9 1934 0.3 -0.3 T
MONTH TO DATE T 2.2 -2.2 0.1
SINCE DEC 1 T 2.2 -2.2 0.1
SINCE JUL 1 0.7 3.6 -2.9 8.4
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 21 36 -15 46
MONTH TO DATE 279 342 -63 312
SINCE DEC 1 279 342 -63 312
SINCE JUL 1 1278 1598 -320 1665
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 1295 843 452 960
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 4.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 85 8:00 AM
LOWEST 45 3:00 PM
AVERAGE 65
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 36 61 1949
MINIMUM TEMPERATURE (F) 22 -5 1972
SUNRISE AND SUNSET
DECEMBER 11 2020......SUNRISE 7:10 AM CST SUNSET 4:20 PM CST
DECEMBER 12 2020......SUNRISE 7:11 AM CST SUNSET 4:20 PM CST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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WEATHER ARCHIVE
CARDINAL NEWS (O’Hare Weather Data)
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▶ This CARDINAL NEWS article features video(s) available on Twitter. You may need to touch the play button twice, or touch and hold the play button and select ‘Open’ from a popup menu. ▶
Two years ago today, the crescent moon was between the uprights of Sears Tower in Chicago. #weather #chicago pic.twitter.com/HB6AZomqKA
— Barry Butler (@barrybutler9) December 11, 2020
Yesterday morning, I was fortunate to chat with legendary Chicago broadcaster @BobSirott …who also has some history with photography. Take a listen, it’s about 6-minutes in length. @WGNRadio https://t.co/a478b9n0EB
— Barry Butler (@barrybutler9) December 10, 2020
Reflecting during Holiday Time in Chicago. #christmas #chicago pic.twitter.com/RwB16E8w19
— Barry Butler (@barrybutler9) December 10, 2020
December morning, Chicago. #weather #news #ilwx #chicago pic.twitter.com/IPZVzjVdgS
— Barry Butler (@barrybutler9) December 10, 2020
Evening update:
• Rain Fri afternoon, mainly west & north of I-55
• Rain, at times heavy, Fri night-Sat with 1.5+" favored north of I-80
• Ponding on roads possible Sat
• Potential for snow Sat mainly north of I-80, could accumulate especially far northern IL #ILwx #INwx pic.twitter.com/qejVF1C1UF
— NWS Chicago (@NWSChicago) December 11, 2020
How about that mild air today? 🌡️
The 57° observed at Rockford tied a daily record with 1911 & 2015 and was the warmest December temperature since…Christmas Day of last year. 🙂
Friday will be 10° to 15° cooler than today.
List of highs: https://t.co/blHgQmh8sz#ILwx #INwx pic.twitter.com/ZuN3N94Whb
— NWS Chicago (@NWSChicago) December 11, 2020
Potential exists for rain to change to accumulating wet snow on Saturday, especially in orange & red shaded zones on map (far northern IL into southern WI). Temps are big wild card & will determine if little/no snow occurs or if a few to even several inches fall in spots. #ilwx pic.twitter.com/mmQ6ljUtGg
— NWS Chicago (@NWSChicago) December 10, 2020
Residents living along/near #LakeMichigan shore should take appropriate action to protect property from rising water levels this weekend. Lakeshore Flood Watch in effect for the Illinois shoreline & Lake Co. IN shoreline. Stay tuned for updates! #ilwx #inwx pic.twitter.com/pqW6JiaVGN
— NWS Chicago (@NWSChicago) December 10, 2020
A weather system will move in Fri & bring precip to the area. Most will see rain, but wintry precip in the form of snow or a rain/snow mix will develop over north-central IL Fri night & last into Sat before the system moves out Sat night. Some snowfall accums possible NW. pic.twitter.com/IWSsQopQeD
— NWS Chicago (@NWSChicago) December 10, 2020
Chicago recorded a trace of precip on 12/6, but if it were to stay dry today, this December would become only the third December on record where Chicago didn't get measurable precip over the first 10 days of the month, joining the Decembers of 1888 and 1930 with that distinction
— NWS Chicago (@NWSChicago) December 10, 2020
Pleasant mid-December weather again today with highs in the 50s. Precip returns on Friday. Most will see rain, but snow or a rain/snow mix should occur over parts of far northern Illinois Fri night into Sat. Some snowfall accumulations possible, especially farther NW. #ilwx #inwx pic.twitter.com/bUlFIU8zKC
— NWS Chicago (@NWSChicago) December 10, 2020
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