NWS CLI archive · settlement source
CLIORD · 시카고 · America/Chicago · ← 2026-09-19 · 2026-09-21 → · All dates for KORD · JSON · METAR-derived record
Final issued 2026-09-21 02:34:00 EDT · Product id iem:CDUS43-KLOT-210634:ORD:2026-09-20:final · IEM archive
Product id iem:CDUS43-KLOT-210634:ORD:2026-09-20:final · iem-afos · IEM archive
SHA-256 40a51fb2d40e7ab1c515f4c05df3c183eda18ad9cac0745bf8226d6c1b2458a3
Product text
CDUS43 KLOT 210634
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
134 AM CDT MON SEP 21 2026
...................................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR SEPTEMBER 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 69 1:58 AM 93 2018 74 -5 77
MINIMUM 61 9:14 PM 36 1991 55 6 66
AVERAGE 65 65 0 72
PRECIPITATION (IN)
YESTERDAY 1.21 1.33 2001 0.11 1.10 0.11
MONTH TO DATE 2.96 2.16 0.80 0.39
SINCE SEP 1 2.96 2.16 0.80 0.39
SINCE JAN 1 33.93 28.87 5.06 22.84
SNOWFALL (IN)
YESTERDAY 0.0 0.0 MM 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE SEP 1 0.0 0.0 0.0 0.0
SINCE JUL 1 0.0 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 3 -3 0
MONTH TO DATE 3 30 -27 32
SINCE SEP 1 3 30 -27 32
SINCE JUL 1 3 36 -33 37
COOLING
YESTERDAY 0 3 -3 7
MONTH TO DATE 186 96 90 94
SINCE SEP 1 186 96 90 94
SINCE JAN 1 1112 968 144 1086
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 13.8
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 3:00 AM
LOWEST 84 11:00 PM
AVERAGE 92
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 94 2017
MINIMUM TEMPERATURE (F) 55 39 1889
1983
1991
SUNRISE AND SUNSET
SEPTEMBER 21 2026.....SUNRISE 6:38 AM CDT SUNSET 6:50 PM CDT
SEPTEMBER 22 2026.....SUNRISE 6:39 AM CDT SUNSET 6:49 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$Product id iem:CDUS43-KLOT-202202:ORD:2026-09-20:interim · iem-afos · IEM archive
SHA-256 54ae82a7db903b162b9870b0169a4e18b510e7de47622b3f0cfb98059b2052bd
Product text
CDUS43 KLOT 202202
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
502 PM CDT SUN SEP 20 2026
...................................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR SEPTEMBER 20 2026...
VALID TODAY AS OF 0400 PM LOCAL TIME.
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)
TODAY
MAXIMUM 69 1:58 AM 93 2018 74 -5 77
MINIMUM 64 2:59 PM 36 1991 55 9 66
AVERAGE 67 65 2 72
PRECIPITATION (IN)
TODAY 1.17 1.33 2001 0.11 1.06 0.11
MONTH TO DATE 2.92 2.16 0.76 0.39
SINCE SEP 1 2.92 2.16 0.76 0.39
SINCE JAN 1 33.89 28.87 5.02 22.84
SNOWFALL (IN)
TODAY 0.0 0.0 MM 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE SEP 1 0.0 0.0 0.0 0.0
SINCE JUL 1 0.0 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 0 3 -3 0
MONTH TO DATE 3 30 -27 32
SINCE SEP 1 3 30 -27 32
SINCE JUL 1 3 36 -33 37
COOLING
TODAY 2 3 -1 7
MONTH TO DATE 188 96 92 94
SINCE SEP 1 188 96 92 94
SINCE JAN 1 1114 968 146 1086
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION N (20)
AVERAGE WIND SPEED 12.7
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
THUNDERSTORM
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 3:00 AM
LOWEST 90 9:00 AM
AVERAGE 95
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 94 2017
MINIMUM TEMPERATURE (F) 55 39 1889
1983
1991
SUNRISE AND SUNSET
SEPTEMBER 20 2026.....SUNRISE 6:37 AM CDT SUNSET 6:52 PM CDT
SEPTEMBER 21 2026.....SUNRISE 6:38 AM CDT SUNSET 6:50 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$Settlement source: the final NWS Climatological Report (CLI) for station KORD for the contract date, as archived verbatim at https://weathermarket.io/nws-cli/KORD/2026-09-20 with links to the NWS product and the IEM archive. A CORRECTED re-issue published before the settlement time supersedes earlier issues.
The settlement value for a date is the latest final CLI issued for that date; a corrected re-issue supersedes earlier issues. Interim same-day products never settle. This is the same rule that fills values.nwsOfficial in /api/station/{icao}/daily.
Every issue is stored verbatim as received - nothing is edited or re-derived. Products are held from 2026-09-01 (backfilled from the IEM AFOS archive) and ingested live from api.weather.gov since 2026-11-10, polled every 30 minutes. A date with no final CLI 14 hours after local midnight is reported as not_issued rather than filled in.