NWS CLI archive · settlement source
CLIORD · 시카고 · America/Chicago · ← 2026-09-25 · 2026-09-27 → · All dates for KORD · JSON · METAR-derived record
Final issued 2026-09-27 02:31:00 EDT · Product id iem:CDUS43-KLOT-270631:ORD:2026-09-26:final · IEM archive
Product id iem:CDUS43-KLOT-270631:ORD:2026-09-26:final · iem-afos · IEM archive
SHA-256 e2e469b9befaf6156dcc2d6d5fb057897fa106f67d6dcefedc7cbc76b5ba9d04
Product text
CDUS43 KLOT 270631
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
131 AM CDT SUN SEP 27 2026
...................................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR SEPTEMBER 26 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 12:43 PM 92 2017 72 -3 83
MINIMUM 51 4:54 AM 35 1928 53 -2 59
AVERAGE 60 62 -2 71
PRECIPITATION (IN)
YESTERDAY 0.00 2.71 1933 0.10 -0.10 0.00
MONTH TO DATE 2.96 2.80 0.16 0.49
SINCE SEP 1 2.96 2.80 0.16 0.49
SINCE JAN 1 33.93 29.51 4.42 22.94
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 5 5 0 0
MONTH TO DATE 21 54 -33 32
SINCE SEP 1 21 54 -33 32
SINCE JUL 1 21 60 -39 37
COOLING
YESTERDAY 0 2 -2 6
MONTH TO DATE 186 110 76 131
SINCE SEP 1 186 110 76 131
SINCE JAN 1 1112 982 130 1123
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION NE (60)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 4.4
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 3:00 AM
LOWEST 45 2:00 PM
AVERAGE 67
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 71 91 1971
MINIMUM TEMPERATURE (F) 53 31 1942
SUNRISE AND SUNSET
SEPTEMBER 27 2026.....SUNRISE 6:44 AM CDT SUNSET 6:40 PM CDT
SEPTEMBER 28 2026.....SUNRISE 6:45 AM CDT SUNSET 6:38 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-262135:ORD:2026-09-26:interim · iem-afos · IEM archive
SHA-256 9d411e289d14335dd4d9114ee6feb5d209a3c0f54d0ea3f713735a4d8dc69d4d
Product text
CDUS43 KLOT 262135
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
435 PM CDT SAT SEP 26 2026
...................................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR SEPTEMBER 26 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 12:43 PM 92 2017 72 -3 83
MINIMUM 51 4:54 AM 35 1928 53 -2 59
AVERAGE 60 62 -2 71
PRECIPITATION (IN)
TODAY 0.00 2.71 1933 0.10 -0.10 0.00
MONTH TO DATE 2.96 2.80 0.16 0.49
SINCE SEP 1 2.96 2.80 0.16 0.49
SINCE JAN 1 33.93 29.51 4.42 22.94
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 5 5 0 0
MONTH TO DATE 21 54 -33 32
SINCE SEP 1 21 54 -33 32
SINCE JUL 1 21 60 -39 37
COOLING
TODAY 0 2 -2 6
MONTH TO DATE 186 110 76 131
SINCE SEP 1 186 110 76 131
SINCE JAN 1 1112 982 130 1123
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION E (100)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 4.0
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 3:00 AM
LOWEST 45 2:00 PM
AVERAGE 67
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 71 91 1971
MINIMUM TEMPERATURE (F) 53 31 1942
SUNRISE AND SUNSET
SEPTEMBER 26 2026.....SUNRISE 6:43 AM CDT SUNSET 6:42 PM CDT
SEPTEMBER 27 2026.....SUNRISE 6:44 AM CDT SUNSET 6:40 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/2026-09-26 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.