NWS CLI archive · settlement source
CLIORD · 시카고 · America/Chicago · ← 2026-09-27 · 2026-09-29 → · All dates for KORD · JSON · METAR-derived record
Final issued 2026-09-29 02:40:00 EDT · Product id iem:CDUS43-KLOT-290640:ORD:2026-09-28:final · IEM archive
Product id iem:CDUS43-KLOT-290640:ORD:2026-09-28:final · iem-afos · IEM archive
SHA-256 62e16fae72559eedb806b6a071f8a33311216da400c36c497ffd30e2b2f45d95
Product text
CDUS43 KLOT 290640
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
140 AM CDT TUE SEP 29 2026
...................................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR SEPTEMBER 28 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 73 1:58 PM 92 1953 71 2 80
MINIMUM 52 5:58 AM 29 1942 52 0 62
AVERAGE 63 61 2 71
PRECIPITATION (IN)
YESTERDAY 0.00 3.65 1972 0.10 -0.10 0.00
MONTH TO DATE 2.96 3.00 -0.04 0.49
SINCE SEP 1 2.96 3.00 -0.04 0.49
SINCE JAN 1 33.93 29.71 4.22 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 2 5 -3 0
MONTH TO DATE 27 64 -37 32
SINCE SEP 1 27 64 -37 32
SINCE JUL 1 27 70 -43 37
COOLING
YESTERDAY 0 2 -2 6
MONTH TO DATE 186 114 72 147
SINCE SEP 1 186 114 72 147
SINCE JAN 1 1112 986 126 1139
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION NE (40)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 4.2
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 1:00 AM
LOWEST 48 1:00 PM
AVERAGE 71
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 70 99 1953
MINIMUM TEMPERATURE (F) 52 32 1984
SUNRISE AND SUNSET
SEPTEMBER 29 2026.....SUNRISE 6:46 AM CDT SUNSET 6:37 PM CDT
SEPTEMBER 30 2026.....SUNRISE 6:48 AM CDT SUNSET 6:35 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-282135:ORD:2026-09-28:interim · iem-afos · IEM archive
SHA-256 67b750ae5503d18c77b18bc47431ad73965e0865aa68a2be219520458610cc52
Product text
CDUS43 KLOT 282135
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
435 PM CDT MON SEP 28 2026
...................................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR SEPTEMBER 28 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 73 1:58 PM 92 1953 71 2 80
MINIMUM 52 5:58 AM 29 1942 52 0 62
AVERAGE 63 61 2 71
PRECIPITATION (IN)
TODAY 0.00 3.65 1972 0.10 -0.10 0.00
MONTH TO DATE 2.96 3.00 -0.04 0.49
SINCE SEP 1 2.96 3.00 -0.04 0.49
SINCE JAN 1 33.93 29.71 4.22 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 2 5 -3 0
MONTH TO DATE 27 64 -37 32
SINCE SEP 1 27 64 -37 32
SINCE JUL 1 27 70 -43 37
COOLING
TODAY 0 2 -2 6
MONTH TO DATE 186 114 72 147
SINCE SEP 1 186 114 72 147
SINCE JAN 1 1112 986 126 1139
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION E (70)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 4.5
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 1:00 AM
LOWEST 48 1:00 PM
AVERAGE 71
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 70 99 1953
MINIMUM TEMPERATURE (F) 52 32 1984
SUNRISE AND SUNSET
SEPTEMBER 28 2026.....SUNRISE 6:45 AM CDT SUNSET 6:38 PM CDT
SEPTEMBER 29 2026.....SUNRISE 6:46 AM CDT SUNSET 6:37 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/2026-09-28 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.