NWS CLI archive · settlement source
CLIORD · 시카고 · America/Chicago · ← 2026-09-26 · 2026-09-28 → · All dates for KORD · JSON · METAR-derived record
Final issued 2026-09-28 02:41:00 EDT · Product id iem:CDUS43-KLOT-280641:ORD:2026-09-27:final · IEM archive
Product id iem:CDUS43-KLOT-280641:ORD:2026-09-27:final · iem-afos · IEM archive
SHA-256 aa985f3ef0f36a01cd67e5f3b095805df61b51fa572000aadd7897efade2c4e9
Product text
CDUS43 KLOT 280641
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
141 AM CDT MON SEP 28 2026
...................................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR SEPTEMBER 27 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 72 1:52 PM 91 1971 71 1 87
MINIMUM 49 4:56 AM 31 1942 53 -4 63
AVERAGE 61 62 -1 75
PRECIPITATION (IN)
YESTERDAY 0.00 2.28 2019 0.10 -0.10 0.00
MONTH TO DATE 2.96 2.90 0.06 0.49
SINCE SEP 1 2.96 2.90 0.06 0.49
SINCE JAN 1 33.93 29.61 4.32 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 4 5 -1 0
MONTH TO DATE 25 59 -34 32
SINCE SEP 1 25 59 -34 32
SINCE JUL 1 25 65 -40 37
COOLING
YESTERDAY 0 2 -2 10
MONTH TO DATE 186 112 74 141
SINCE SEP 1 186 112 74 141
SINCE JAN 1 1112 984 128 1133
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION NE (50)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION E (70)
AVERAGE WIND SPEED 5.0
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
FOG W/VISIBILITY <= 1/4 MILE
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 7:00 AM
LOWEST 38 1:00 PM
AVERAGE 69
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 71 92 1953
MINIMUM TEMPERATURE (F) 52 29 1942
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.
$$Product id iem:CDUS43-KLOT-272134:ORD:2026-09-27:interim · iem-afos · IEM archive
SHA-256 ad9bc8fb134009faafff49c4689e8ac8602729ae3d5cf439b7438cd26f648906
Product text
CDUS43 KLOT 272134
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
434 PM CDT SUN SEP 27 2026
...................................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR SEPTEMBER 27 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 72 1:52 PM 91 1971 71 1 87
MINIMUM 49 4:56 AM 31 1942 53 -4 63
AVERAGE 61 62 -1 75
PRECIPITATION (IN)
TODAY 0.00 2.28 2019 0.10 -0.10 0.00
MONTH TO DATE 2.96 2.90 0.06 0.49
SINCE SEP 1 2.96 2.90 0.06 0.49
SINCE JAN 1 33.93 29.61 4.32 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 4 5 -1 0
MONTH TO DATE 25 59 -34 32
SINCE SEP 1 25 59 -34 32
SINCE JUL 1 25 65 -40 37
COOLING
TODAY 0 2 -2 10
MONTH TO DATE 186 112 74 141
SINCE SEP 1 186 112 74 141
SINCE JAN 1 1112 984 128 1133
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION NE (50)
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION NE (50)
AVERAGE WIND SPEED 4.0
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
FOG W/VISIBILITY <= 1/4 MILE
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 7:00 AM
LOWEST 38 1:00 PM
AVERAGE 69
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 71 92 1953
MINIMUM TEMPERATURE (F) 52 29 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.
$$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/2026-09-27 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.