NWS CLI archive · settlement source
CLIORD · 시카고 · America/Chicago · ← 2026-09-17 · 2026-09-19 → · All dates for KORD · JSON · METAR-derived record
Final issued 2026-09-19 02:33:00 EDT · Product id iem:CDUS43-KLOT-190633:ORD:2026-09-18:final · IEM archive
Product id iem:CDUS43-KLOT-190633:ORD:2026-09-18:final · iem-afos · IEM archive
SHA-256 772ef39d6a9ecb8d02791c84b0ee03a199539282a861eba63b86ea938b1273d5
Product text
CDUS43 KLOT 190633
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
133 AM CDT SAT SEP 19 2026
...................................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR SEPTEMBER 18 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 3:10 PM 94 1955 75 -3 87
MINIMUM 65 5:54 AM 40 1889 56 9 62
1901
1903
AVERAGE 69 66 3 75
PRECIPITATION (IN)
YESTERDAY T 2.41 2015 0.10 -0.10 0.00
MONTH TO DATE 0.89 1.94 -1.05 0.28
SINCE SEP 1 0.89 1.94 -1.05 0.28
SINCE JAN 1 31.86 28.65 3.21 22.73
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 24 -21 32
SINCE SEP 1 3 24 -21 32
SINCE JUL 1 3 30 -27 37
COOLING
YESTERDAY 4 3 1 10
MONTH TO DATE 184 90 94 74
SINCE SEP 1 184 90 94 74
SINCE JAN 1 1110 962 148 1066
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION E (100)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 10.8
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 84 5:00 AM
LOWEST 55 11:00 AM
AVERAGE 70
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 93 1955
MINIMUM TEMPERATURE (F) 56 40 1991
SUNRISE AND SUNSET
SEPTEMBER 19 2026.....SUNRISE 6:36 AM CDT SUNSET 6:54 PM CDT
SEPTEMBER 20 2026.....SUNRISE 6:37 AM CDT SUNSET 6:52 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-182154:ORD:2026-09-18:interim · iem-afos · IEM archive
SHA-256 40558d374f197a57ed92be3d008e3bcfb8bb530f543fb8ab1f684fdafff9aac7
Product text
CDUS43 KLOT 182154
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
454 PM CDT FRI SEP 18 2026
...................................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR SEPTEMBER 18 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 2:59 PM 94 1955 75 -3 87
MINIMUM 65 5:54 AM 40 1889 56 9 62
1901
1903
AVERAGE 69 66 3 75
PRECIPITATION (IN)
TODAY T 2.41 2015 0.10 -0.10 0.00
MONTH TO DATE 0.89 1.94 -1.05 0.28
SINCE SEP 1 0.89 1.94 -1.05 0.28
SINCE JAN 1 31.86 28.65 3.21 22.73
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 24 -21 32
SINCE SEP 1 3 24 -21 32
SINCE JUL 1 3 30 -27 37
COOLING
TODAY 4 3 1 10
MONTH TO DATE 184 90 94 74
SINCE SEP 1 184 90 94 74
SINCE JAN 1 1110 962 148 1066
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION E (100)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 11.2
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 84 5:00 AM
LOWEST 55 11:00 AM
AVERAGE 70
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 93 1955
MINIMUM TEMPERATURE (F) 56 40 1991
SUNRISE AND SUNSET
SEPTEMBER 18 2026.....SUNRISE 6:35 AM CDT SUNSET 6:56 PM CDT
SEPTEMBER 19 2026.....SUNRISE 6:36 AM CDT SUNSET 6:54 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/2026-09-18 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.