NWS CLI archive · settlement source
CLIORD · 시카고 · America/Chicago · ← 2026-10-17 · 2026-10-19 → · All dates for KORD · JSON · METAR-derived record
Final issued 2026-10-19 02:31:00 EDT · Product id iem:CDUS43-KLOT-190631:ORD:2026-10-18:final · IEM archive
Product id iem:CDUS43-KLOT-190631:ORD:2026-10-18:final · iem-afos · IEM archive
SHA-256 620fcc4595c95e27b8ba6b7d64695ce2cc80148a10687b1dd684fc9e00d24695
Product text
CDUS43 KLOT 190631
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
131 AM CDT MON OCT 19 2026
...................................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR OCTOBER 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 63 4:10 PM 87 1950 62 1 73
MINIMUM 42 6:14 AM 20 1948 45 -3 58
AVERAGE 53 53 0 66
PRECIPITATION (IN)
YESTERDAY 0.00 2.09 1985 0.12 -0.12 0.57
MONTH TO DATE 2.54 2.03 0.51 2.12
SINCE SEP 1 6.24 5.22 1.02 2.61
SINCE JAN 1 37.21 31.93 5.28 25.06
SNOWFALL (IN)
YESTERDAY 0.0 0.7 1989 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 12 12 0 0
MONTH TO DATE 76 165 -89 59
SINCE SEP 1 103 242 -139 91
SINCE JUL 1 103 248 -145 96
COOLING
YESTERDAY 0 0 0 1
MONTH TO DATE 31 12 19 57
SINCE SEP 1 218 128 90 223
SINCE JAN 1 1144 1000 144 1215
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION SW (230)
AVERAGE WIND SPEED 9.4
SKY COVER
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 70 12:00 AM
LOWEST 33 4:00 PM
AVERAGE 52
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 61 84 1971
MINIMUM TEMPERATURE (F) 44 21 1992
SUNRISE AND SUNSET
OCTOBER 19 2026.......SUNRISE 7:09 AM CDT SUNSET 6:04 PM CDT
OCTOBER 20 2026.......SUNRISE 7:10 AM CDT SUNSET 6:02 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-182140:ORD:2026-10-18:interim · iem-afos · IEM archive
SHA-256 4d4aeb0b872cdef32675d1dcd767a4ea650235d8bb6faca81c9a15f03762148e
Product text
CDUS43 KLOT 182140
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
440 PM CDT SUN OCT 18 2026
...................................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR OCTOBER 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 63 2:59 PM 87 1950 62 1 73
MINIMUM 42 6:14 AM 20 1948 45 -3 58
AVERAGE 53 53 0 66
PRECIPITATION (IN)
TODAY 0.00 2.09 1985 0.12 -0.12 0.57
MONTH TO DATE 2.54 2.03 0.51 2.12
SINCE SEP 1 6.24 5.22 1.02 2.61
SINCE JAN 1 37.21 31.93 5.28 25.06
SNOWFALL (IN)
TODAY 0.0 0.7 1989 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 12 12 0 0
MONTH TO DATE 76 165 -89 59
SINCE SEP 1 103 242 -139 91
SINCE JUL 1 103 248 -145 96
COOLING
TODAY 0 0 0 1
MONTH TO DATE 31 12 19 57
SINCE SEP 1 218 128 90 223
SINCE JAN 1 1144 1000 144 1215
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION SW (230)
AVERAGE WIND SPEED 10.4
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 70 12:00 AM
LOWEST 34 3:00 PM
AVERAGE 52
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 61 84 1971
MINIMUM TEMPERATURE (F) 44 21 1992
SUNRISE AND SUNSET
OCTOBER 18 2026.......SUNRISE 7:08 AM CDT SUNSET 6:05 PM CDT
OCTOBER 19 2026.......SUNRISE 7:09 AM CDT SUNSET 6:04 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/2026-10-18 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.