NWS CLI archive · settlement source
CLIORD · 시카고 · America/Chicago · ← 2026-09-15 · 2026-09-17 → · All dates for KORD · JSON · METAR-derived record
Final issued 2026-09-17 02:33:00 EDT · Product id iem:CDUS43-KLOT-170633:ORD:2026-09-16:final · IEM archive
Product id iem:CDUS43-KLOT-170633:ORD:2026-09-16:final · iem-afos · IEM archive
SHA-256 26d1a9dd7abb117463969e3490871854aae66542106bc8e7d7c0fb977aa48330
Product text
CDUS43 KLOT 170633
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
133 AM CDT THU SEP 17 2026
...................................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR SEPTEMBER 16 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 76 11:56 AM 92 1931 76 0 83
1955
MINIMUM 64 7:03 AM 37 1984 57 7 63
AVERAGE 70 66 4 73
PRECIPITATION (IN)
YESTERDAY 0.03 1.16 1980 0.10 -0.07 0.00
MONTH TO DATE 0.18 1.73 -1.55 0.28
SINCE SEP 1 0.18 1.73 -1.55 0.28
SINCE JAN 1 31.15 28.44 2.71 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 2 -2 0
MONTH TO DATE 3 18 -15 32
SINCE SEP 1 3 18 -15 32
SINCE JUL 1 3 24 -21 37
COOLING
YESTERDAY 5 4 1 8
MONTH TO DATE 172 83 89 57
SINCE SEP 1 172 83 89 57
SINCE JAN 1 1098 955 143 1049
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 9.2
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 4:00 PM
LOWEST 65 2:00 AM
AVERAGE 79
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 93 1955
MINIMUM TEMPERATURE (F) 57 37 1984
SUNRISE AND SUNSET
SEPTEMBER 17 2026.....SUNRISE 6:34 AM CDT SUNSET 6:57 PM CDT
SEPTEMBER 18 2026.....SUNRISE 6:35 AM CDT SUNSET 6:56 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-162149:ORD:2026-09-16:interim · iem-afos · IEM archive
SHA-256 ca12249d4a406c349dec3640069bdf7bb21da9cd32708184830273f6b51e5d4f
Product text
CDUS43 KLOT 162149
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
449 PM CDT WED SEP 16 2026
...................................
...THE CHICAGO-OHARE CLIMATE SUMMARY FOR SEPTEMBER 16 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 76 11:56 AM 92 1931 76 0 83
1955
MINIMUM 64 7:03 AM 37 1984 57 7 63
AVERAGE 70 66 4 73
PRECIPITATION (IN)
TODAY 0.01 1.16 1980 0.10 -0.09 0.00
MONTH TO DATE 0.16 1.73 -1.57 0.28
SINCE SEP 1 0.16 1.73 -1.57 0.28
SINCE JAN 1 31.13 28.44 2.69 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 2 -2 0
MONTH TO DATE 3 18 -15 32
SINCE SEP 1 3 18 -15 32
SINCE JUL 1 3 24 -21 37
COOLING
TODAY 5 4 1 8
MONTH TO DATE 172 83 89 57
SINCE SEP 1 172 83 89 57
SINCE JAN 1 1098 955 143 1049
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 9.4
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 2:00 PM
LOWEST 65 2:00 AM
AVERAGE 78
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 93 1955
MINIMUM TEMPERATURE (F) 57 37 1984
SUNRISE AND SUNSET
SEPTEMBER 16 2026.....SUNRISE 6:33 AM CDT SUNSET 6:59 PM CDT
SEPTEMBER 17 2026.....SUNRISE 6:34 AM CDT SUNSET 6:57 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/2026-09-16 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.