NWS CLI archive · settlement source
CLIIAH · 휴스턴 · America/Chicago · ← 2026-09-16 · 2026-09-18 → · All dates for KIAH · JSON · METAR-derived record
Final issued 2026-09-18 02:42:00 EDT · Product id iem:CDUS44-KHGX-180642:IAH:2026-09-17:final · IEM archive
Product id iem:CDUS44-KHGX-180642:IAH:2026-09-17:final · iem-afos · IEM archive
SHA-256 6884efbc418a641951a195ad7209b6d56c1d87a126499b5f0a6a3dbf761f82ed
Product text
CDUS44 KHGX 180642
CLIIAH
CLIMATE REPORT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
142 AM CDT FRI SEP 18 2026
...................................
...THE HOUSTON INTERCONTINENTAL CLIMATE SUMMARY FOR SEPTEMBER 17 2026...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1889 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 90 12:17 PM 100 1995 90 0 95
MINIMUM 76 11:59 PM 55 1903 70 6 72
2000
AVERAGE 83 80 3 84
PRECIPITATION (IN)
YESTERDAY 0.00 1.85 1968 0.15 -0.15 0.00
MONTH TO DATE 0.91 2.87 -1.96 0.78
SINCE SEP 1 0.91 2.87 -1.96 0.78
SINCE JAN 1 35.25 36.64 -1.39 29.68
SNOWFALL (IN)
YESTERDAY 0.0
MONTH TO DATE 0.0
SINCE SEP 1 0.0
SINCE JUL 1 0.0
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 0 0 0 0
SINCE JUL 1 0 0 0 0
COOLING
YESTERDAY 18 15 3 19
MONTH TO DATE 348 288 60 294
SINCE SEP 1 348 288 60 294
SINCE JAN 1 3268 2773 495 3299
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION E (100)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION E (100)
AVERAGE WIND SPEED 7.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 94
LOWEST 61
AVERAGE 78
..........................................................
THE HOUSTON INTERCONTINENTAL CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 90 99 1927
MINIMUM TEMPERATURE (F) 70 54 1903
1981
2000
SUNRISE AND SUNSET
SEPTEMBER 18 2026.....SUNRISE 7:08 AM CDT SUNSET 7:23 PM CDT
SEPTEMBER 19 2026.....SUNRISE 7:08 AM CDT SUNSET 7:22 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$Product id iem:CDUS44-KHGX-172131:IAH:2026-09-17:interim · iem-afos · IEM archive
SHA-256 f275c0ab4d2644402e4ece2908aada6a2cd0b10fd1aabe0ad6d42a567dca37fa
Product text
CDUS44 KHGX 172131
CLIIAH
CLIMATE REPORT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
431 PM CDT THU SEP 17 2026
...................................
...THE HOUSTON INTERCONTINENTAL CLIMATE SUMMARY FOR SEPTEMBER 17 2026...
VALID TODAY AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1889 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
TODAY
MAXIMUM 90 12:17 PM 100 1995 90 0 95
MINIMUM 79 6:26 AM 55 1903 70 9 72
2000
AVERAGE 85 80 5 84
PRECIPITATION (IN)
TODAY 0.00 1.85 1968 0.15 -0.15
MONTH TO DATE 0.91 2.87 -1.96
SINCE SEP 1 0.91 2.87 -1.96
SINCE JAN 1 35.25 36.64 -1.39
SNOWFALL (IN)
TODAY 0.0
MONTH TO DATE 0.0
SINCE SEP 1 0.0
SINCE JUL 1 0.0
DEGREE DAYS
HEATING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 0 0 0 0
SINCE JUL 1 0 0 0 0
COOLING
TODAY 20 15 5 19
MONTH TO DATE 350 288 62 294
SINCE SEP 1 350 288 62 294
SINCE JAN 1 3270 2773 497 3299
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION E (100)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION E (100)
AVERAGE WIND SPEED 9.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 94
LOWEST 70
AVERAGE 82
..........................................................
THE HOUSTON INTERCONTINENTAL CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 90 99 1927
MINIMUM TEMPERATURE (F) 70 54 1903
1981
2000
SUNRISE AND SUNSET
SEPTEMBER 17 2026.....SUNRISE 7:07 AM CDT SUNSET 7:24 PM CDT
SEPTEMBER 18 2026.....SUNRISE 7:08 AM CDT SUNSET 7:23 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 KIAH for the contract date, as archived verbatim at https://weathermarket.io/nws-cli/KIAH/2026-09-17 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.