NWS CLI archive · settlement source
CLIIAH · 휴스턴 · America/Chicago · ← 2026-09-17 · 2026-09-19 → · All dates for KIAH · JSON · METAR-derived record
Final issued 2026-09-19 02:24:00 EDT · Product id iem:CDUS44-KHGX-190624:IAH:2026-09-18:final · IEM archive
Product id iem:CDUS44-KHGX-190624:IAH:2026-09-18:final · iem-afos · IEM archive
SHA-256 e0d36d48ddb337318ede99658b126a5e4720a6da2351f77ed5fe7b6586c48cb4
Product text
CDUS44 KHGX 190624
CLIIAH
CLIMATE REPORT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
124 AM CDT SAT SEP 19 2026
...................................
...THE HOUSTON INTERCONTINENTAL CLIMATE SUMMARY FOR SEPTEMBER 18 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 94 3:13 PM 99 1927 90 4 93
MINIMUM 72 11:42 PM 54 1903 70 2 72
1981
2000
AVERAGE 83 80 3 83
PRECIPITATION (IN)
YESTERDAY 0.00 2.53 1908 0.15 -0.15 0.00
MONTH TO DATE 0.91 3.02 -2.11 0.78
SINCE SEP 1 0.91 3.02 -2.11 0.78
SINCE JAN 1 35.25 36.79 -1.54 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 18
MONTH TO DATE 366 303 63 312
SINCE SEP 1 366 303 63 312
SINCE JAN 1 3286 2788 498 3317
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION E (90)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 5.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100
LOWEST 35
AVERAGE 68
..........................................................
THE HOUSTON INTERCONTINENTAL CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 90 98 2024
MINIMUM TEMPERATURE (F) 70 51 1981
SUNRISE AND SUNSET
SEPTEMBER 19 2026.....SUNRISE 7:08 AM CDT SUNSET 7:22 PM CDT
SEPTEMBER 20 2026.....SUNRISE 7:09 AM CDT SUNSET 7:20 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-182209:IAH:2026-09-18:interim · iem-afos · IEM archive
SHA-256 09ab838aefb2e5eda2fd4e40f4fc5f047d12d984751a51a71a69e68633eabe43
Product text
CDUS44 KHGX 182209
CLIIAH
CLIMATE REPORT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
509 PM CDT FRI SEP 18 2026
...................................
...THE HOUSTON INTERCONTINENTAL CLIMATE SUMMARY FOR SEPTEMBER 18 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 94 2:51 PM 99 1927 90 4 93
MINIMUM 73 3:00 AM 54 1903 70 3 72
1981
2000
AVERAGE 84 80 4 83
PRECIPITATION (IN)
TODAY 0.00 2.53 1908 0.15 -0.15
MONTH TO DATE 0.91 3.02 -2.11
SINCE SEP 1 0.91 3.02 -2.11
SINCE JAN 1 35.25 36.79 -1.54
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 19 15 4 18
MONTH TO DATE 367 303 64 312
SINCE SEP 1 367 303 64 312
SINCE JAN 1 3287 2788 499 3317
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION E (90)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 5.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100
LOWEST 35
AVERAGE 68
..........................................................
THE HOUSTON INTERCONTINENTAL CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 90 98 2024
MINIMUM TEMPERATURE (F) 70 51 1981
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.
$$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/2026-09-18 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.