NWS CLI archive · settlement source
CLIIAD · 워싱턴 D.C. · America/New_York · ← 2026-11-09 · 2026-11-11 → · All dates for KIAD · JSON · METAR-derived record
Final issued 2026-11-11 02:24:00 EST · Product id 1d92f133-0152-48f8-a6cc-7eb7c546624c · NWS product · IEM archive
Product id 1d92f133-0152-48f8-a6cc-7eb7c546624c · nws-api · NWS product · IEM archive
SHA-256 9e69f706df864992f71e53a76f3035caaf4d6030335836b48ccd4e68e9d6bfd2
Product text
000
CDUS41 KLWX 110724
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
224 AM EST WED NOV 11 2026
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR NOVEMBER 10 2026...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 70 3:48 PM 77 2020 59 11 54
MINIMUM 37 6:27 AM 21 2003 37 0 35
AVERAGE 54 48 6 45
PRECIPITATION (IN)
YESTERDAY 0.00 2.08 1990 0.11 -0.11 0.00
MONTH TO DATE 0.57 1.09 -0.52 0.34
SINCE SEP 1 7.98 8.68 -0.70 3.69
SINCE JAN 1 37.38 37.90 -0.52 28.33
SNOWFALL (IN)
YESTERDAY 0.0 1.6 1968 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 11 17 -6 20
MONTH TO DATE 76 158 -82 129
SINCE SEP 1 286 487 -201 387
SINCE JUL 1 286 488 -202 389
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 7 0 7 0
SINCE SEP 1 275 174 101 182
SINCE JAN 1 1555 1230 325 1330
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION S (190)
AVERAGE WIND SPEED 4.9
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 1:00 AM
LOWEST 30 3:00 PM
AVERAGE 60
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 58 78 2006
MINIMUM TEMPERATURE (F) 37 16 1973
SUNRISE AND SUNSET
NOVEMBER 11 2026......SUNRISE 6:48 AM EST SUNSET 4:59 PM EST
NOVEMBER 12 2026......SUNRISE 6:49 AM EST SUNSET 4:58 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$
Product id 7b25b3f8-d736-4c79-b814-1acc38605bc6 · nws-api · NWS product · IEM archive
SHA-256 cad38e7372b730551a7c19a2a2efbd1d310fc4ad010c58f76508d8f85063b2c2
Product text
000
CDUS41 KLWX 102126
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
426 PM EST TUE NOV 10 2026
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR NOVEMBER 10 2026...
VALID TODAY AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
TODAY
MAXIMUM 70 3:48 PM 77 2020 59 11 54
MINIMUM 37 6:27 AM 21 2003 37 0 35
AVERAGE 54 48 6 45
PRECIPITATION (IN)
TODAY 0.00 2.08 1990 0.11 -0.11 0.00
MONTH TO DATE 0.57 1.09 -0.52 0.34
SINCE SEP 1 7.98 8.68 -0.70 3.69
SINCE JAN 1 37.38 37.90 -0.52 28.33
SNOWFALL (IN)
TODAY 0.0 1.6 1968 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 11 17 -6 20
MONTH TO DATE 76 158 -82 129
SINCE SEP 1 286 487 -201 387
SINCE JUL 1 286 488 -202 389
COOLING
TODAY 0 0 0 0
MONTH TO DATE 7 0 7 0
SINCE SEP 1 275 174 101 182
SINCE JAN 1 1555 1230 325 1330
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION S (190)
AVERAGE WIND SPEED 5.3
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 1:00 AM
LOWEST 30 3:00 PM
AVERAGE 60
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 58 78 2006
MINIMUM TEMPERATURE (F) 37 16 1973
SUNRISE AND SUNSET
NOVEMBER 10 2026......SUNRISE 6:47 AM EST SUNSET 5:00 PM EST
NOVEMBER 11 2026......SUNRISE 6:48 AM EST SUNSET 4:59 PM EST
- 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 KIAD for the contract date, as archived verbatim at https://weathermarket.io/nws-cli/KIAD/2026-11-10 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.