NWS CLI archive · settlement source
CLIIAD · 워싱턴 D.C. · America/New_York · ← 2026-11-05 · 2026-11-07 → · All dates for KIAD · JSON · METAR-derived record
Final issued 2026-11-07 02:31:00 EST · Product id 60a87781-a505-4f6a-85ac-768d636ea742 · NWS product · IEM archive
Product id 60a87781-a505-4f6a-85ac-768d636ea742 · nws-api · NWS product · IEM archive
SHA-256 8f0b531b440e5e524787c75009116c3010824f68778c346a83d02bb71e0098be
Product text
000
CDUS41 KLWX 070731
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
231 AM EST SAT NOV 07 2026
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR NOVEMBER 6 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 73 12:20 PM 83 2024 60 13 60
MINIMUM 58 8:57 PM 16 1991 38 20 32
AVERAGE 66 49 17 46
PRECIPITATION (IN)
YESTERDAY 0.42 2.42 1963 0.10 0.32 0.00
MONTH TO DATE 0.57 0.65 -0.08 0.00
SINCE SEP 1 7.98 8.24 -0.26 3.35
SINCE JAN 1 37.38 37.46 -0.08 27.99
SNOWFALL (IN)
YESTERDAY 0.0 0.0 2001 0.0 0.0 0.0
2002
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 MM
DEGREE DAYS
HEATING
YESTERDAY 0 16 -16 19
MONTH TO DATE 29 91 -62 77
SINCE SEP 1 239 420 -181 335
SINCE JUL 1 239 421 -182 337
COOLING
YESTERDAY 1 0 1 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 15 HIGHEST WIND DIRECTION NW (320)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION NW (330)
AVERAGE WIND SPEED 5.5
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 12:00 AM
LOWEST 49 11:00 AM
AVERAGE 75
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 60 80 2024
MINIMUM TEMPERATURE (F) 38 22 1982
1991
SUNRISE AND SUNSET
NOVEMBER 7 2026......SUNRISE 6:44 AM EST SUNSET 5:03 PM EST
NOVEMBER 8 2026......SUNRISE 6:45 AM EST SUNSET 5:02 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$
Product id 3ad8bda0-dbf3-4ab8-bb9f-c652713dd1da · nws-api · NWS product · IEM archive
SHA-256 5e8aad03b12a1e30556a9950724b7e2aa6ebff3ad82c5d6df2bf30349c5a772e
Product text
000
CDUS41 KLWX 062130
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
430 PM EST FRI NOV 06 2026
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR NOVEMBER 6 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 73 12:20 PM 83 2024 60 13 60
MINIMUM 63 3:59 PM 16 1991 38 25 32
AVERAGE 68 49 19 46
PRECIPITATION (IN)
TODAY 0.42 2.42 1963 0.10 0.32 0.00
MONTH TO DATE 0.57 0.65 -0.08 0.00
SINCE SEP 1 7.98 8.24 -0.26 3.35
SINCE JAN 1 37.38 37.46 -0.08 27.99
SNOWFALL (IN)
TODAY 0.0 0.0 2001 0.0 0.0 0.0
2002
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 16 -16 19
MONTH TO DATE 29 91 -62 77
SINCE SEP 1 239 420 -181 335
SINCE JUL 1 239 421 -182 337
COOLING
TODAY 3 0 3 0
MONTH TO DATE 9 0 9 0
SINCE SEP 1 277 174 103 182
SINCE JAN 1 1557 1230 327 1330
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION S (190)
AVERAGE WIND SPEED 5.6
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
THUNDERSTORM
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 12:00 AM
LOWEST 49 11:00 AM
AVERAGE 75
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 60 80 2024
MINIMUM TEMPERATURE (F) 38 22 1982
1991
SUNRISE AND SUNSET
NOVEMBER 6 2026......SUNRISE 6:43 AM EST SUNSET 5:04 PM EST
NOVEMBER 7 2026......SUNRISE 6:44 AM EST SUNSET 5:03 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/2026-11-06 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.