NWS CLI archive · settlement source
CLIIAD · 워싱턴 D.C. · America/New_York · ← 2026-11-03 · 2026-11-05 → · All dates for KIAD · JSON · METAR-derived record
Final issued 2026-11-05 02:23:00 EST · Product id f04fe37b-d399-47af-af35-07f192a96983 · NWS product · IEM archive
Product id f04fe37b-d399-47af-af35-07f192a96983 · nws-api · NWS product · IEM archive
SHA-256 9ef1e2378e497bbd7ae2d342c8125fd4b725652372d648e786c49001ee9cac39
Product text
000
CDUS41 KLWX 050723
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
223 AM EST THU NOV 05 2026
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR NOVEMBER 4 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 77 1:34 PM 81 1974 61 16 64
2003
MINIMUM 50 4:13 AM 21 1966 39 11 37
AVERAGE 64 50 14 51
PRECIPITATION (IN)
YESTERDAY T 1.95 1970 0.11 -0.11 0.00
MONTH TO DATE T 0.44 -0.44 0.00
SINCE SEP 1 7.41 8.03 -0.62 3.35
SINCE JAN 1 36.81 37.25 -0.44 27.99
SNOWFALL (IN)
YESTERDAY 0.0 T 1970 0.0 0.0 0.0
1991
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 1 15 -14 14
MONTH TO DATE 29 59 -30 47
SINCE SEP 1 239 388 -149 305
SINCE JUL 1 239 389 -150 307
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 268 174 94 182
SINCE JAN 1 1548 1230 318 1330
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION S (160)
AVERAGE WIND SPEED 6.8
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 5:00 AM
LOWEST 42 2:00 PM
AVERAGE 70
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 61 81 2022
MINIMUM TEMPERATURE (F) 38 19 1991
SUNRISE AND SUNSET
NOVEMBER 5 2026......SUNRISE 6:42 AM EST SUNSET 5:05 PM EST
NOVEMBER 6 2026......SUNRISE 6:43 AM EST SUNSET 5:04 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$
Product id 5a632da5-eb34-40c6-8265-89b05b35bb6a · nws-api · NWS product · IEM archive
SHA-256 d9b722ef10a2ad754ef133e982380769d73cc1be4f6d7514b574abff362113f9
Product text
000
CDUS41 KLWX 042135
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
435 PM EST WED NOV 04 2026
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR NOVEMBER 4 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 77 1:34 PM 81 1974 61 16 64
2003
MINIMUM 50 4:13 AM 21 1966 39 11 37
AVERAGE 64 50 14 51
PRECIPITATION (IN)
TODAY 0.00 1.95 1970 0.11 -0.11 0.00
MONTH TO DATE 0.00 0.44 -0.44 0.00
SINCE SEP 1 7.41 8.03 -0.62 3.35
SINCE JAN 1 36.81 37.25 -0.44 27.99
SNOWFALL (IN)
TODAY 0.0 T 1970 0.0 0.0 0.0
1991
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 1 15 -14 14
MONTH TO DATE 29 59 -30 47
SINCE SEP 1 239 388 -149 305
SINCE JUL 1 239 389 -150 307
COOLING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 268 174 94 182
SINCE JAN 1 1548 1230 318 1330
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION S (160)
AVERAGE WIND SPEED 6.6
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 5:00 AM
LOWEST 42 2:00 PM
AVERAGE 70
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 61 81 2022
MINIMUM TEMPERATURE (F) 38 19 1991
SUNRISE AND SUNSET
NOVEMBER 4 2026......SUNRISE 6:40 AM EST SUNSET 5:06 PM EST
NOVEMBER 5 2026......SUNRISE 6:42 AM EST SUNSET 5:05 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/2026-11-04 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.