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Updated

3.3 MB across 1 part, newest sealed 18 September 2026 at 20:44 UTC.

The last refresh changed nothing.

STATION_HOUR_UNIQUE passed.

ROWS_PRESENT passed.

NONNEGATIVE_PRECIPITATION passed.

station_id

string

Current canonical station identifier; historical aliases resolve to this station.

  • KMDW100%
Valid
232,813 · 100%
Missing
0 · 0%
Distinct
1 · 0% of valid

city

string

City associated with the observation station.

  • Chicago100%
Valid
232,813 · 100%
Missing
0 · 0%
Distinct
1 · 0% of valid

state

string

U.S. state abbreviation.

  • IL100%
Valid
232,813 · 100%
Missing
0 · 0%
Distinct
1 · 0% of valid

ghcn_id

string

NOAA GHCN station identifier.

  • USW00014819100%
Valid
232,813 · 100%
Missing
0 · 0%
Distinct
1 · 0% of valid

hour_utc

timestamp_utc

UTC hour bucket containing the selected report time.

  • 2000-01-01 06:00:00+000%
  • 2000-01-01 07:00:00+000%
  • 2000-01-01 08:00:00+000%
  • Other (232,801)
Valid
232,813 · 100%
Missing
0 · 0%
Distinct
232,813 · 100% of valid

observed_at

timestamp_utc

Selected report timestamp converted from local standard time to UTC.

  • 2000-01-01 06:53:00+000%
  • 2000-01-01 07:53:00+000%
  • 2000-01-01 08:53:00+000%
  • Other (232,801)
Valid
232,813 · 100%
Missing
0 · 0%
Distinct
232,813 · 100% of valid

reported_local_standard_time

string

Original NOAA report time in local standard time without daylight saving adjustments.

  • 2000-01-01 00:53:000%
  • 2000-01-01 01:53:000%
  • 2000-01-01 02:53:000%
  • Other (232,801)
Valid
232,813 · 100%
Missing
0 · 0%
Distinct
232,813 · 100% of valid

report_type

string

SODHP hourly summary preferred; FM-15 routine METAR fallback.

  • FM-1598%
  • SODHP2%
Valid
232,813 · 100%
Missing
0 · 0%
Distinct
2 · 0% of valid

report_source

string

NOAA source code.

  • 34380%
  • 33518%
  • 2232%
Valid
232,813 · 100%
Missing
0 · 0%
Distinct
4 · 0% of valid

precipitation_raw

string

Original HourlyPrecipitation token, preserving trace and quality flags.

  • 0.085%
  • T9%
  • 0.32%
  • Other (116)
Valid
218,889 · 94%
Missing
13,924 · 6%
Distinct
128 · 0.1% of valid

precipitation_mm

decimal

Hourly liquid-equivalent precipitation in millimeters; trace or unparseable values remain null.

  • 0.000093%
  • 0.30002%
  • 0.50001%
  • Other (115)
Valid
200,100 · 85.9%
Missing
32,713 · 14.1%
Distinct
127 · 0.1% of valid
Min
0.0000
25%
0.0000
Median
0.0000
75%
0.0000
Max
152.4000

is_trace

boolean

True for source trace token T.

  • false92%
  • true8%
Valid
232,813 · 100%
Missing
0 · 0%
Distinct
2 · 0% of valid

quality_status

string

Missing, trace, numeric, suspect, or unparsed source value.

  • numeric86%
  • trace8%
  • missing6%
Valid
232,813 · 100%
Missing
0 · 0%
Distinct
3 · 0% of valid

interval_basis

string

Summary hourly interval or preceding rolling hour of a routine METAR.

  • rolling_hour_metar_fallback98%
  • summary_hourly2%
Valid
232,813 · 100%
Missing
0 · 0%
Distinct
2 · 0% of valid

is_latest

boolean

True for the most recent report hour available for this station.

  • false100%
  • true0%
Valid
232,813 · 100%
Missing
0 · 0%
Distinct
2 · 0% of valid

source_url

string

NOAA acquisition URL for the source time slice.

  • https://www.ncei.noaa.gov/access/services/data/v1?dataset=local-climatological-data-v2&stations=USW00014819&startDate=2012-01-01&endDate=2014-12-31&dataTypes=HourlyPrecipitation&format=csv&units=metric11%
  • https://www.ncei.noaa.gov/access/services/data/v1?dataset=local-climatological-data-v2&stations=USW00014819&startDate=2018-01-01&endDate=2020-12-31&dataTypes=HourlyPrecipitation&format=csv&units=metric11%
  • https://www.ncei.noaa.gov/access/services/data/v1?dataset=local-climatological-data-v2&stations=USW00014819&startDate=2006-01-01&endDate=2008-12-31&dataTypes=HourlyPrecipitation&format=csv&units=metric11%
Valid
232,813 · 100%
Missing
0 · 0%
Distinct
9 · 0% of valid

snapshot_date

date

Date this archived source snapshot was requested.

  • 2026-09-14100%
Valid
232,813 · 100%
Missing
0 · 0%
Distinct
1 · 0% of valid

latitude

decimal

Station latitude effective on the local report date; approximate gauge location.

  • 41.786110082%
  • 41.784120018%
Valid
232,813 · 100%
Missing
0 · 0%
Distinct
2 · 0% of valid
Min
41.7841200
25%
41.7861100
Median
41.7861100
75%
41.7861100
Max
41.7861100

longitude

decimal

Station longitude effective on the local report date; approximate gauge location.

  • -87.752220082%
  • -87.755140018%
Valid
232,813 · 100%
Missing
0 · 0%
Distinct
2 · 0% of valid
Min
-87.7551400
25%
-87.7522200
Median
-87.7522200
75%
-87.7522200
Max
-87.7522200

coordinate_precision

string

Published precision code for the historical coordinate.

  • DDMMSS82%
  • DDddddd18%
Valid
232,813 · 100%
Missing
0 · 0%
Distinct
2 · 0% of valid

coordinate_datum

string

Published horizontal datum.

  • WGS84100%
Valid
41,811 · 18%
Missing
191,002 · 82%
Distinct
1 · 0% of valid

coordinate_source

string

Published coordinate evidence source.

  • ASOS CM100%
Valid
41,811 · 18%
Missing
191,002 · 82%
Distinct
1 · 0% of valid

location_valid_from

date

Start of the matched location effective period.

  • 1997-04-1082%
  • 2021-11-2218%
Valid
232,813 · 100%
Missing
0 · 0%
Distinct
2 · 0% of valid

location_valid_to

date

End of the matched period; null for Present.

  • 2021-11-22100%
Valid
191,002 · 82%
Missing
41,811 · 18%
Distinct
1 · 0% of valid

metadata_source_url

string

NOAA HOMR station-history source.

  • https://www.ncei.noaa.gov/access/homr/services/station/20005916?date=all&definitions=false100%
Valid
232,813 · 100%
Missing
0 · 0%
Distinct
1 · 0% of valid

equipment_types

string

Distinct precipitation equipment codes for all active NOAA program records, separated by |; null if no matching history.

No distribution published

Valid
0 · 0%
Missing
232,813 · 100%
Distinct
0 · 0% of valid

equipment_record_count

integer

Number of active precipitation equipment history records, including overlapping observation programs.

Histogram: 0 to 0, 232,813
00
Valid
232,813 · 100%
Missing
0 · 0%
Distinct
1 · 0% of valid
Min
0
25%
0
Median
0
75%
0
Max
0