Storm Station
Sign in

At a river or reservoir gauge

DCP network, identified by the register

Identifier
GRFI2
Latitude
38.96806 N
Longitude
90.42889 W
Elevation
-
Listed
Automatically, on 332 reports in 169 hours over the last seven days
Rank
509of 1,393 in Illinois, Oct 16
Observed
10:00 PMCDT, 41 minutes ago
Precipitation this hour
0in
Precipitation today
1.9in

Ranking Statistics

On the radar over GraftonReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

At a river or reservoir gauge

Drawn as the kind of place it stands at. 137 instruments in Illinois stand at one.

Station charts

Grafton Report

Rank 509 of 1,393 in Illinois, Oct 16. The 247 rank orders a state's stations by their 247 score out of 100: how reliably they report, how accurate their readings are against a reference station, how their readings pass their checks, and how they stand against the forecast.

Ranking Statistics

247 score97.7of 100

Illinois median
95.9the median score of 1,393 stations
Scoring higher
503stations in Illinois
Sharing its score
10ranks 504 to 513
Points deducted
2.31.4 arrival, 0.5 forecast check, 0.4 reports received
Counted at the median
Accuracy, instrument checks, forecast checknot measured at this station; Illinois median 100.0, 100.0, 94.7
Next above
SARrank 508; ahead on reports due 504 against 336, the longer record first
Next below
GUNI2rank 510; behind on reports due 336 against 168, the longer record first

Equal scores are ordered by the share of scheduled reports received, then the reports due in the week (the longer record first), then the median arrival, then the longest silence.

  1. Reports receivedweight 3598.834.6 of 35 pointsIllinois median 99.1332 of 336 scheduled reports received in 7 days
  2. Arrivalweight 1086.18.6 of 10 pointsIllinois median 96.3half its reports arrived within 17 min
  3. Continuityweight 10100.010.0 of 10 pointsIllinois median 100.0longest silence 60 min, on a schedule of one report every 30 min
  4. Accuracyweight 20-20.0 of 20 points, at the medianIllinois median 100.0-
  5. Instrument checksweight 15-15.0 of 15 points, at the medianIllinois median 100.0-
  6. Forecast checkweight 10-9.5 of 10 points, at the medianIllinois median 94.7-

The score is the weighted mean of its six parts, from the last 7 days. How a station is ranked sets out each part.

How each part is scored
Reports received
Full marks for every scheduled report received, none for none, in proportion between
Arrival
Full marks for a median arrival within 10 min, none at 60 min
Continuity
Full marks for a longest silence of 3 reports or less (1.5 h), none for 72 (36 h)
Accuracy
Full marks within 1.5 °F of its reference, typically, none beyond 8.0 °F
Instrument checks
Full marks for no reading failed, none for 5 per cent or more
Forecast check
Full marks within 2 °F of the forecast on average, none at 8 °F
Rank
509of 1,393 in Illinois, Oct 16
Schedule
every 30 minon the hour's :00 and :30
Reports received, 24 hours
46 of 4895.8% of its schedule
Reports received, 7 days
332 of 33698.8% of its schedule
Days reported, 30 days
29 of 30
Longest silence, 7 days
1 hourfrom Oct 13, 1:00 PM
Latest report
Oct 15, 9:30 PMlocal time
Time to reach Storm Station
17 min9 in 10 within 27 min

From Storm Station's own record of every report it heard from this station.

Its schedule is one report every 30 min, 48 in 24 hours. Two reports in the same 30 min count as one received.

Chart of the 1,393 ranked stations in Illinois on Oct 16 by the share of their scheduled reports received in Storm Station's own record, up to 7 days, in tenths: 0 to 9 per cent, 2; 10 to 19 per cent, 8; 20 to 29 per cent, 28; 30 to 39 per cent, 5; 40 to 49 per cent, 83; 50 to 59 per cent, 144; 60 to 69 per cent, 25; 70 to 79 per cent, 91; 80 to 89 per cent, 143; 90 to 99 per cent, 339; 100 per cent, 525. Grafton received 98.8 per cent, 332 of 336 scheduled reports, rank 509 of 1,393.WHERE IT RANKS IN ILLINOIS, Oct 16THIS ONE: 98.8%, 332 OF 336, RANK 509 OF 1,393PER CENT OF SCHEDULED REPORTS RECEIVEDIN STORM STATION'S OWN RECORD, UP TO 7 DAYS1101000 to 9210 to 19820 to 292830 to 39540 to 498350 to 5914460 to 692570 to 799180 to 8914390 to 99339100525STATIONS, LOG SCALE
Chart of Grafton's rank in Illinois by how it reported, day by day, from 2026-09-26 to 2026-10-16: 2026-09-26 rank 295 of 415; 2026-09-27 rank 313 of 417; 2026-09-28 rank 363 of 517; 2026-09-29 rank 339 of 535; 2026-09-30 rank 335 of 540; 2026-10-01 rank 341 of 542; 2026-10-02 rank 568 of 1,103; 2026-10-03 rank 568 of 1,104; 2026-10-04 rank 454 of 1,162; 2026-10-05 rank 408 of 1,318; 2026-10-06 rank 415 of 1,354; 2026-10-07 rank 393 of 1,449; 2026-10-08 rank 385 of 1,399; 2026-10-09 rank 370 of 1,364; 2026-10-10 rank 358 of 1,364; 2026-10-11 rank 333 of 1,359; 2026-10-12 rank 372 of 1,354; 2026-10-13 rank 437 of 1,360; 2026-10-14 rank 431 of 1,356; 2026-10-15 rank 489 of 1,375; 2026-10-16 rank 509 of 1,393.ITS RANK IN ILLINOIS, DAY BY DAYRANK, FIRST AT THE TOP1200400600Sep 26Sep 30Oct 4Oct 8Oct 12Oct 16
The ranking these charts were drawn from, as tables
Share of scheduled reports receivedStations
100%525
90 to 99%339
80 to 89%143
70 to 79%91
60 to 69%25
50 to 59%144
40 to 49%83
30 to 39%5
20 to 29%28
10 to 19%8
0 to 9%2
DayRankStations rankedShare received
Oct 16, 20265091,39398.8%
Oct 15, 20264891,37599.4%
Oct 14, 20264311,35699.1%
Oct 13, 20264371,36099.4%
Oct 12, 20263721,35499.4%
Oct 11, 20263331,35999.4%
Oct 10, 20263581,36499.4%
Oct 9, 20263701,36499.4%
Oct 8, 20263851,39998.8%
Oct 7, 20263931,44999.4%
Oct 6, 20264151,35499.4%
Oct 5, 20264081,31899.4%
Oct 4, 20264541,16299.4%
Oct 3, 20265681,10499.0%
Oct 2, 20265681,10399.0%
Oct 1, 202634154298.9%
Sep 30, 202633554099.5%
Sep 29, 202633953599.4%
Sep 28, 202636351799.2%
Sep 27, 202631341798.9%
Sep 26, 202629541597.8%
Precipitation at Grafton, precipitation from 0.00 to 0.94, the latest 0.00, in inches.PRECIPITATIONin0.000.250.500.751.00Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PM
Reports received at Grafton, reports from 1.0 to 2.0, the latest 1.0, in reports.REPORTS RECEIVEDreports00.511.52Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PM
The readings these charts were drawn from, as a table
HourPrecipitation inReports
Thu 15, 10 PM0.001
Thu 15, 9 PM0.002
Thu 15, 8 PM0.002
Thu 15, 7 PM0.002
Thu 15, 6 PM0.002
Thu 15, 5 PM0.001
Thu 15, 4 PM0.002
Thu 15, 3 PM0.002
Thu 15, 2 PM0.012
Thu 15, 1 PM0.042
Thu 15, 12 PM0.942
Thu 15, 11 AM0.002
Thu 15, 10 AM0.762
Thu 15, 9 AM0.032
Thu 15, 8 AM0.102
Thu 15, 7 AM0.002
Thu 15, 6 AM0.002
Thu 15, 5 AM0.002
Thu 15, 4 AM0.002
Thu 15, 3 AM0.002
Thu 15, 2 AM0.002
Thu 15, 1 AM0.002
Thu 15, 12 AM0.002
Wed 14, 11 PM0.002
Precipitation at Grafton, precipitation from 0.00 to 0.94, the latest 0.00, in inches.PRECIPITATIONin0.000.250.500.751.00Fri 9Sat 10Sun 11Mon 12Tue 13Wed 14Thu 15
Reports received at Grafton, reports from 1.0 to 2.0, the latest 1.0, in reports.REPORTS RECEIVEDreports00.511.52Fri 9Sat 10Sun 11Mon 12Tue 13Wed 14Thu 15
The readings these charts were drawn from, as a table
HourPrecipitation inReports
Thu 15, 10 PM0.001
Thu 15, 9 PM0.002
Thu 15, 8 PM0.002
Thu 15, 7 PM0.002
Thu 15, 6 PM0.002
Thu 15, 5 PM0.001
Thu 15, 4 PM0.002
Thu 15, 3 PM0.002
Thu 15, 2 PM0.012
Thu 15, 1 PM0.042
Thu 15, 12 PM0.942
Thu 15, 11 AM0.002
Thu 15, 10 AM0.762
Thu 15, 9 AM0.032
Thu 15, 8 AM0.102
Thu 15, 7 AM0.002
Thu 15, 6 AM0.002
Thu 15, 5 AM0.002
Thu 15, 4 AM0.002
Thu 15, 3 AM0.002
Thu 15, 2 AM0.002
Thu 15, 1 AM0.002
Thu 15, 12 AM0.002
Wed 14, 11 PM0.002
Wed 14, 10 PM0.002
Wed 14, 9 PM0.002
Wed 14, 8 PM0.002
Wed 14, 7 PM0.002
Wed 14, 6 PM0.002
Wed 14, 5 PM0.002
Wed 14, 4 PM0.002
Wed 14, 3 PM0.002
Wed 14, 2 PM0.002
Wed 14, 1 PM0.002
Wed 14, 12 PM0.012
Wed 14, 11 AM0.002
Wed 14, 10 AM0.002
Wed 14, 9 AM0.012
Wed 14, 8 AM0.022
Wed 14, 7 AM0.072
Wed 14, 6 AM0.022
Wed 14, 5 AM0.362
Wed 14, 4 AM0.002
Wed 14, 3 AM0.002
Wed 14, 2 AM0.002
Wed 14, 1 AM0.002
Wed 14, 12 AM0.002
Tue 13, 11 PM0.002
Tue 13, 10 PM0.002
Tue 13, 9 PM0.002
Tue 13, 8 PM0.002
Tue 13, 7 PM0.002
Tue 13, 6 PM0.002
Tue 13, 5 PM0.002
Tue 13, 4 PM0.002
Tue 13, 3 PM0.002
Tue 13, 2 PM0.002
Tue 13, 1 PM0.001
Tue 13, 12 PM0.002
Tue 13, 11 AM0.002
Tue 13, 10 AM0.002
Tue 13, 9 AM0.002
Tue 13, 8 AM0.002
Tue 13, 7 AM0.002
Tue 13, 6 AM0.002
Tue 13, 5 AM0.002
Tue 13, 4 AM0.002
Tue 13, 3 AM0.002
Tue 13, 2 AM0.002
Tue 13, 1 AM0.002
Tue 13, 12 AM0.002
Mon 12, 11 PM0.002
Mon 12, 10 PM0.002
Mon 12, 9 PM0.002
Mon 12, 8 PM0.002
Mon 12, 7 PM0.002
Mon 12, 6 PM0.002
Mon 12, 5 PM0.002
Mon 12, 4 PM0.002
Mon 12, 3 PM0.002
Mon 12, 2 PM0.002
Mon 12, 1 PM0.002
Mon 12, 12 PM0.002
Mon 12, 11 AM0.002
Mon 12, 10 AM0.002
Mon 12, 9 AM0.002
Mon 12, 8 AM0.002
Mon 12, 7 AM0.002
Mon 12, 6 AM0.002
Mon 12, 5 AM0.002
Mon 12, 4 AM0.002
Mon 12, 3 AM0.002
Mon 12, 2 AM0.002
Mon 12, 1 AM0.002
Mon 12, 12 AM0.002
Sun 11, 11 PM0.002
Sun 11, 10 PM0.002
Sun 11, 9 PM0.002
Sun 11, 8 PM0.002
Sun 11, 7 PM0.002
Sun 11, 6 PM0.002
Sun 11, 5 PM0.002
Sun 11, 4 PM0.002
Sun 11, 3 PM0.002
Sun 11, 2 PM0.002
Sun 11, 1 PM0.002
Sun 11, 12 PM0.002
Sun 11, 11 AM0.002
Sun 11, 10 AM0.002
Sun 11, 9 AM0.002
Sun 11, 8 AM0.002
Sun 11, 7 AM0.002
Sun 11, 6 AM0.002
Sun 11, 5 AM0.002
Sun 11, 4 AM0.002
Sun 11, 3 AM0.002
Sun 11, 2 AM0.002
Sun 11, 1 AM0.002
Sun 11, 12 AM0.002
Sat 10, 10 PM0.002
Sat 10, 9 PM0.002
Sat 10, 8 PM0.002
Sat 10, 7 PM0.002
Sat 10, 6 PM0.002
Sat 10, 5 PM0.002
Sat 10, 4 PM0.002
Sat 10, 3 PM0.002
Sat 10, 2 PM0.002
Sat 10, 1 PM0.002
Sat 10, 12 PM0.002
Sat 10, 11 AM0.002
Sat 10, 10 AM0.002
Sat 10, 9 AM0.002
Sat 10, 8 AM0.002
Sat 10, 7 AM0.002
Sat 10, 6 AM0.002
Sat 10, 5 AM0.002
Sat 10, 4 AM0.002
Sat 10, 3 AM0.002
Sat 10, 2 AM0.002
Sat 10, 1 AM0.002
Sat 10, 12 AM0.002
Fri 9, 11 PM0.002
Fri 9, 10 PM0.002
Fri 9, 9 PM0.002
Fri 9, 8 PM0.002
Fri 9, 7 PM0.002
Fri 9, 6 PM0.002
Fri 9, 5 PM0.002
Fri 9, 4 PM0.002
Fri 9, 3 PM0.002
Fri 9, 2 PM0.002
Fri 9, 1 PM0.002
Fri 9, 12 PM0.002
Fri 9, 11 AM0.002
Fri 9, 10 AM0.002
Fri 9, 9 AM0.002
Fri 9, 8 AM0.002
Fri 9, 7 AM0.002
Fri 9, 6 AM0.002
Fri 9, 5 AM0.002
Fri 9, 4 AM0.002
Fri 9, 3 AM0.002
Fri 9, 2 AM0.002
Fri 9, 1 AM0.002
Fri 9, 12 AM0.002
Thu 8, 11 PM0.002
Precipitation at Grafton, precipitation from 0.00 to 1.88, the latest 1.88, in inches.PRECIPITATIONin0.000.501.001.502.00Sep 17Sep 22Sep 27Oct 2Oct 7Oct 12
The readings these charts were drawn from, as a table
DayPrecipitation in
Oct 151.88
Oct 140.49
Oct 130.00
Oct 120.00
Oct 110.00
Oct 100.00
Oct 90.00
Oct 80.00
Oct 70.00
Oct 60.00
Oct 50.00
Oct 40.00
Oct 30.00
Oct 20.00
Oct 10.31
Sep 300.00
Sep 290.00
Sep 280.00
Sep 270.00
Sep 260.03
Sep 250.00
Sep 240.00
Sep 230.00
Sep 220.00
Sep 211.01
Sep 200.00
Sep 190.00
Sep 180.00
Sep 170.00

The instrumentWhat an instrument is FB-INS-001

What it seesMoon and tides FB-CLK-003Hurricane FB-EVT-043Nor'easter FB-EVT-066Flash flood FB-EVT-100Coastal flood FB-EVT-105

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