Storm Station
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Beside a road

RWIS network, identified by the register

Identifier
SS0325
Latitude
40.90310 N
Longitude
90.66220 W
Elevation
-
Rank
978of 1,393 in Illinois, Oct 16
Observed
4:40 AMCDT, 44 minutes ago
Road surface
dry
Air temperature
47F
Dew point
40F
Relative humidity
78%
Pavement temperature
47F

Ranking Statistics

On the radar over US-34 @ MonmouthReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

Beside a road

Drawn as the kind of place it stands at. 37 instruments in Illinois stand at one.

Station charts

US-34 @ Monmouth Report

Rank 978 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 score89.6of 100

Illinois median
95.9the median score of 1,393 stations
Scoring higher
976stations in Illinois
Sharing its score
2ranks 977 to 978
Points deducted
10.45.0 arrival, 3.1 reports received, 1.8 continuity, 0.5 forecast check
Counted at the median
Forecast checknot measured at this station; Illinois median 94.7
Next above
PPKI2rank 977; ahead on reports received 99.1% against 91.0%
Next below
WHRI2rank 979; behind on 247 score 89.6 against 89.5

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 3591.131.9 of 35 pointsIllinois median 99.1612 of 672 scheduled reports received in 7 days
  2. Arrivalweight 1050.45.0 of 10 pointsIllinois median 96.3half its reports arrived within 35 min
  3. Continuityweight 1081.98.2 of 10 pointsIllinois median 100.0longest silence 80 min, on a schedule of one report every 15 min
  4. Accuracyweight 20100.020.0 of 20 pointsIllinois median 100.0its temperature against the airport station KGBG, 12.1 miles away, over 614 readings: typical difference 2.0 °F beyond a steady offset of +1.4 °F
  5. Instrument checksweight 15100.015.0 of 15 pointsIllinois median 100.00 of 614 readings failed their check against its reference station
  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 (45 min), none for 72 (18 h)
Accuracy
Full marks within 2.7 °F of its reference, typically, none beyond 9.2 °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
978of 1,393 in Illinois, Oct 16
Days reported, 30 days
0 of 30
Time to reach Storm Station
35 min9 in 10 within 40 min
Against its reference, 30 days
+2.6 °Fwarmer than the airport station KGBG, 12 miles away, on average over 1,183 readings; typical difference 4.3 °F

The reports received are counted from the network's own archive of this station's reports. Its 247 rank is counted from Storm Station's own record, which holds less than 7 days of it so far: 612 of 672 scheduled reports received, 91.0%.

Against its reference: each temperature this station reports is compared with the nearest airport or climate reference station that reported within half an hour, up to 15 miles away. The figure is its reading less the reference's, on average, as both were reported; the typical difference is the root mean square. The difference in height is shown where both heights are known.

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. US-34 @ Monmouth received 91.0 per cent, 612 of 672 scheduled reports, rank 978 of 1,393.WHERE IT RANKS IN ILLINOIS, Oct 16THIS ONE: 91.0%, 612 OF 672, RANK 978 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 US-34 @ Monmouth's rank in Illinois by how it reported, day by day, from 2026-10-04 to 2026-10-16: 2026-10-04 rank 1,156 of 1,162; 2026-10-05 rank 1,285 of 1,318; 2026-10-06 rank 1,306 of 1,354; 2026-10-07 rank 1,282 of 1,449; 2026-10-08 rank 1,148 of 1,399; 2026-10-09 rank 912 of 1,364; 2026-10-10 rank 910 of 1,364; 2026-10-11 rank 963 of 1,359; 2026-10-12 rank 978 of 1,354; 2026-10-13 rank 902 of 1,360; 2026-10-14 rank 922 of 1,356; 2026-10-15 rank 995 of 1,375; 2026-10-16 rank 978 of 1,393.ITS RANK IN ILLINOIS, DAY BY DAYRANK, FIRST AT THE TOP15001,0001,500Oct 4Oct 7Oct 10Oct 13Oct 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, 20269781,39391.0%
Oct 15, 20269951,37592.1%
Oct 14, 20269221,35693.4%
Oct 13, 20269021,36094.4%
Oct 12, 20269781,35493.8%
Oct 11, 20269631,35994.9%
Oct 10, 20269101,36493.3%
Oct 9, 20269121,36492.8%
Oct 8, 20261,1481,39966.6%
Oct 7, 20261,2821,44953.4%
Oct 6, 20261,3061,35440.0%
Oct 5, 20261,2851,31826.4%
Oct 4, 20261,1561,16212.2%

Station report

US-34 @ Monmouth, in 2 sheets

Drawn from the register, in the manner of the Field Book, and opened beside the plates that explain each part of it.

1The sun

Contents

On Oct 16 the noon sun stands 40 degrees above the horizon at 40.90 N, and the day is 10 h 56 min long. Level ground there takes 64 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at US-34 @ Monmouth, angles true: on Oct 16 it stands 40 degrees above the horizon, against 73 at the June solstice, 49 at the equinoxes and 26 at the December solstice; the day is 10 h 56 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SS0325FIG. E THE SUN AT US-34 @ MONMOUTHELEVATION LOOKING WEST, SOUTH TO THE LEFT: THE NOON SUN ON THE DAY OF THE REPORT, AND AT THE SOLSTICES AND EQUINOXES; ANGLES TRUETHE STATIONJUNE SOLSTICE 73°EQUINOXES 49°DECEMBER SOLSTICE 26°OCT 16, 40°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 10 H 56 MINLEVEL GROUND TAKES 64 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 40.90 N; THE SUN'S DECLINATION -9.1°TITLEUS-34 @ Monmouth, the sunSTATION REPORT · RWIS SS0325TYPEELEVATIONSCALEANGLES TRUEREVFROM THE REGISTER SHEET 1 of 2DATE2026-10-16IDSR-SS0325-1DRAWN AS linework on paperSOURCES FB-ENG-007

From the Field Book

2The instrument

Contents

A road weather station. Its sensors, as its network builds them.

Elevation of a road weather station, US-34 @ Monmouth, each sensor drawn and labelled with what it read: no reading in the last day.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SS0325FIG. F THE INSTRUMENTELEVATION OF A ROAD WEATHER STATION, EACH SENSOR WITH WHAT IT READTHE ROAD, IN SECTIONPAVEMENT SENSOR, SET IN THE ROAD-PROBE UNDER THE ROAD-AIR TEMPERATURE ON THE TOWER-WIND AT THE TOP OF THE TOWER-SCHEMATIC; THE SPACING BETWEEN SENSORS IS NOT TO SCALETITLEUS-34 @ Monmouth, the instrumentSTATION REPORT · RWIS SS0325TYPEELEVATIONSCALESCHEMATICREVFROM THE REGISTER SHEET 2 of 2DATE2026-10-16IDSR-SS0325-2DRAWN AS linework on paperSOURCES FB-INS-001

From the Field Book

The instrumentWhat an instrument is FB-INS-001Stevenson screen and siting FB-INS-009

What it seesLapse rates and stability FB-ENG-005Water vapour as a gas FB-ENG-011Blizzard FB-EVT-081Ice storm FB-EVT-084Heat wave and heat dome FB-EVT-130Fire weather FB-EVT-139High wind FB-EVT-150Humidity variables FB-WAT-002Fog types FB-WAT-020

Near US-34 @ Monmouth

Gauges

Weather instruments

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