Illinois River at Valley City

Ranking Statistics

247 score97.9of 100

Illinois median

95.9the median score of 1,393 stations

Scoring higher

459stations in Illinois

Sharing its score

41ranks 460 to 500

Points deducted

2.11.4 arrival, 0.5 forecast check, 0.2 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

413028087303601rank 468; ahead on reports received 100% against 99.4%

Next below

KHBI2rank 473; behind on reports due 336 against 168, the longer record first

Sharing its rank

3other stations, equal on every measure

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 3599.434.8 of 35 pointsIllinois median 99.1334 of 336 scheduled reports received in 7 days
2. Arrivalweight 1086.38.6 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.