Deerfield - NB Chicago River

Ranking Statistics

247 score97.4of 100

Illinois median

95.9the median score of 1,393 stations

Scoring higher

528stations in Illinois

Sharing its score

5ranks 529 to 533

Points deducted

2.61.4 arrival, 0.7 reports received, 0.5 forecast check

Counted at the median

Accuracy, instrument checks, forecast checknot measured at this station; Illinois median 100.0, 100.0, 94.7

Next above

SMLI2rank 524; ahead on 247 score 97.5 against 97.4

Next below

ALTI2rank 531; behind on reports received 98.0% against 97.9%

Sharing its rank

1other 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 3598.134.3 of 35 pointsIllinois median 99.1659 of 672 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 45 min, on a schedule of one report every 15 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.