Chicago River at Deerfield

Ranking Statistics

247 score97.5of 100

Illinois median

95.9the median score of 1,393 stations

Scoring higher

519stations in Illinois

Sharing its score

9ranks 520 to 528

Points deducted

2.51.4 arrival, 0.6 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

RPJrank 522; ahead on reports received 99.2% against 98.3%

Next below

MLNI2rank 524; behind on reports received 98.3% against 98.2%

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 3598.434.4 of 35 pointsIllinois median 99.1661 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.