Perthshire

Ranking Statistics

247 score90.9of 100

Mississippi median

95.7the median score of 459 stations

Scoring higher

341stations in Mississippi

Sharing its score

3ranks 342 to 344

Points deducted

9.18.5 arrival, 0.6 forecast check

Counted at the median

Accuracy, instrument checks, forecast checknot measured at this station; Mississippi median 100.0, 100.0, 93.8

Next above

SCOM6rank 341; ahead on 247 score 91.0 against 90.9

Next below

S2035rank 344; behind on median arrival 52 min 31 s against 52 min 34 s

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 35100.035.0 of 35 pointsMississippi median 99.4168 of 168 scheduled reports received in 7 days
2. Arrivalweight 1015.01.5 of 10 pointsMississippi median 86.8half its reports arrived within 53 min
3. Continuityweight 10100.010.0 of 10 pointsMississippi median 100.0longest silence 64 min, on a schedule of one report every 60 min
4. Accuracyweight 20-20.0 of 20 points, at the medianMississippi median 100.0-
5. Instrument checksweight 15-15.0 of 15 points, at the medianMississippi median 100.0-
6. Forecast checkweight 10-9.4 of 10 points, at the medianMississippi median 93.8-

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