Ranking Statistics
247 score83.4of 100
- New Hampshire median
- 92.0the median score of 385 stations
- Scoring higher
- 233stations in New Hampshire
- Sharing its score
- 2ranks 234 to 235
- Points deducted
- 16.68.2 reports received, 4.9 continuity, 2.4 forecast check, 1.0 arrival, 0.2 accuracy
- Counted at the median
- Accuracy, instrument checks, forecast checknot measured at this station; New Hampshire median 98.9, 100.0, 76.1
- Next below
- DW3142rank 235; behind on reports received 76.5% against 64.2%
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.
- Reports receivedweight 3576.626.8 of 35 pointsNew Hampshire median 94.3772 of 1,008 scheduled reports received in 7 days
- Arrivalweight 1090.39.0 of 10 pointsNew Hampshire median 100.0half its reports arrived within 15 min
- Continuityweight 1051.55.2 of 10 pointsNew Hampshire median 100.0longest silence 2.3 h, on a schedule of one report every 10 min
- Accuracyweight 20-19.8 of 20 points, at the medianNew Hampshire median 98.9-
- Instrument checksweight 15-15.0 of 15 points, at the medianNew Hampshire median 100.0-
- Forecast checkweight 10-7.6 of 10 points, at the medianNew Hampshire median 76.1-
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 (30 min), none for 72 (12 h)
- Accuracy
- Full marks within 1.5 °F of its reference, typically, none beyond 8.0 °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
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: 772 of 1,008 scheduled reports received, 76.5%.