Drawn as the kind of place it stands at. 212 instruments in North Carolina stand at one.
What the snow tracker reads here
Every instrument in this state
-in
Snow on the ground
Station charts
Raingage At Fire Station 18 Nr Durham Report
Rank 680 of 2,255 in North Carolina, Oct 16. The 247 rank orders a state's stations by their 247 score out of 100: how reliably they report, how accurate their readings are against a reference station, how their readings pass their checks, and how they stand against the forecast.
Ranking Statistics
247 score98.4of 100
North Carolina median
95.0the median score of 2,255 stations
Scoring higher
676stations in North Carolina
Sharing its score
26ranks 677 to 702
Points deducted
1.61.6 arrival
Counted at the median
Accuracy, instrument checks, forecast checknot measured at this station; North Carolina median 100.0, 100.0, 100.0
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 35100.035.0 of 35 pointsNorth Carolina median 92.6168 of 168 scheduled reports received in 7 days
Arrivalweight 1084.48.4 of 10 pointsNorth Carolina median 95.2half its reports arrived within 18 min
Continuityweight 10100.010.0 of 10 pointsNorth Carolina median 100.0longest silence 69 min, on a schedule of one report every 60 min
Accuracyweight 20-20.0 of 20 points, at the medianNorth Carolina median 100.0-
Instrument checksweight 15-15.0 of 15 points, at the medianNorth Carolina median 100.0-
Forecast checkweight 10-10.0 of 10 points, at the medianNorth Carolina median 100.0-
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 (3 h), none for 72 (72 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
At 339 ft above sea level, 1 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 29.56 inHg and the temperature at 57.8 F.
On Oct 16 the noon sun stands 45 degrees above the horizon at 35.90 N, and the day is 11 h 07 min long. Level ground there takes 71 per cent of the noon sunlight a surface facing the sun would.