Drawn as the kind of place it stands at. 99 instruments in Ohio stand at one.
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Every instrument in this state
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Snow on the ground
Station charts
Weather Station at Tappan Lake Report
Rank 668 of 1,605 in Ohio, Oct 17. 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 score94.6of 100
Ohio median
92.1the median score of 1,605 stations
Scoring higher
666stations in Ohio
Sharing its score
13ranks 667 to 679
Points deducted
5.44.6 arrival, 0.9 forecast check
Counted at the median
Forecast checknot measured at this station; Ohio median 91.4
Next above
MWOrank 667; ahead on reports due 504 against 168, the longer record first
Next below
SDFO1rank 678; behind on reports received 100% against 99.4%
Sharing its rank
9other 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.
Reports receivedweight 35100.035.0 of 35 pointsOhio median 85.7168 of 168 scheduled reports received in 7 days
Arrivalweight 1054.15.4 of 10 pointsOhio median 90.8half its reports arrived within 33 min
Continuityweight 10100.010.0 of 10 pointsOhio median 100.0longest silence 65 min, on a schedule of one report every 60 min
Accuracyweight 20100.020.0 of 20 pointsOhio median 100.0its temperature against the airport station KPHD, 12.9 miles away, over 164 readings: typical difference 1.8 °F beyond a steady offset of -0.6 °F
Instrument checksweight 15100.015.0 of 15 pointsOhio median 100.00 of 164 readings failed their check against its reference station
Forecast checkweight 10-9.1 of 10 points, at the medianOhio median 91.4-
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 2.8 °F of its reference, typically, none beyond 9.3 °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
-0.5 °Fcooler than the airport station KPHD, 13 miles away, on average over 277 readings; typical difference 2.1 °F
From Storm Station's own record of every report it heard from this station.
Against its reference: each temperature this station reports is compared with the nearest airport or climate reference station that reported within half an hour, up to 15 miles away. The figure is its reading less the reference's, on average, as both were reported; the typical difference is the root mean square. The difference in height is shown where both heights are known.
Its schedule is one report every hour, 24 in 24 hours. Two reports in the same hour count as one received.
The ranking these charts were drawn from, as tables
Share of scheduled reports received
Stations
100%
442
90 to 99%
285
80 to 89%
293
70 to 79%
66
60 to 69%
32
50 to 59%
191
40 to 49%
79
30 to 39%
12
20 to 29%
27
10 to 19%
152
0 to 9%
26
Day
Rank
Stations ranked
Share received
Oct 17, 2026
668
1,605
100.0%
Oct 16, 2026
676
1,590
100.0%
Oct 15, 2026
664
1,579
100.0%
Oct 14, 2026
635
1,568
100.0%
Oct 13, 2026
642
1,570
100.0%
Oct 12, 2026
782
1,563
86.3%
Oct 11, 2026
880
1,544
72.0%
Oct 10, 2026
1,025
1,557
57.7%
Oct 9, 2026
1,036
1,557
57.1%
Oct 8, 2026
1,388
1,597
29.1%
Oct 7, 2026
1,423
1,594
14.8%
Station report
Weather Station at Tappan Lake, in 3 sheets
Drawn from the register, in the manner of the Field Book, and opened beside the plates that explain each part of it.
At 945 ft above sea level, 3 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 28.91 inHg and the temperature at 55.6 F.
On Oct 17 the noon sun stands 40 degrees above the horizon at 40.36 N, and the day is 10 h 55 min long. Level ground there takes 65 per cent of the noon sunlight a surface facing the sun would.