Every instrument close enough to be worth naming, how far away it is, how high it stands, and what kind of measurement it makes.
What the snow tracker reads here
Every instrument in this state
-in
Snow on the ground
Station charts
Eros Data Center Report
Rank 487 of 806 in South Dakota, 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 score90.7of 100
South Dakota median
93.1the median score of 806 stations
Scoring higher
486stations in South Dakota
Sharing its score
2ranks 487 to 488
Points deducted
9.36.6 arrival, 2.7 forecast check
Counted at the median
Forecast checknot measured at this station; South Dakota median 72.6
BLPS2rank 488; behind on reports received 100% against 98.8%
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 pointsSouth Dakota median 98.2168 of 168 scheduled reports received in 7 days
Arrivalweight 1034.03.4 of 10 pointsSouth Dakota median 86.0half its reports arrived within 43 min
Continuityweight 10100.010.0 of 10 pointsSouth Dakota median 100.0longest silence 65 min, on a schedule of one report every 60 min
Accuracyweight 20100.020.0 of 20 pointsSouth Dakota median 100.0its temperature against the airport station KFSD, 13.3 miles away, over 161 readings: typical difference 2.4 °F beyond a steady offset of -1.1 °F
Instrument checksweight 15100.015.0 of 15 pointsSouth Dakota median 100.00 of 161 readings failed their check against its reference station
Forecast checkweight 10-7.3 of 10 points, at the medianSouth Dakota median 72.6-
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
-0.6 °Fcooler than the airport station KFSD, 13 miles away, on average over 405 readings; typical difference 2.6 °F; also compared with 1 other reference station
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: 168 of 168 scheduled reports received, 100%.
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%
303
90 to 99%
160
80 to 89%
88
70 to 79%
166
60 to 69%
3
50 to 59%
43
40 to 49%
37
30 to 39%
1
20 to 29%
4
10 to 19%
0
0 to 9%
1
Day
Rank
Stations ranked
Share received
Oct 16, 2026
487
806
100.0%
Oct 15, 2026
483
794
100.0%
Oct 14, 2026
479
792
99.4%
Oct 13, 2026
479
787
99.4%
Oct 12, 2026
426
795
99.4%
Oct 11, 2026
380
797
99.4%
Oct 10, 2026
564
796
95.2%
Oct 9, 2026
494
796
95.2%
Oct 8, 2026
641
813
95.2%
Oct 7, 2026
646
834
95.2%
Oct 6, 2026
656
832
95.2%
Oct 5, 2026
656
826
95.0%
Oct 4, 2026
641
792
94.1%
Oct 3, 2026
612
769
99.1%
Oct 2, 2026
614
769
99.1%
Oct 1, 2026
330
590
97.7%
Sep 30, 2026
311
591
98.4%
Sep 29, 2026
211
585
100.0%
Sep 28, 2026
211
563
100.0%
The readings these charts were drawn from, as a table
Hour
Temperature F
Dew point F
Relative humidity %
Wind mph
Wind direction °
Reports
Fri 16, 12 AM
44.1
38.9
82
-
-
1
Thu 15, 11 PM
45.3
36.8
72
20
302
1
Thu 15, 10 PM
45.7
36.5
70
19
301
1
Thu 15, 9 PM
45.7
36.8
71
19
298
1
Thu 15, 8 PM
46.8
37.2
69
19
303
1
Thu 15, 7 PM
46.9
36.9
68
19
300
1
Thu 15, 6 PM
47.8
36.2
64
18
306
1
Thu 15, 5 PM
50.0
39.5
67
21
313
1
Thu 15, 4 PM
50.7
43.7
77
19
314
1
Thu 15, 3 PM
49.1
47.4
94
17
306
1
Thu 15, 2 PM
48.0
46.3
94
10
289
1
Thu 15, 1 PM
47.3
46.8
98
10
310
1
Thu 15, 12 PM
46.8
46.0
97
11
302
1
Thu 15, 11 AM
46.9
45.8
96
9
304
1
Thu 15, 10 AM
46.2
45.9
99
8
329
1
Thu 15, 9 AM
46.0
45.5
98
6
333
1
Thu 15, 8 AM
46.0
45.7
99
4
357
1
Thu 15, 7 AM
45.9
45.6
99
4
13
1
Thu 15, 6 AM
45.9
45.6
99
2
31
1
Thu 15, 5 AM
46.0
45.5
98
3
61
1
Thu 15, 4 AM
46.2
45.1
96
4
47
1
Thu 15, 3 AM
46.6
45.8
97
3
36
1
Thu 15, 2 AM
46.6
45.5
96
2
51
1
The readings these charts were drawn from, as a table
Hour
Temperature F
Dew point F
Relative humidity %
Wind mph
Wind direction °
Reports
Fri 16, 12 AM
44.1
38.9
82
-
-
1
Thu 15, 11 PM
45.3
36.8
72
20
302
1
Thu 15, 10 PM
45.7
36.5
70
19
301
1
Thu 15, 9 PM
45.7
36.8
71
19
298
1
Thu 15, 8 PM
46.8
37.2
69
19
303
1
Thu 15, 7 PM
46.9
36.9
68
19
300
1
Thu 15, 6 PM
47.8
36.2
64
18
306
1
Thu 15, 5 PM
50.0
39.5
67
21
313
1
Thu 15, 4 PM
50.7
43.7
77
19
314
1
Thu 15, 3 PM
49.1
47.4
94
17
306
1
Thu 15, 2 PM
48.0
46.3
94
10
289
1
Thu 15, 1 PM
47.3
46.8
98
10
310
1
Thu 15, 12 PM
46.8
46.0
97
11
302
1
Thu 15, 11 AM
46.9
45.8
96
9
304
1
Thu 15, 10 AM
46.2
45.9
99
8
329
1
Thu 15, 9 AM
46.0
45.5
98
6
333
1
Thu 15, 8 AM
46.0
45.7
99
4
357
1
Thu 15, 7 AM
45.9
45.6
99
4
13
1
Thu 15, 6 AM
45.9
45.6
99
2
31
1
Thu 15, 5 AM
46.0
45.5
98
3
61
1
Thu 15, 4 AM
46.2
45.1
96
4
47
1
Thu 15, 3 AM
46.6
45.8
97
3
36
1
Thu 15, 2 AM
46.6
45.5
96
2
51
1
Thu 15, 1 AM
46.2
44.6
94
2
63
1
Thu 15, 12 AM
47.1
43.4
87
2
116
1
Wed 14, 11 PM
47.5
43.2
85
2
120
1
Wed 14, 10 PM
46.9
41.7
82
3
98
1
Wed 14, 9 PM
46.9
41.4
81
6
79
1
Wed 14, 8 PM
48.2
42.3
80
5
76
1
Wed 14, 7 PM
49.5
42.2
76
6
72
1
Wed 14, 6 PM
50.9
42.2
72
6
67
1
Wed 14, 5 PM
53.1
42.4
67
7
59
1
Wed 14, 4 PM
52.7
42.8
69
5
57
1
Wed 14, 3 PM
51.8
42.0
69
5
54
1
Wed 14, 2 PM
50.5
42.2
73
4
42
1
Wed 14, 1 PM
48.9
42.0
77
4
45
1
Wed 14, 12 PM
49.1
41.9
76
4
49
1
Wed 14, 11 AM
47.7
42.1
81
5
52
1
Wed 14, 10 AM
47.5
42.3
82
6
18
1
Wed 14, 9 AM
45.9
41.0
83
5
34
1
Wed 14, 8 AM
45.5
40.9
84
6
21
1
Wed 14, 7 AM
45.5
40.9
84
6
24
1
Wed 14, 6 AM
45.9
41.3
84
6
25
1
Wed 14, 5 AM
46.2
41.6
84
6
22
1
Wed 14, 4 AM
46.2
41.9
85
8
5
1
Wed 14, 3 AM
45.5
42.1
88
7
14
1
Wed 14, 2 AM
42.3
40.7
94
7
349
1
Wed 14, 1 AM
43.5
40.8
90
6
343
1
Wed 14, 12 AM
44.2
40.6
87
6
12
1
Tue 13, 11 PM
45.9
41.3
84
6
17
1
Tue 13, 10 PM
48.0
42.1
80
8
16
1
Tue 13, 9 PM
48.9
41.7
76
9
342
1
Tue 13, 8 PM
50.2
42.2
74
7
327
1
Tue 13, 7 PM
50.7
41.6
71
5
334
1
Tue 13, 6 PM
55.4
42.6
62
8
343
1
Tue 13, 5 PM
57.4
42.3
57
10
332
1
Tue 13, 4 PM
58.5
41.9
54
10
329
1
Tue 13, 3 PM
59.7
41.5
51
9
333
1
Tue 13, 2 PM
57.7
41.2
54
8
321
1
Tue 13, 1 PM
55.0
41.4
60
5
325
1
Tue 13, 12 PM
54.1
41.4
62
5
359
1
Tue 13, 11 AM
50.4
40.6
69
4
3
1
Tue 13, 10 AM
46.0
40.8
82
5
352
1
Tue 13, 9 AM
44.6
40.7
86
9
349
1
Tue 13, 8 AM
44.8
40.9
86
8
312
1
Tue 13, 7 AM
45.1
40.9
85
7
326
1
Tue 13, 6 AM
45.1
41.2
86
8
323
1
Tue 13, 5 AM
46.0
41.4
84
8
333
1
Tue 13, 4 AM
45.1
42.3
90
8
331
1
Tue 13, 3 AM
46.9
42.9
86
9
315
1
Tue 13, 2 AM
47.5
44.1
88
9
324
1
Tue 13, 1 AM
48.4
45.9
91
14
324
1
Tue 13, 12 AM
49.8
46.1
87
14
305
1
Mon 12, 11 PM
50.4
47.3
89
13
301
1
Mon 12, 10 PM
50.7
46.7
86
12
296
1
Mon 12, 9 PM
51.1
47.1
86
14
294
1
Mon 12, 8 PM
51.4
48.0
88
15
295
1
Mon 12, 7 PM
52.2
49.3
90
13
290
1
Mon 12, 6 PM
54.3
51.1
89
15
293
1
Mon 12, 5 PM
55.2
51.7
88
16
296
1
Mon 12, 4 PM
56.1
52.9
89
17
291
1
Mon 12, 3 PM
64.0
54.4
71
17
280
1
Mon 12, 2 PM
70.5
56.8
62
16
268
1
Mon 12, 1 PM
72.7
57.5
59
8
270
1
Mon 12, 12 PM
70.5
57.3
63
5
243
1
Mon 12, 11 AM
67.3
57.2
70
4
183
1
Mon 12, 10 AM
61.2
55.0
80
4
131
1
Mon 12, 9 AM
53.8
53.0
97
6
72
1
Mon 12, 8 AM
50.5
50.2
99
6
45
1
Mon 12, 7 AM
51.1
50.8
99
6
36
1
Mon 12, 6 AM
51.4
50.6
97
6
36
1
Mon 12, 5 AM
52.0
50.9
96
6
26
1
Mon 12, 4 AM
52.7
51.3
95
5
25
1
Mon 12, 3 AM
53.6
51.9
94
5
22
1
Mon 12, 2 AM
55.0
52.7
92
5
15
1
Mon 12, 1 AM
56.5
53.0
88
4
33
1
Mon 12, 12 AM
58.5
54.0
85
7
22
1
Sun 11, 11 PM
62.8
55.5
77
7
21
1
Sun 11, 10 PM
64.2
55.4
73
6
350
1
Sun 11, 9 PM
67.8
55.6
65
6
328
1
Sun 11, 8 PM
71.1
56.0
59
6
304
1
Sun 11, 7 PM
75.6
54.5
48
5
278
1
Sun 11, 6 PM
79.5
54.4
42
3
262
1
Sun 11, 5 PM
81.5
54.1
39
4
218
1
Sun 11, 4 PM
81.1
53.8
39
6
208
1
Sun 11, 3 PM
82.2
52.6
36
8
209
1
Sun 11, 2 PM
82.0
53.9
38
8
185
1
Sun 11, 1 PM
79.3
52.9
40
8
183
1
Sun 11, 12 PM
76.6
53.0
44
8
183
1
Sun 11, 11 AM
73.4
51.9
47
9
199
1
Sun 11, 10 AM
68.7
52.4
56
8
189
1
Sun 11, 9 AM
64.4
51.9
64
8
166
1
Sun 11, 8 AM
60.1
51.4
73
7
156
1
Sun 11, 7 AM
60.8
51.7
72
6
164
1
Sun 11, 6 AM
58.3
51.1
77
6
157
1
Sun 11, 5 AM
60.6
51.5
72
6
145
1
Sun 11, 4 AM
63.1
51.1
65
7
154
1
Sun 11, 3 AM
64.6
51.3
62
7
157
1
Sun 11, 2 AM
62.6
51.1
66
7
154
1
Sun 11, 1 AM
62.6
50.7
65
7
151
1
Sun 11, 12 AM
65.3
50.1
58
6
142
1
Sat 10, 11 PM
67.3
50.1
54
6
155
1
Sat 10, 10 PM
70.3
49.7
48
7
153
1
Sat 10, 9 PM
72.7
50.1
45
8
153
1
Sat 10, 8 PM
73.0
49.8
44
8
148
1
Sat 10, 7 PM
80.4
49.4
34
8
153
1
Sat 10, 6 PM
85.8
48.9
28
10
170
1
Sat 10, 5 PM
88.3
48.0
25
17
188
1
Sat 10, 4 PM
88.9
47.4
24
20
189
1
Sat 10, 3 PM
89.1
48.7
25
20
182
1
Sat 10, 2 PM
87.8
48.6
26
20
188
1
Sat 10, 1 PM
84.6
50.6
31
19
190
1
Sat 10, 12 PM
81.0
51.5
36
17
192
1
Sat 10, 11 AM
77.5
51.3
40
16
198
1
Sat 10, 10 AM
71.6
52.0
50
14
187
1
Sat 10, 9 AM
67.1
51.8
58
12
171
1
Sat 10, 8 AM
61.2
51.7
71
10
160
1
Sat 10, 7 AM
61.5
52.4
72
9
155
1
Sat 10, 6 AM
62.6
52.7
70
9
159
1
Sat 10, 5 AM
64.6
53.4
67
9
158
1
Sat 10, 4 AM
65.5
53.8
66
9
164
1
Sat 10, 3 AM
67.3
53.8
62
8
169
1
Sat 10, 2 AM
68.9
54.0
59
9
175
1
Sat 10, 1 AM
66.7
54.1
64
9
173
1
Sat 10, 12 AM
64.9
56.0
73
7
162
1
Fri 9, 11 PM
64.8
57.4
77
7
148
1
Fri 9, 10 PM
65.5
58.1
77
6
144
1
Fri 9, 9 PM
66.0
57.8
75
7
139
1
Fri 9, 8 PM
68.0
58.2
71
7
133
1
Fri 9, 7 PM
68.5
58.7
71
7
127
1
Fri 9, 6 PM
74.1
59.3
60
7
133
1
Fri 9, 5 PM
75.7
58.9
56
9
153
1
Fri 9, 4 PM
75.6
58.8
56
11
150
1
Fri 9, 3 PM
75.0
57.2
54
10
151
1
Fri 9, 2 PM
75.6
57.8
54
11
140
1
Fri 9, 1 PM
73.4
56.7
56
11
134
1
Fri 9, 12 PM
70.9
55.8
59
10
129
1
Fri 9, 11 AM
65.8
53.3
64
9
126
1
Fri 9, 10 AM
63.0
52.3
68
10
113
1
Fri 9, 9 AM
54.9
46.8
74
7
94
1
Fri 9, 8 AM
47.5
41.6
80
4
54
1
Fri 9, 7 AM
50.4
45.4
83
6
18
1
Fri 9, 6 AM
51.6
45.0
78
4
84
1
Fri 9, 5 AM
52.7
43.9
72
4
73
1
Fri 9, 4 AM
52.5
41.1
65
5
95
1
Fri 9, 3 AM
53.8
40.2
60
6
78
1
Fri 9, 2 AM
54.5
41.3
61
7
82
1
The readings these charts were drawn from, as a table
Day
High F
Low F
Highest dew point F
Lowest dew point F
Highest humidity %
Lowest humidity %
Strongest gust mph
Oct 16
44.1
44.1
38.9
38.9
82
82
-
Oct 15
50.7
45.3
47.4
36.2
99
64
34
Oct 14
53.1
42.3
43.2
40.6
94
67
13
Oct 13
59.7
44.6
46.1
40.6
91
51
22
Oct 12
72.7
50.4
57.5
46.7
99
59
26
Oct 11
82.2
58.3
56.0
50.1
77
36
17
Oct 10
89.1
61.2
56.0
47.4
73
24
34
Oct 9
75.7
47.5
59.3
40.2
83
54
18
Oct 8
74.1
49.8
44.6
36.4
74
29
14
Oct 7
75.9
48.2
47.1
34.3
88
22
19
Oct 6
85.6
51.3
53.8
39.5
86
20
14
Oct 5
77.5
47.1
46.1
34.4
69
31
23
Oct 4
69.8
42.4
45.5
31.7
87
26
19
Oct 3
70.3
45.9
51.3
36.4
78
41
30
Oct 2
64.8
42.1
38.5
30.0
84
27
15
Oct 1
67.1
50.4
62.8
31.1
96
26
23
Sep 30
75.0
58.3
65.8
58.3
100
60
9
Sep 29
71.6
60.4
66.5
59.7
100
82
17
Sep 28
70.7
61.2
63.9
60.1
100
73
19
Sep 27
70.9
63.1
66.2
62.7
100
77
15
Sep 26
64.8
59.2
63.9
59.2
100
96
22
Sep 25
63.0
57.2
58.9
57.2
100
83
21
Sep 24
60.4
56.7
59.8
51.8
100
78
19
Sep 23
68.4
54.1
56.1
51.9
96
59
24
Sep 22
61.9
52.3
53.6
52.0
100
70
19
Sep 21
54.5
51.6
54.5
51.2
100
90
15
Sep 20
63.3
55.2
58.3
53.5
99
75
21
Sep 19
62.6
57.4
61.7
57.0
100
87
15
Sep 18
67.6
59.5
66.9
59.2
100
97
21
Sep 17
69.4
59.4
62.4
59.4
100
74
16
Station report
Eros Data Center, in 4 sheets
Drawn from its report of Oct 16, 2026, 12:00 AM local time, in the manner of the Field Book, and opened beside the plates that explain each part of it.
44.1 F with a dew point of 38.9 F, 82 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,200 ft up.
At 1,551 ft above sea level, 5 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 28.28 inHg and the temperature at 53.5 F; it reports 44.1 F, 9.4 F colder than standard.
On Oct 16 the noon sun stands 37 degrees above the horizon at 43.74 N, and the day is 10 h 50 min long. Level ground there takes 60 per cent of the noon sunlight a surface facing the sun would.
FB-WAT-002, Fig. CHumidity variables
FB-ENG-011, Fig. AWater vapour as a gas
FB-ENG-005, Fig. ALapse rates and stability
