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
Sioux Falls 14 NNE Report
Rank 509 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 score90.0of 100
South Dakota median
93.1the median score of 806 stations
Scoring higher
508stations in South Dakota
Sharing its score
3ranks 509 to 511
Points deducted
10.07.3 arrival, 2.7 forecast check
Counted at the median
Accuracy, instrument checks, forecast checknot measured at this station; South Dakota median 100.0, 100.0, 72.6
Next above
VGAS2rank 499; ahead on 247 score 90.3 against 90.0
Next below
94085rank 511; behind on median arrival 90 min 51 s against 90 min 52 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.
Reports receivedweight 35100.035.0 of 35 pointsSouth Dakota median 98.284 of 84 scheduled reports received in 7 days
Arrivalweight 1027.02.7 of 10 pointsSouth Dakota median 86.0half its reports arrived within 1.5 h
Continuityweight 10100.010.0 of 10 pointsSouth Dakota median 100.0longest silence 3.1 h, on a schedule of one report every 2 h
Accuracyweight 20-20.0 of 20 points, at the medianSouth Dakota median 100.0-
Instrument checksweight 15-15.0 of 15 points, at the medianSouth Dakota median 100.0-
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 12 min, none at 2 h
Continuity
Full marks for a longest silence of 3 reports or less (6 h), none for 72 (144 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: 84 of 84 scheduled reports received, 100%.
Its schedule is one report every 5 min, 288 in 24 hours. Two reports in the same 5 min 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
509
806
100.0%
Oct 15, 2026
510
794
100.0%
Oct 14, 2026
517
792
100.0%
Oct 13, 2026
510
787
100.0%
Oct 12, 2026
504
795
100.0%
Oct 11, 2026
489
797
100.0%
Oct 10, 2026
475
796
100.0%
Oct 9, 2026
477
796
100.0%
Oct 8, 2026
464
813
100.0%
Oct 7, 2026
479
834
100.0%
Oct 6, 2026
554
832
100.0%
Oct 5, 2026
565
826
100.0%
Oct 4, 2026
597
792
100.0%
Oct 3, 2026
618
769
100.0%
Oct 2, 2026
621
769
100.0%
Oct 1, 2026
152
590
100.0%
Sep 30, 2026
210
591
100.0%
Sep 29, 2026
217
585
100.0%
The readings these charts were drawn from, as a table
Hour
Temperature F
Dew point F
Relative humidity %
Wind mph
Reports
Fri 16, 2 AM
44.6
39.4
82
16
1
Fri 16, 1 AM
44.7
38.2
78
15
12
Fri 16, 12 AM
44.1
38.0
79
14
12
Thu 15, 11 PM
45.6
36.6
-
12
12
Thu 15, 10 PM
46.1
35.7
-
12
12
Thu 15, 9 PM
46.3
35.7
-
11
12
Thu 15, 8 PM
46.9
36.3
-
12
12
Thu 15, 7 PM
47.6
36.0
-
11
12
Thu 15, 6 PM
47.8
36.0
-
11
12
Thu 15, 5 PM
49.4
37.0
-
12
12
Thu 15, 4 PM
50.2
41.2
-
11
12
Thu 15, 3 PM
50.7
47.2
-
10
12
Thu 15, 2 PM
48.7
46.5
-
6
12
Thu 15, 1 PM
48.0
46.5
-
6
12
Thu 15, 12 PM
47.2
45.9
-
6
12
Thu 15, 11 AM
47.0
45.5
-
6
12
Thu 15, 10 AM
46.6
45.5
-
4
12
Thu 15, 9 AM
46.2
45.1
-
3
12
Thu 15, 8 AM
46.2
45.1
-
1
12
Thu 15, 7 AM
46.2
45.1
-
1
12
Thu 15, 6 AM
46.1
45.0
-
1
12
Thu 15, 5 AM
46.1
44.8
-
1
12
The readings these charts were drawn from, as a table
Hour
Temperature F
Dew point F
Relative humidity %
Wind mph
Reports
Fri 16, 2 AM
44.6
39.4
82
16
1
Fri 16, 1 AM
44.7
38.2
78
15
12
Fri 16, 12 AM
44.1
38.0
79
14
12
Thu 15, 11 PM
45.6
36.6
-
12
12
Thu 15, 10 PM
46.1
35.7
-
12
12
Thu 15, 9 PM
46.3
35.7
-
11
12
Thu 15, 8 PM
46.9
36.3
-
12
12
Thu 15, 7 PM
47.6
36.0
-
11
12
Thu 15, 6 PM
47.8
36.0
-
11
12
Thu 15, 5 PM
49.4
37.0
-
12
12
Thu 15, 4 PM
50.2
41.2
-
11
12
Thu 15, 3 PM
50.7
47.2
-
10
12
Thu 15, 2 PM
48.7
46.5
-
6
12
Thu 15, 1 PM
48.0
46.5
-
6
12
Thu 15, 12 PM
47.2
45.9
-
6
12
Thu 15, 11 AM
47.0
45.5
-
6
12
Thu 15, 10 AM
46.6
45.5
-
4
12
Thu 15, 9 AM
46.2
45.1
-
3
12
Thu 15, 8 AM
46.2
45.1
-
1
12
Thu 15, 7 AM
46.2
45.1
-
1
12
Thu 15, 6 AM
46.1
45.0
-
1
12
Thu 15, 5 AM
46.1
44.8
-
1
12
Thu 15, 4 AM
46.4
44.7
-
2
12
Thu 15, 3 AM
46.7
45.1
-
1
12
Thu 15, 2 AM
46.6
44.9
-
1
12
Thu 15, 1 AM
46.5
44.5
-
1
12
Thu 15, 12 AM
47.0
43.7
-
0
12
Wed 14, 11 PM
47.1
42.9
-
0
12
Wed 14, 10 PM
47.3
41.7
-
2
12
Wed 14, 9 PM
47.1
41.4
-
3
12
Wed 14, 8 PM
47.4
41.6
-
3
12
Wed 14, 7 PM
49.2
41.8
-
3
12
Wed 14, 6 PM
50.0
41.6
-
3
12
Wed 14, 5 PM
52.4
41.9
-
5
12
Wed 14, 4 PM
53.7
42.4
-
3
12
Wed 14, 3 PM
53.0
42.3
-
4
12
Wed 14, 2 PM
51.5
42.1
-
3
12
Wed 14, 1 PM
50.2
41.8
-
3
12
Wed 14, 12 PM
49.1
41.6
-
3
12
Wed 14, 11 AM
48.4
41.6
-
3
12
Wed 14, 10 AM
47.4
41.2
-
3
12
Wed 14, 9 AM
46.6
41.0
-
3
12
Wed 14, 8 AM
45.8
40.4
-
3
12
Wed 14, 7 AM
45.8
40.7
-
3
12
Wed 14, 6 AM
46.1
41.0
-
3
12
Wed 14, 5 AM
46.3
41.3
-
3
12
Wed 14, 4 AM
46.5
41.3
-
4
12
Wed 14, 3 AM
46.3
41.6
-
3
12
Wed 14, 2 AM
43.8
40.8
-
3
12
Wed 14, 1 AM
43.1
39.9
-
3
12
Wed 14, 12 AM
43.6
39.9
-
2
12
Tue 13, 11 PM
45.1
40.3
-
2
12
Tue 13, 10 PM
47.2
41.1
-
3
12
Tue 13, 9 PM
48.9
41.2
-
5
12
Tue 13, 8 PM
50.1
41.3
-
3
12
Tue 13, 7 PM
51.1
41.1
-
3
12
Tue 13, 6 PM
53.5
40.8
-
4
12
Tue 13, 5 PM
56.9
41.8
-
6
12
Tue 13, 4 PM
58.7
41.8
-
6
12
Tue 13, 3 PM
59.3
41.5
-
6
12
Tue 13, 2 PM
59.4
41.8
-
5
12
Tue 13, 1 PM
56.8
41.4
-
4
12
Tue 13, 12 PM
54.7
41.1
-
4
12
Tue 13, 11 AM
51.6
41.0
-
3
12
Tue 13, 10 AM
48.1
40.8
-
4
12
Tue 13, 9 AM
45.5
40.7
-
5
12
Tue 13, 8 AM
44.7
40.4
-
5
12
Tue 13, 7 AM
45.1
40.5
-
4
12
Tue 13, 6 AM
45.4
40.5
-
5
12
Tue 13, 5 AM
45.1
40.2
-
4
12
Tue 13, 4 AM
46.1
42.1
-
4
12
Tue 13, 3 AM
47.0
42.2
-
5
12
Tue 13, 2 AM
47.1
43.0
-
5
12
Tue 13, 1 AM
48.2
44.7
-
8
12
Tue 13, 12 AM
49.5
45.1
-
9
12
Mon 12, 11 PM
50.4
46.3
-
8
12
Mon 12, 10 PM
51.0
46.4
-
7
12
Mon 12, 9 PM
51.2
46.3
-
8
12
Mon 12, 8 PM
51.5
46.7
-
9
12
Mon 12, 7 PM
52.0
48.2
-
8
12
Mon 12, 6 PM
53.7
49.6
-
9
12
Mon 12, 5 PM
55.5
50.8
-
9
12
Mon 12, 4 PM
55.8
51.6
-
11
12
Mon 12, 3 PM
60.2
52.8
-
11
12
Mon 12, 2 PM
68.3
55.3
-
11
12
Mon 12, 1 PM
73.7
57.6
-
6
12
Mon 12, 12 PM
72.0
57.6
-
4
12
Mon 12, 11 AM
69.1
57.0
-
3
12
Mon 12, 10 AM
64.3
56.1
-
3
12
Mon 12, 9 AM
56.8
53.9
-
4
12
Mon 12, 8 AM
52.0
50.8
-
4
12
Mon 12, 7 AM
50.7
49.6
-
4
12
Mon 12, 6 AM
50.9
49.6
-
4
12
Mon 12, 5 AM
51.8
50.1
-
3
12
Mon 12, 4 AM
52.3
50.3
-
3
12
Mon 12, 3 AM
53.3
50.9
-
3
12
Mon 12, 2 AM
54.4
51.6
-
2
12
Mon 12, 1 AM
55.8
52.3
-
2
12
Mon 12, 12 AM
57.8
53.1
-
3
12
Sun 11, 11 PM
60.8
54.0
-
2
12
Sun 11, 10 PM
64.4
54.9
-
3
12
Sun 11, 9 PM
66.8
55.1
-
3
12
Sun 11, 8 PM
70.1
55.4
-
3
12
Sun 11, 7 PM
71.2
55.7
-
1
12
Sun 11, 6 PM
75.6
55.0
-
0
12
Sun 11, 5 PM
80.9
54.1
-
2
12
Sun 11, 4 PM
82.0
53.3
-
5
12
Sun 11, 3 PM
81.7
52.7
-
6
12
Sun 11, 2 PM
82.4
53.0
-
6
12
Sun 11, 1 PM
80.6
52.5
-
6
12
Sun 11, 12 PM
78.1
52.1
-
6
12
Sun 11, 11 AM
75.5
51.7
-
6
12
Sun 11, 10 AM
71.6
51.4
-
6
12
Sun 11, 9 AM
67.0
51.9
-
5
12
Sun 11, 8 AM
61.2
51.3
-
3
12
Sun 11, 7 AM
57.3
50.7
-
2
12
Sun 11, 6 AM
57.6
50.5
-
2
12
Sun 11, 5 AM
59.5
50.9
-
2
12
Sun 11, 4 AM
61.9
50.9
-
2
12
Sun 11, 3 AM
62.6
50.8
-
2
12
Sun 11, 2 AM
61.9
50.7
-
2
12
Sun 11, 1 AM
62.0
50.4
-
2
12
Sun 11, 12 AM
62.2
50.1
-
2
12
Sat 10, 11 PM
63.1
49.6
-
2
12
Sat 10, 10 PM
66.7
49.5
-
2
12
Sat 10, 9 PM
70.5
49.6
-
3
12
Sat 10, 8 PM
72.1
49.7
-
3
12
Sat 10, 7 PM
75.4
49.2
-
3
12
Sat 10, 6 PM
83.4
48.2
-
6
12
Sat 10, 5 PM
87.4
47.4
-
12
12
Sat 10, 4 PM
89.2
47.2
-
14
12
Sat 10, 3 PM
89.5
47.3
-
13
12
Sat 10, 2 PM
89.3
47.5
-
14
12
Sat 10, 1 PM
86.8
49.9
-
13
12
Sat 10, 12 PM
83.9
50.7
-
11
12
Sat 10, 11 AM
80.2
50.9
-
11
12
Sat 10, 10 AM
74.8
51.3
-
9
12
Sat 10, 9 AM
69.4
51.3
-
7
12
Sat 10, 8 AM
63.6
51.3
-
5
12
Sat 10, 7 AM
60.1
51.1
-
4
12
Sat 10, 6 AM
62.7
51.8
-
4
12
Sat 10, 5 AM
64.5
52.5
-
5
12
Sat 10, 4 AM
66.1
53.0
-
5
12
Sat 10, 3 AM
67.2
53.2
-
6
12
Sat 10, 2 AM
68.6
53.2
-
6
12
Sat 10, 1 AM
69.3
53.0
-
6
12
Sat 10, 12 AM
66.4
54.0
-
4
12
Fri 9, 11 PM
63.6
56.1
-
3
12
Fri 9, 10 PM
65.2
56.8
-
3
12
Fri 9, 9 PM
66.3
57.3
-
4
12
Fri 9, 8 PM
67.7
57.4
-
4
12
Fri 9, 7 PM
68.1
57.7
-
3
12
Fri 9, 6 PM
71.9
58.2
-
4
12
Fri 9, 5 PM
75.6
58.7
-
5
12
Fri 9, 4 PM
76.7
58.6
-
5
12
Fri 9, 3 PM
76.3
57.9
-
6
12
Fri 9, 2 PM
75.4
56.9
-
6
12
Fri 9, 1 PM
75.0
56.8
-
5
12
Fri 9, 12 PM
71.9
55.9
-
5
12
Fri 9, 11 AM
68.6
54.5
-
5
12
Fri 9, 10 AM
65.0
53.3
-
5
12
Fri 9, 9 AM
58.7
49.5
-
4
12
Fri 9, 8 AM
49.7
43.4
-
3
12
Fri 9, 7 AM
48.3
42.7
-
3
12
Fri 9, 6 AM
51.7
45.2
-
3
12
Fri 9, 5 AM
52.2
43.9
-
3
12
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 %
Precipitation in
Oct 16
44.8
43.7
39.4
37.3
82
76
0.00
Oct 15
52.2
45.0
49.2
35.0
96
61
0.53
Oct 14
54.1
42.4
43.3
39.4
90
64
0.00
Oct 13
60.8
44.2
45.4
39.7
88
50
0.00
Oct 12
74.1
50.0
58.2
45.0
96
57
0.00
Oct 11
83.3
55.6
56.6
49.6
82
36
0.00
Oct 10
89.8
59.5
55.4
46.4
73
23
0.00
Oct 9
77.2
46.9
59.1
39.7
82
51
0.00
Oct 8
74.5
44.4
44.9
38.1
84
30
0.00
Oct 7
76.8
49.1
47.5
32.4
84
22
0.00
Oct 6
85.6
50.2
54.2
38.0
85
19
0.00
Oct 5
78.1
44.6
46.5
34.5
80
30
0.00
Oct 4
70.3
39.2
45.0
31.9
91
25
0.00
Oct 3
71.6
47.1
51.8
36.7
80
39
0.00
Oct 2
66.4
39.7
41.1
30.0
91
27
0.00
Oct 1
67.5
48.0
62.1
30.0
93
26
0.00
Sep 30
75.4
58.3
65.6
57.6
99
55
0.00
Sep 29
72.9
60.4
65.4
58.6
98
75
0.32
Sep 28
72.5
60.4
63.3
58.6
97
68
0.00
Sep 27
71.2
63.1
65.7
61.2
98
73
0.02
Sep 26
64.9
59.2
63.2
58.3
98
93
0.69
Sep 25
63.5
57.4
58.9
56.3
98
81
0.06
Sep 24
60.6
56.8
59.2
50.7
97
76
0.67
Sep 23
70.5
54.5
56.1
50.9
93
56
0.00
Sep 22
63.9
52.7
53.9
51.1
96
67
0.00
Sep 21
55.0
52.0
53.7
50.2
97
87
0.75
Sep 20
63.5
54.9
57.9
52.3
96
73
0.50
Sep 19
63.3
57.7
61.3
55.9
98
83
0.00
Sep 18
68.2
58.8
67.0
57.4
98
94
0.76
Sep 17
70.2
59.5
62.0
58.9
98
73
0.07
Station report
Sioux Falls 14 NNE, in 5 sheets
Drawn from its report of Oct 16, 2026, 2:00 AM local time, in the manner of the Field Book, and opened beside the plates that explain each part of it.
44.6 F with a dew point of 39.4 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 1,594 ft above sea level, 6 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 28.24 inHg and the temperature at 53.3 F; it reports 44.6 F, 8.7 F colder than standard.
On Oct 16 the noon sun stands 37 degrees above the horizon at 43.73 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.