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
Fort Assiniboine #1 Report
Rank 706 of 1,053 in Montana, 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 score87.1of 100
Montana median
91.1the median score of 1,053 stations
Scoring higher
705stations in Montana
Sharing its score
1no other station
Points deducted
12.96.6 arrival, 3.5 accuracy, 2.1 forecast check, 0.6 reports received
Counted at the median
Forecast checknot measured at this station; Montana median 78.7
TASM8rank 707; behind on 247 score 87.1 against 87.0
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 3598.234.4 of 35 pointsMontana median 98.8165 of 168 scheduled reports received in 7 days
Arrivalweight 1034.03.4 of 10 pointsMontana median 80.4half its reports arrived within 43 min
Continuityweight 10100.010.0 of 10 pointsMontana median 100.0longest silence 2 h, on a schedule of one report every 60 min
Accuracyweight 2082.516.5 of 20 pointsMontana median 86.7its temperature against the airport station KHVR, 4.4 miles away, over 148 readings: typical difference 3.1 °F beyond a steady offset of +1.1 °F
Instrument checksweight 15100.015.0 of 15 pointsMontana median 100.00 of 148 readings failed their check against its reference station
Forecast checkweight 10-7.9 of 10 points, at the medianMontana median 78.7-
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 1.9 °F of its reference, typically, none beyond 8.4 °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
+1.4 °Fwarmer than the airport station KHVR, 4.4 miles away, on average over 404 readings; typical difference 3.4 °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: 165 of 168 scheduled reports received, 98.2%.
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%
338
90 to 99%
405
80 to 89%
69
70 to 79%
133
60 to 69%
25
50 to 59%
43
40 to 49%
29
30 to 39%
0
20 to 29%
11
10 to 19%
0
0 to 9%
0
Day
Rank
Stations ranked
Share received
Oct 16, 2026
706
1,053
98.2%
Oct 15, 2026
681
1,056
99.4%
Oct 14, 2026
671
1,057
98.8%
Oct 13, 2026
657
1,059
99.4%
Oct 12, 2026
656
1,057
98.8%
Oct 11, 2026
662
1,054
98.2%
Oct 10, 2026
726
1,049
94.0%
Oct 9, 2026
722
1,048
94.0%
Oct 8, 2026
697
1,030
94.0%
Oct 7, 2026
652
1,027
94.0%
Oct 6, 2026
667
1,025
94.0%
Oct 5, 2026
660
979
94.3%
Oct 4, 2026
657
898
94.1%
Oct 3, 2026
623
889
99.1%
Oct 2, 2026
626
889
99.1%
Oct 1, 2026
494
802
98.8%
Sep 30, 2026
531
799
98.4%
Sep 29, 2026
444
790
100.0%
Sep 28, 2026
450
768
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, 3 AM
33.3
24.2
69
-
-
1
Fri 16, 2 AM
31.1
24.7
77
6
119
1
Fri 16, 1 AM
31.1
24.4
76
5
141
1
Fri 16, 12 AM
35.2
24.6
65
4
211
1
Thu 15, 11 PM
35.4
25.2
66
9
172
1
Thu 15, 10 PM
36.1
26.2
67
10
176
1
Thu 15, 9 PM
36.1
26.9
69
10
176
1
Thu 15, 8 PM
36.9
26.6
66
10
179
1
Thu 15, 7 PM
41.7
24.9
51
6
172
1
Thu 15, 6 PM
50.0
22.7
34
2
169
1
Thu 15, 5 PM
50.4
23.8
35
2
359
1
Thu 15, 4 PM
50.2
25.6
38
5
354
1
Thu 15, 3 PM
50.4
27.6
41
6
342
1
Thu 15, 2 PM
49.6
28.6
44
7
354
1
Thu 15, 1 PM
47.5
28.8
48
9
22
1
Thu 15, 12 PM
46.2
29.5
52
12
17
1
Thu 15, 11 AM
43.5
29.7
58
16
17
1
Thu 15, 10 AM
41.2
30.3
65
18
17
1
Thu 15, 9 AM
39.7
29.3
66
18
8
1
Thu 15, 8 AM
34.5
27.4
75
7
319
1
Thu 15, 7 AM
37.4
28.2
69
4
293
1
Thu 15, 6 AM
38.3
27.6
65
5
300
1
Thu 15, 5 AM
39.4
27.5
62
9
348
1
Thu 15, 4 AM
41.9
27.3
56
10
350
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, 3 AM
33.3
24.2
69
-
-
1
Fri 16, 2 AM
31.1
24.7
77
6
119
1
Fri 16, 1 AM
31.1
24.4
76
5
141
1
Fri 16, 12 AM
35.2
24.6
65
4
211
1
Thu 15, 11 PM
35.4
25.2
66
9
172
1
Thu 15, 10 PM
36.1
26.2
67
10
176
1
Thu 15, 9 PM
36.1
26.9
69
10
176
1
Thu 15, 8 PM
36.9
26.6
66
10
179
1
Thu 15, 7 PM
41.7
24.9
51
6
172
1
Thu 15, 6 PM
50.0
22.7
34
2
169
1
Thu 15, 5 PM
50.4
23.8
35
2
359
1
Thu 15, 4 PM
50.2
25.6
38
5
354
1
Thu 15, 3 PM
50.4
27.6
41
6
342
1
Thu 15, 2 PM
49.6
28.6
44
7
354
1
Thu 15, 1 PM
47.5
28.8
48
9
22
1
Thu 15, 12 PM
46.2
29.5
52
12
17
1
Thu 15, 11 AM
43.5
29.7
58
16
17
1
Thu 15, 10 AM
41.2
30.3
65
18
17
1
Thu 15, 9 AM
39.7
29.3
66
18
8
1
Thu 15, 8 AM
34.5
27.4
75
7
319
1
Thu 15, 7 AM
37.4
28.2
69
4
293
1
Thu 15, 6 AM
38.3
27.6
65
5
300
1
Thu 15, 5 AM
39.4
27.5
62
9
348
1
Thu 15, 4 AM
41.9
27.3
56
10
350
1
Thu 15, 3 AM
41.9
28.2
58
8
348
1
Thu 15, 2 AM
43.2
27.7
54
4
13
1
Thu 15, 1 AM
43.3
34.9
72
6
328
1
Thu 15, 12 AM
46.2
36.6
69
4
19
1
Wed 14, 11 PM
47.5
35.9
64
5
53
1
Wed 14, 10 PM
49.5
39.4
68
4
78
1
Wed 14, 9 PM
50.0
41.0
71
3
225
1
Wed 14, 8 PM
51.3
41.5
69
7
241
1
Wed 14, 7 PM
54.3
41.6
62
11
236
1
Wed 14, 6 PM
57.6
41.5
55
12
236
1
Wed 14, 5 PM
59.9
41.2
50
14
248
1
Wed 14, 4 PM
57.7
39.7
51
15
258
1
Wed 14, 3 PM
57.7
39.2
50
16
260
1
Wed 14, 2 PM
55.6
37.8
51
18
256
1
Wed 14, 1 PM
50.7
35.6
56
17
248
1
Wed 14, 12 PM
52.9
33.7
48
16
262
1
Wed 14, 11 AM
53.2
31.8
44
19
261
1
Wed 14, 10 AM
43.2
35.5
74
9
303
1
Wed 14, 9 AM
35.2
31.1
85
3
266
1
Wed 14, 8 AM
31.1
28.5
90
3
257
1
Wed 14, 7 AM
30.9
28.6
91
7
246
1
Wed 14, 6 AM
32.5
29.9
90
5
245
1
Wed 14, 5 AM
32.0
29.7
91
5
246
1
Wed 14, 4 AM
37.8
31.9
79
7
263
1
Wed 14, 3 AM
34.7
31.5
88
8
250
1
Wed 14, 2 AM
38.8
32.8
79
6
258
1
Wed 14, 1 AM
33.8
32.2
94
8
239
1
Wed 14, 12 AM
37.8
34.3
87
2
250
1
Tue 13, 11 PM
37.6
34.1
87
1
202
1
Tue 13, 10 PM
40.1
34.4
80
2
227
1
Tue 13, 9 PM
39.9
33.9
79
4
214
1
Tue 13, 8 PM
45.9
34.4
64
4
171
1
Tue 13, 7 PM
48.4
35.1
60
2
213
1
Tue 13, 6 PM
52.7
37.0
55
1
308
1
Tue 13, 5 PM
54.3
36.6
51
5
331
1
Tue 13, 4 PM
53.2
37.9
56
7
331
1
Tue 13, 3 PM
52.5
37.7
57
8
311
1
Tue 13, 2 PM
50.2
35.5
57
8
291
1
Tue 13, 1 PM
48.4
35.1
60
9
289
1
Tue 13, 12 PM
44.8
33.4
64
11
279
1
Tue 13, 11 AM
42.4
34.7
74
13
264
1
Tue 13, 10 AM
39.9
33.6
78
14
262
1
Tue 13, 9 AM
36.0
31.6
84
12
257
1
Tue 13, 8 AM
29.5
27.4
92
10
250
1
Tue 13, 7 AM
27.9
26.4
94
7
268
1
Tue 13, 6 AM
27.5
26.7
97
5
253
1
Tue 13, 5 AM
28.4
27.4
96
3
248
1
Tue 13, 4 AM
28.2
26.9
95
3
242
1
Tue 13, 3 AM
29.1
27.3
93
1
210
1
Tue 13, 2 AM
30.0
28.2
93
2
195
1
Tue 13, 1 AM
30.7
28.9
93
4
131
1
Tue 13, 12 AM
30.6
29.1
94
6
149
1
Mon 12, 11 PM
33.3
30.4
89
4
164
1
Mon 12, 10 PM
33.1
31.0
92
1
216
1
Mon 12, 9 PM
36.0
32.5
87
3
217
1
Mon 12, 8 PM
37.2
32.8
84
5
229
1
Mon 12, 7 PM
37.8
33.4
84
6
235
1
Mon 12, 6 PM
37.8
31.9
79
5
262
1
Mon 12, 5 PM
37.9
31.6
78
6
260
1
Mon 12, 4 PM
38.1
33.1
82
5
260
1
Mon 12, 3 PM
37.9
31.0
76
4
261
1
Mon 12, 2 PM
36.9
33.1
86
3
273
1
Mon 12, 1 PM
35.4
33.3
92
5
273
1
Mon 12, 12 PM
34.9
33.3
94
3
275
1
Mon 12, 11 AM
33.6
33.3
99
2
3
1
Mon 12, 10 AM
33.1
32.8
99
3
104
1
Mon 12, 9 AM
32.2
31.9
99
5
99
1
Mon 12, 8 AM
32.2
32.2
100
2
90
1
Mon 12, 7 AM
32.0
31.7
99
4
93
1
Mon 12, 6 AM
32.0
31.7
99
4
94
1
Mon 12, 5 AM
32.0
31.7
99
6
94
1
Mon 12, 4 AM
32.0
31.7
99
5
81
1
Mon 12, 3 AM
32.2
32.2
100
6
85
1
Mon 12, 2 AM
32.0
31.7
99
3
76
1
Mon 12, 1 AM
32.0
31.7
99
4
86
1
Mon 12, 12 AM
32.0
31.7
99
4
78
1
Sun 11, 11 PM
32.0
31.7
99
5
68
1
Sun 11, 10 PM
32.0
31.7
99
7
74
1
Sun 11, 9 PM
32.0
31.7
99
8
74
1
Sun 11, 8 PM
32.2
31.7
98
8
74
1
Sun 11, 7 PM
33.1
32.3
97
9
78
1
Sun 11, 6 PM
34.0
33.2
97
10
79
1
Sun 11, 5 PM
34.3
33.3
96
10
83
1
Sun 11, 4 PM
34.2
33.4
97
10
82
1
Sun 11, 3 PM
33.8
33.3
98
9
81
1
Sun 11, 2 PM
32.9
32.4
98
9
77
1
Sun 11, 1 PM
32.5
32.0
98
9
79
1
Sun 11, 12 PM
32.5
32.0
98
8
82
1
Sun 11, 11 AM
32.4
32.1
99
8
88
1
Sun 11, 10 AM
32.2
31.9
99
10
95
1
Sun 11, 9 AM
32.2
31.9
99
6
92
1
Sun 11, 8 AM
32.5
32.0
98
4
65
1
Sun 11, 7 AM
35.1
34.1
96
6
26
1
Sun 11, 6 AM
35.4
34.6
97
5
50
1
Sun 11, 5 AM
35.1
34.3
97
3
100
1
Sun 11, 4 AM
34.7
33.9
97
3
116
1
Sun 11, 3 AM
33.6
32.8
97
4
98
1
Sun 11, 2 AM
34.5
33.2
95
5
61
1
Sun 11, 1 AM
36.5
34.4
92
7
52
1
Sun 11, 12 AM
37.8
35.1
90
8
48
1
Sat 10, 11 PM
39.4
35.0
84
8
48
1
Sat 10, 10 PM
39.9
36.0
86
7
40
1
Sat 10, 9 PM
40.5
35.1
81
5
43
1
Sat 10, 8 PM
40.8
37.2
87
5
50
1
Sat 10, 7 PM
41.5
37.3
85
5
61
1
Sat 10, 6 PM
41.7
37.8
86
9
27
1
Sat 10, 5 PM
42.1
38.8
88
10
11
1
Sat 10, 4 PM
42.1
38.5
87
12
11
1
Sat 10, 3 PM
42.6
39.3
88
13
12
1
Sat 10, 2 PM
43.5
39.3
85
13
15
1
Sat 10, 1 PM
45.0
39.8
82
13
8
1
Sat 10, 12 PM
46.0
41.7
85
11
8
1
Sat 10, 11 AM
47.3
41.8
81
10
15
1
Sat 10, 10 AM
47.8
40.3
75
10
17
1
Sat 10, 9 AM
46.8
40.0
77
7
20
1
Sat 10, 8 AM
46.0
39.5
78
2
340
1
Sat 10, 7 AM
46.0
39.2
77
3
358
1
Sat 10, 6 AM
47.3
39.1
73
8
3
1
Sat 10, 5 AM
48.6
39.3
70
8
356
1
Sat 10, 4 AM
50.4
35.3
56
8
341
1
Sat 10, 3 AM
54.0
34.7
48
3
320
1
Sat 10, 2 AM
57.6
34.7
42
5
32
1
Sat 10, 1 AM
53.2
35.0
50
3
154
1
Sat 10, 12 AM
55.6
34.0
44
6
166
1
Fri 9, 11 PM
57.2
31.8
38
3
197
1
Fri 9, 10 PM
61.2
28.7
29
4
99
1
Fri 9, 9 PM
64.4
25.8
23
4
322
1
Fri 9, 8 PM
66.0
24.9
21
4
233
1
Fri 9, 7 PM
68.4
24.5
19
3
264
1
Fri 9, 6 PM
72.7
25.4
17
3
263
1
Fri 9, 5 PM
80.2
24.9
13
5
322
1
Fri 9, 4 PM
83.8
23.7
11
11
329
1
Fri 9, 3 PM
84.9
24.5
11
15
288
1
Fri 9, 2 PM
83.3
25.4
12
16
284
1
Fri 9, 1 PM
81.9
28.0
14
16
290
1
Fri 9, 12 PM
73.0
31.9
22
19
272
1
Fri 9, 11 AM
73.9
29.0
19
16
268
1
Fri 9, 10 AM
64.8
31.8
29
17
259
1
Fri 9, 9 AM
57.4
31.3
37
6
270
1
Fri 9, 8 AM
56.1
30.8
38
10
242
1
Fri 9, 7 AM
53.2
31.8
44
5
255
1
Fri 9, 6 AM
57.0
31.6
38
6
250
1
Fri 9, 5 AM
61.5
30.6
31
7
249
1
Fri 9, 4 AM
63.7
31.7
30
10
242
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
35.2
31.1
24.7
24.2
77
65
12
Oct 15
50.4
34.5
36.6
22.7
75
34
27
Oct 14
59.9
30.9
41.6
28.5
94
44
29
Oct 13
54.3
27.5
37.9
26.4
97
51
19
Oct 12
38.1
32.0
33.4
30.4
100
76
10
Oct 11
37.8
32.0
35.1
31.7
99
90
16
Oct 10
57.6
39.4
41.8
34.0
88
42
20
Oct 9
84.9
50.7
35.1
23.7
55
11
31
Oct 8
74.5
35.6
36.7
29.1
77
23
17
Oct 7
73.2
39.9
35.9
29.6
72
21
12
Oct 6
75.9
41.7
37.6
28.9
68
19
18
Oct 5
84.0
46.9
41.6
23.2
76
12
26
Oct 4
73.6
36.1
43.6
33.4
90
32
13
Oct 3
67.8
43.5
44.2
33.8
89
30
14
Oct 2
77.2
40.1
43.3
37.2
90
27
28
Oct 1
66.9
42.4
41.5
28.5
70
32
10
Sep 30
63.0
44.2
50.3
32.3
90
32
23
Sep 29
73.8
38.8
40.0
18.2
57
23
34
Sep 28
71.2
37.6
36.3
17.0
83
15
18
Sep 27
65.1
32.9
39.7
30.5
94
29
16
Sep 26
63.0
45.3
43.6
21.7
71
21
31
Sep 25
89.8
52.5
48.5
36.0
72
15
36
Sep 24
84.4
46.2
44.7
33.1
72
22
14
Sep 23
82.2
47.5
48.1
33.0
89
18
23
Sep 22
81.0
42.4
51.1
42.1
99
26
14
Sep 21
75.6
41.0
51.7
40.7
99
36
15
Sep 20
72.5
44.2
52.4
41.2
92
46
15
Sep 19
67.3
51.3
49.9
44.5
84
48
13
Sep 18
76.6
47.5
52.8
42.1
98
34
17
Sep 17
76.5
39.9
54.5
38.8
98
40
20
Station report
Fort Assiniboine #1, in 4 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.
31.1 F with a dew point of 24.7 F, 77 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,400 ft up.
At 2,710 ft above sea level, 9 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 27.10 inHg and the temperature at 49.3 F; it reports 31.1 F, 18.2 F colder than standard.
On Oct 16 the noon sun stands 32 degrees above the horizon at 48.48 N, and the day is 10 h 37 min long. Level ground there takes 54 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
