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USGS Daily Statistics for the Nation

The statistics generated from this site are based on approved daily-mean data and may not match those published by the USGS in official publications. The user is responsible for assessment and use of statistics from this site. For more details on why the statistics may not match, click here.

USGS 06169500 Rock Creek bl Horse Creek nr int'l boundary


Valley County, Montana
Hydrologic Unit Code 10050015
Latitude  48°58'09.75", Longitude 106°50'23.43" NAD83
Drainage area 322  square miles
Gage datum 2,530 feet above NAVD88
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00060, Discharge, cubic feet per second,
Day of
month
Mean of daily mean values for each day for 39 - 62 years of record in, ft3/s   (Calculation Period 1955-10-01 -> 2018-09-30)

Calculation period restricted by USGS staff due to special conditions at/near site
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1 0.81 0.63 14 125 21 24 13 3.1 0.68 2.3 2.9 1.5
2 0.80 0.63 26 88 20 17 9.6 1.9 0.67 2.7 3.4 1.4
3 0.78 0.62 28 64 19 13 13 1.4 0.69 2.6 3.1 1.4
4 0.75 0.58 29 63 18 24 13 1.2 0.67 2.3 2.9 1.4
5 0.72 0.60 49 80 17 20 27 1.4 0.66 4.7 2.7 1.4
6 0.70 0.57 52 131 26 11 19 2.2 0.84 3.4 2.7 1.3
7 0.68 0.58 44 168 41 14 18 1.6 2.4 2.7 2.6 1.3
8 0.70 0.58 32 129 25 27 15 1.1 6.6 2.4 2.6 1.3
9 0.67 0.60 28 127 19 18 7.7 2.0 2.3 2.3 2.6 1.3
10 0.68 0.79 27 127 18 28 8.1 1.5 2.3 2.3 2.4 1.3
11 0.65 1.3 29 125 14 21 14 1.4 3.3 2.3 2.3 1.2
12 0.63 1.6 34 131 15 24 10 1.1 1.9 1.7 2.2 1.2
13 0.63 1.9 55 122 13 17 7.4 1.3 1.6 2.2 2.2 1.2
14 0.63 1.9 55 121 13 20 6.0 1.4 1.5 2.3 2.2 1.2
15 0.60 1.6 64 88 12 20 8.6 1.6 1.2 2.3 2.2 1.2
16 0.59 1.6 68 72 12 18 6.0 1.5 1.1 2.3 2.2 1.1
17 0.58 6.4 92 71 11 15 4.3 1.4 1.1 2.5 2.1 1.1
18 0.58 19 87 68 10 21 3.7 1.2 1.0 2.5 2.1 1.1
19 0.60 15 94 56 11 18 4.5 1.0 1.3 2.4 2.0 1.1
20 0.60 14 99 46 12 13 4.4 1.4 2.1 2.4 1.9 1.1
21 0.60 10 89 38 13 13 3.8 3.0 3.0 2.3 1.8 1.0
22 0.63 11 86 45 15 14 3.1 1.4 3.0 2.3 1.8 1.0
23 0.65 7.2 101 47 14 13 2.4 1.0 2.1 2.3 1.8 0.99
24 0.65 6.1 119 45 28 15 2.2 1.2 2.1 2.3 1.8 0.95
25 0.65 5.1 114 40 19 17 2.2 2.4 2.2 2.3 1.7 0.90
26 0.65 4.8 111 40 18 13 13 2.3 2.2 2.3 1.7 0.91
27 0.67 4.5 121 36 15 10 4.5 1.5 2.4 2.3 1.6 0.91
28 0.67 13 109 33 36 12 3.5 1.3 1.8 2.3 1.6 0.89
29 0.63 40 125 29 36 26 6.1 1.0 1.5 2.3 1.6 0.89
30 0.64   157 24 17 24 5.5 0.89 1.6 2.4 1.5 0.88
31 0.63   162   20   3.2 0.78   2.5   0.86