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USGS Daily Statistics for Montana

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Questions or concerns about USGS data and data products in Montana and Wyoming can be directed to the Wyoming-Montana Water Science Center Data Management Section.


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 06036805 Firehole River at Old Faithful, YNP


Teton County, Wyoming
Hydrologic Unit Code 10020007
Latitude  44°27'33.60", Longitude 110°49'20.18" NAD83
Drainage area 39.5  square miles
Gage datum 7,352 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 water year of record in, ft3/s   (Calculation Period 2006-10-01 -> 2024-09-30)

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 43 41 40 43 67 163 100 56 52 52 51 46
2 43 42 40 43 68 168 95 56 52 51 52 46
3 43 42 40 43 71 173 92 56 51 52 51 45
4 43 41 40 43 74 178 91 56 52 52 50 45
5 43 41 40 44 80 191 87 56 51 53 51 45
6 44 41 41 44 87 192 86 56 50 52 50 45
7 43 41 40 44 93 191 81 56 50 52 51 45
8 43 41 40 46 93 185 79 56 50 51 51 45
9 43 42 40 48 93 169 78 57 51 51 50 45
10 43 43 40 47 94 162 74 55 50 50 49 45
11 43 42 40 48 94 148 72 54 50 53 48 45
12 43 41 40 48 100 146 71 53 50 51 48 45
13 43 41 40 48 104 159 70 54 50 50 49 45
14 43 41 41 48 108 156 68 54 51 51 48 45
15 43 41 41 46 115 149 67 53 53 53 48 45
16 43 41 42 45 125 149 66 53 52 56 48 44
17 43 41 42 47 134 146 64 52 52 53 48 44
18 42 41 42 49 138 149 63 53 52 51 48 44
19 43 41 42 49 142 141 62 53 53 52 48 44
20 43 41 43 51 142 132 61 54 51 54 47 45
21 42 41 42 54 145 127 60 54 53 50 47 44
22 42 40 43 58 142 126 59 54 53 52 47 44
23 42 40 43 61 147 122 59 53 52 51 47 44
24 42 40 42 60 148 118 58 53 51 52 48 44
25 42 40 42 61 150 115 58 52 50 54 47 44
26 42 41 42 63 149 113 58 52 50 52 46 44
27 42 40 42 64 150 110 57 53 50 50 47 44
28 42 40 42 63 154 108 58 52 50 50 46 44
29 42 39 42 64 157 107 58 52 50 55 46 44
30 41   42 66 157 103 57 51 55 52 46 43
31 42   43   158   56 53   54   43