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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 06178000 Poplar River at international boundary


Daniels County, Montana
Hydrologic Unit Code 10060003
Latitude  48°59'25.03", Longitude 105°41'48.87" NAD83
Drainage area 358  square miles
Gage datum 2,460 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 1930-10-01 -> 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 0. 0.3 20 106 27 24 17 2.1 1.7 2.2 4.7 0.
2 0. 0.3 18 86 25 18 11 4.9 1.4 2.2 4.5 0.
3 0. 0.3 17 80 24 20 9.6 2.4 1.3 2.4 5 0.
4 0. 0.3 18 70 24 21 13 1.6 1.3 2.4 4.9 0.
5 0. 0.3 20 75 22 19 20 1.7 1.3 2.6 4.6 0.
6 0. 0.3 19 134 22 17 11 1.4 1.2 2.7 4.6 0.
7 0. 0.27 18 130 25 19 13 1.3 1.2 2.7 4.6 0.
8 0. 0.27 18 114 24 22 11 2.8 3.4 2.7 4.5 0.
9 0. 0.23 19 107 22 18 8.9 1.7 1.7 2.6 4.8 0.
10 0. 0.2 24 99 21 16 7.3 1.2 1.4 2.6 5 0.
11 0. 0.17 38 102 20 19 11 1.1 1.5 2.6 5.1 0.
12 0. 0.13 53 115 20 19 7.9 1.1 1.9 2.7 5 0.
13 0. 0.13 61 117 20 20 7 1.5 2 2.8 5.1 0.
14 0. 0.2 69 113 19 16 6 1 1.8 3 5.2 0.
15 0. 0.27 73 98 17 17 4.9 1.4 1.6 3.1 5.4 0.
16 0. 6.7 72 73 16 15 4 2.2 1.8 3.2 5.4 0.
17 0. 33 83 66 15 21 3.6 1.3 1.8 3.3 5.3 0.
18 0. 83 78 60 15 23 3.3 1.1 1.8 3.3 5.1 0.
19 0. 117 93 56 15 17 3.6 1.1 2.1 3.4 4.7 0.
20 0. 100 89 42 16 16 5.8 0.99 2.4 3.4 4.1 0.
21 0. 50 114 48 19 54 3.6 2.1 1.8 3.5 4.2 0.
22 0. 38 120 74 22 23 21 1.7 1.7 3.5 4.3 0.
23 0. 28 113 79 18 17 5.3 1.2 1.7 3.6 4.5 0.
24 0. 17 100 59 20 14 3 1.1 1.7 3.6 4.7 0.
25 0. 12 103 44 19 13 2.2 1.3 1.7 3.7 4.5 0.
26 0. 8.4 101 36 17 10 5.2 1.5 1.9 3.7 5.4 0.
27 0. 9 110 35 16 12 11 1.3 1.8 3.8 4.5 0.
28 0. 8.2 108 35 17 16 5.1 1.3 1.8 3.9 4.5 0.
29 0. 70 123 31 25 14 5 1.6 1.9 4 4.5 0.
30 0.   131 30 20 13 3.7 1.3 2.1 4 4.4 0.
31 0.   123   23   2.5 1.6   4   0.