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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 01104460 STONY BROOK AT RT 20 AT WALTHAM, MA


Middlesex County, Massachusetts
Hydrologic Unit Code 01090001
Latitude  42°22'08", Longitude  71°16'16" NAD27
Drainage area 22.0  square miles
Contributing drainage area 22.0  square miles
Gage datum 89.20 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 1997-10-01 -> 2023-09-30)

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 37 54 96 52 32 30 30 24 29 32 38
2 43 37 56 91 49 33 34 31 39 27 29 37
3 42 43 56 87 46 33 33 30 38 26 28 37
4 45 44 52 83 44 35 31 29 32 27 26 34
5 43 44 49 78 44 34 29 29 29 27 25 32
6 41 43 48 71 45 34 29 28 28 28 27 32
7 40 45 51 69 44 38 28 29 33 27 26 33
8 40 44 57 69 42 47 31 31 30 25 26 36
9 41 40 59 64 40 44 35 29 28 27 26 37
10 40 39 56 61 45 39 38 29 28 26 28 43
11 40 40 54 56 45 41 34 27 26 25 27 41
12 43 41 54 57 41 42 36 27 25 25 25 48
13 45 44 54 59 40 44 36 31 27 23 29 48
14 46 45 74 60 46 59 34 29 26 23 32 46
15 47 43 103 57 46 62 31 29 25 34 31 47
16 45 42 97 67 46 55 31 31 25 34 32 42
17 44 43 86 74 46 47 30 29 25 29 37 40
18 44 49 73 67 42 41 32 27 29 25 35 39
19 46 50 66 61 45 39 31 29 30 25 30 36
20 43 46 63 58 44 36 30 30 27 29 32 35
21 39 42 59 56 38 35 32 31 25 26 30 37
22 35 41 59 54 34 34 32 32 24 24 30 38
23 35 43 63 62 31 39 33 31 24 26 32 38
24 44 49 64 63 31 39 43 32 24 25 34 41
25 51 58 61 56 32 38 41 32 22 29 33 44
26 50 62 56 56 35 35 34 30 25 35 32 47
27 46 57 54 61 36 31 31 28 26 34 36 48
28 45 55 54 58 34 33 33 30 28 33 34 47
29 42 36 64 55 34 32 32 32 30 34 33 45
30 40   84 52 32 30 30 27 31 38 34 47
31 38   99   31   30 24   36   44