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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 -> 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 37 53 94 55 31 30 30 26 30 30 37
2 43 38 56 89 52 32 34 31 39 28 28 36
3 42 43 55 85 48 32 34 30 38 27 27 36
4 44 43 52 82 46 34 32 29 32 27 25 33
5 43 44 50 76 45 34 30 28 29 27 24 31
6 41 42 48 70 46 34 29 28 28 28 26 31
7 40 45 51 68 45 37 28 29 33 27 25 33
8 40 44 56 68 42 46 31 34 30 25 25 36
9 40 40 58 63 40 43 35 33 29 27 26 36
10 39 39 55 60 45 39 39 31 28 26 27 42
11 39 39 54 55 44 40 34 30 27 25 26 40
12 42 41 54 56 40 41 36 29 27 25 25 46
13 45 43 53 58 39 43 36 32 28 23 28 46
14 45 45 77 59 45 57 34 30 28 23 31 45
15 47 42 107 56 44 60 31 30 27 34 30 45
16 45 41 99 66 44 53 31 32 26 32 31 42
17 43 42 87 72 45 46 31 30 26 28 36 41
18 44 48 74 66 41 41 33 30 32 24 34 40
19 45 49 66 60 43 38 31 32 38 24 29 36
20 43 45 63 57 43 36 30 32 32 28 31 35
21 39 41 59 55 41 35 32 33 28 25 29 37
22 36 40 59 52 37 33 33 34 27 23 29 37
23 37 43 62 62 33 38 34 32 26 25 31 40
24 45 48 63 62 32 38 42 33 25 24 33 43
25 51 57 60 56 33 37 41 37 24 28 32 45
26 53 61 55 56 35 34 34 36 27 34 31 46
27 49 56 53 60 36 31 31 32 27 33 34 48
28 47 54 54 58 33 33 33 32 29 32 33 47
29 43 36 63 54 33 32 32 33 31 32 32 44
30 41   83 53 32 29 31 30 33 37 33 46
31 39   97   30   30 27   34   44