MIL-HDBK-1003/13A
Table 3-3. DHW Temperature at Source in Selected Locations (U.S. Dept HUD,
1977).
(Temperatures in deg. F]
City
Source[a]JanFebMarAprMayJunJulAugSepOctNovDec 
Ri, Re, W 48 48 50 52 57 59 63 75 79 69 59 54 
2.  Miami
W
 70 70 70 70 70 70 70 70 70 70 70 70 
3.  Los Angeles
  Ri, W   50 50 54 63 68 73 74 76 75 69 61 55 
4.  Albuquerque
W
 72 72 72 72 72 72 72 72 72 72 72 72 
5.  Las Vegas
W
 73 73 73 73 73 73 73 73 73 73 73 73 
6.  Denver
Ri
 39 40 43 49 55 60 63 64 73 56 45 37 
7.  Ft. Worth
L
 56 49 57 70 75 81 79 83 81 72 56 46 
8.  Nashville
Ri
 46 46 53 66 63 69 71 75 75 71 58 53 
9.  Washington, DC
Ri
 42 42 52 56 63 67 67 78 79 68 55 56 
10. Salt Lake City
W, C   35 37 38 41 43 47 53 52 48 43 38 37 
11. Seattle
Ri
 39 37 43 45 48 57 60 68 66 57 48 43 
12. Boston
Re
 32 36 39 52 58 71 74 67 60 56 48 45 
13. Chicago
L
 32 32 34 42 51 57 65 67 62 57 45 35 
14. New York City 
Re
 36 35 36 39 47 54 58 60 61 57 48 45 
[a] Abbreviations: C - Creek, L - Lake, Re - Reservoir, Ri - River, W - Well.
99