Weather Data - Hours available for evaporative cooling:


 Location: Los Angeles, CA      Elev: 97    Lat: 33/56N  Long:118/24W

Mean Frequency of occurrence of Dry Bulb Temperature with Mean Coincident Wet Bulb Temperature for each Dry Bulb Temperature Range:

                               ASHRAE  design Dry Bulb and Mean Coincident Wet Bulb:
                          
   1% Scale:    2.5% Scale:    5% Scale:            Design Wet Bulb:
                           Db       Wb       Db      Wb        Db      Wb           1%     2.5%     5%
                           83        68         80       68         77        67           70       69         68
  
Average number of hours within each temperature range and discharge temp. (see notes):

January - April Weather Data

Temp Range: Deg (f) January February March April Total
Low High Mean Hours Wb Tout Hours Wb Tout Hours Wb Tout Hours Wb Tout  
115 120 117.5                          
110 114 112                          
105 109 107                          
100 104 102                          
95 99 97                          
90 94 92                          
85 89 87       1 59 59.7 1 56 57.6 1 62 63.3 3.0
80 84 82 3 57 57.5 2 57 57.8 3 56 57.3 4 62 63.0 12.0
75 79 77 7 55 55.6 6 56 56.8 6 55 56.1 8 61 61.8 27.0
70 74 72 17 54 54.7 16 54 54.9 17 56 56.8 25 59 59.7 75.0
65 69 67 34 53 53.7 40 53 54.0 50 55 55.6 66 58 58.5 190.0
60 64 62 89 52 52.5 107 53 53.5 131 54 54.4 183 55 55.4 510.0
55 59 57 204 51 51.3 214 52 52.3 248 52 52.3 295 53 53.2 961.0
50 54 52 210 48 48.2 181 48 48.2 206 49 49.2 119 50 50.1 716.0
45 49 47 124 43 43.2 84 43 43.2 70 44 44.2 18 45 45.1 296.0
40 44 42 48 39 39.2 20 38 38.2 11 40 40.1       11.0
35 39 37 9 33 33.2 1 34 34.2 1 37 37.0        
30 34 32                          
Total hours Temp out over 40(f) 688    651     743   719 Total hours for this period 2801.0

Note: 1.  Db = Dry Bulb(f) temperature, Wb = Mean coincident wet bulb temp (f).  Tout = Discharge Temperature (f).   Only hours where discharge temp is over 400(f) is included in total hours available for evaporative cooling.

May - August Weather Data

Temp Range: Deg (f) May June July August Total
Low High Mean Hours Wb Tout Hours Wb Tout Hours Wb Tout Hours Wb Tout  
115 120 117.5                          
110 114 112                          
105 109 107                          
100 104 102                          
95 99 97                          
90 94 92                          
85 89 87 1 58 59.5 1 64 65.2 3 68 69.0 1 70 70.9 6.0
80 84 82 2 57 58.3 1 66 66.8 16 69 69.7 16 69 69.7 35.0
75 79 77 7 60 60.9 23 65 65.6 71 67 67.5 78 67 67.5 179.0
70 74 72 38 61 61.6 81 63 63.5 179 65 65.4 178 65 65.4 476.0
65 69 67 128 58 58.7 191 61 61.6 268 63 63.2 288 63 63.2 875.0
60 64 62 263 56 56.3 317 58 58.2 184 59 59.2 165 60 60.1 929.0
55 59 57 251 54 54.2 102 55 55.1 22 56 56.1 7 57 57.0 735.0
50 54 52 50 50 50.1 5 51 51.3             55.0
45 49 47 2 45 45.1                   2.0
40 44 42                          
35 39 37                          
30 34 32                          
Total hours Temp out over 40(f) 742   721   743   742 Total hours for this period 3292.0

September - December Weather Data

Temp Range: Deg (f) September October November December Total
Low High Mean Hours Wb Tout Hours Wb Tout Hours Wb Tout Hours Wb Tout  
115 120 117.5                          
110 114 112                          
105 109 107                          
100 104 102 1 72 73.5 1 67 68.8             2.0
95 99 97 2 69 70.4 1 65 66.6             3.0
90 94 92 1 69 70.2 3 63 64.5 1 60 61.6       5.0
85 89 87 6 68 69.0 4 62 63.3 4 59 60.4       14.0
80 84 82 21 68 68.7 13 62 63.0 10 56 57.3 5 56 57.3 49.0
75 79 77 63 66 66.6 26 63 63.7 20 56 57.1 10 54 55.2 119.0
70 74 72 144 64 64.4 84 62 62.5 35 57 57.8 21 53 54.0 284.0
65 69 67 230 62 62.3 198 61 61.3 88 56 56.6 48 53 53.7 564.0
60 64 62 221 60 60.1 264 58 58.2 192 55 55.4 128 53 53.5 1369.0
55 59 57 30 56 56.1 127 55 55.1 215 52 52.3 226 52 52.3 598.0
50 54 52       22 50 50.1 115 48 48.2 190 48 48.2 349.0
45 49 47             37 43 43.2 91 43 43.2 128.0
40 44 42             4 38 38.2 21 38 38.2 25.0
35 39 37                   2 32 32.3 2.0
30 34 32                          
Total hours Temp out over 40(f) 719   743   717   719 Total hours for this period 2913.0
Total hours available for evaporative cooling  

Data published by Premier Industries, Inc., in part from data contained in EcoDyne's Weather Data Handbook no longer in print.  Premier Industries, Inc., provides these data for informational use only.  All reasonable precautions have been taken to maintain integrity in these data however  Premier Industries will not be responsible for it's accuracy.  Any responsibility for the use of this information shall be borne by the user.