San Diego Precipitation Page

All-California station list

Entries show station weight (percent), station latitude (degrees N), station longitude (degrees E), and station name for each of the 96 stations in the index.

  1  0.02 34.148 -118.144 PASADENA           
  2  0.03 32.700 -117.200 NORTH ISLAND NAS   
  3  0.03 34.005 -118.414 CULVER CITY        
  4  0.04 33.938 -118.389 LOS ANGELES INTL AP
  5  0.05 34.182 -118.138 ALTADENA           
  6  0.05 34.106 -118.100 SAN GABRIEL FIRE DE
  7  0.06 34.051 -118.235 LOS ANGELES DWTN US
  8  0.07 32.767 -115.562 EL CENTRO 2 SSW    
  9  0.07 37.771 -122.427 SAN FRANCISCO DWTN 
 10  0.09 33.812 -118.146 LONG BCH DAUGHERTY 
 11  0.09 33.602 -117.880 NEWPORT BEACH HARBO
 12  0.11 33.628 -116.160 THERMAL FCWOS      
 13  0.12 33.231 -116.414 BORREGO DESERT PARK
 14  0.13 32.734 -117.183 SAN DIEGO WSO AP   
 15  0.15 33.744 -117.867 SANTA ANA FIRE STN 
 16  0.16 33.571 -116.077 MECCA FIRE STN     
 17  0.17 32.849 -115.567 IMPERIAL           
 18  0.19 34.744 -118.724 SANDBERG           
 19  0.19 34.008 -118.490 SANTA MONICA PIER  
 20  0.20 33.210 -117.395 OCEANSIDE MARINA   
 21  0.21 36.997 -119.707 FRIANT GOVERNMENT C
 22  0.22 37.477 -122.239 REDWOOD CITY       
 23  0.26 37.889 -121.226 STOCKTON AP        
 24  0.26 33.951 -117.388 RIVERSIDE FIRE STN 
 25  0.26 39.091 -120.948 COLFAX             
 26  0.26 33.619 -114.714 BLYTHE ASOS        
 27  0.27 33.828 -116.510 PALM SPRINGS       
 28  0.28 37.874 -122.261 BERKELEY           
 29  0.29 34.231 -118.071 MT WILSON CBS      
 30  0.30 39.389 -120.094 BOCA               
 31  0.31 36.780 -119.719 FRESNO YOSEMITE INT
 32  0.34 34.092 -117.881 COVINA CITY YRD FC3
 33  0.34 37.692 -121.769 LIVERMORE          
 34  0.35 33.237 -116.761 HENSHAW DAM        
 35  0.37 34.329 -118.401 PACOIMA DAM FC33A-E
 36  0.39 39.010 -120.845 FORESTHILL RANGER S
 37  0.39 37.999 -121.318 STOCKTON FIRE STA 4
 38  0.41 41.796 -124.215 CRESCENT CITY 3 NNW
 39  0.43 33.757 -116.707 IDYLLWILD FIRE DEPT
 40  0.44 35.628 -120.686 PASO ROBLES        
 41  0.47 37.406 -122.048 MOFFETT FEDERAL AIR
 42  0.48 36.954 -120.038 MADERA             
 43  0.48 39.806 -120.186 VINTON             
 44  0.50 37.624 -120.951 MODESTO AP         
 45  0.50 34.588 -118.094 PALMDALE           
 46  0.52 37.879 -121.930 MT DIABLO JUNCTION 
 47  0.53 38.556 -121.417 SACRAMENTO 5ESE    
 48  0.54 34.767 -114.619 NEEDLES AP         
 49  0.54 37.286 -120.512 MERCED             
 50  0.55 36.664 -121.608 SALINAS AP         
 51  0.55 38.507 -121.495 SACRAMENTO AP ASOS 
 52  0.55 38.933 -120.801 GEORGETOWN RS      
 53  0.58 39.805 -120.472 PORTOLA            
 54  0.58 34.053 -117.189 REDLANDS           
 55  0.60 33.378 -116.840 PALOMAR MTN OBSVTRY
 56  0.60 40.458 -121.866 VOLTA PH           
 57  0.61 37.585 -120.267 EXCHEQUER DAM      
 58  0.64 34.833 -118.865 LEBEC              
 59  0.65 34.705 -118.424 FAIRMONT           
 60  0.70 36.316 -119.637 HANFORD 1 S        
 61  0.72 37.957 -122.544 KENTFIELD          
 62  0.77 35.434 -119.054 BAKERSFIELD AP     
 63  0.83 39.168 -120.143 TAHOE CITY         
 64  0.85 35.670 -120.628 PASO ROBLES MUNI AP
 65  0.87 40.346 -121.609 MINERAL            
 66  0.89 35.160 -120.683 PISMO BEACH        
 67  0.90 36.247 -121.780 BIG SUR STN        
 68  0.94 37.967 -120.387 SONORA             
 69  0.98 38.907 -121.084 AUBURN             
 70  1.04 34.426 -119.843 SANTA BARBARA MUNI 
 71  1.07 37.371 -118.358 BISHOP AP          
 72  1.12 39.247 -121.001 NEVADA CITY        
 73  1.15 39.691 -121.821 CHICO UNIV FARM    
 74  1.17 34.854 -116.786 DAGGETT AP         
 75  1.20 36.482 -121.182 PINNACLES NM       
 76  1.23 39.563 -120.824 DOWNIEVILLE        
 77  1.26 40.152 -122.254 RED BLUFF MUNI AP  
 78  1.35 32.990 -116.587 CUYAMACA           
 79  1.39 38.431 -122.865 GRATON             
 80  1.42 39.872 -121.611 DE SABLA           
 81  1.63 37.233 -119.510 NORTH FORK RS      
 82  1.76 40.541 -121.577 MANZANITA LAKE     
 83  1.79 39.586 -122.534 STONY GORGE RSVR   
 84  1.81 38.758 -120.503 PACIFIC HOUSE      
 85  1.92 39.563 -121.108 STRAWBERRY VALLEY  
 86  2.04 41.493 -120.553 ALTURAS            
 87  2.44 40.170 -121.088 CANYON DAM         
 88  2.52 38.573 -122.441 ANGWIN PAC UNION CO
 89  3.27 41.845 -123.965 GASQUET RS         
 90  3.30 38.277 -120.311 CALAVERAS BIG TREES
 91  3.37 37.750 -119.590 YOSEMITE PARK HQ   
 92  4.01 39.147 -123.210 UKIAH              
 93  4.87 36.491 -118.825 ASH MTN            
 94  5.39 40.714 -122.416 SHASTA DAM         
 95  9.30 41.309 -123.532 ORLEANS            
 96  9.89 40.987 -121.977 PIT RIVER PH 5     

The station weight is the product of two terms. 1) the fraction of area the station represents in the total area of interest. So, for example, a station that is located near to another station will have less influence on the final total, while a station that is far from any other station will have more influence. 2) The average annual precipitation at that station, so that a wet station contributes more to the final index that does a dry station. The final weight is the product of these two terms, normalized so that the sum of all the weights adds up to 100%.

Stations are selected based on two criteria. 1) They must have a relatively long (50 year or more) record with few interruptions. 2) They must be updated nearly every day by the California Nevada River Forecast Center.

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