Location Jul-04 Aug-04 Sep-04 Oct-04 Nov-04 Dec-04 Jan-05 Feb-05 Mar-05 Apr-05 May-05 Jun-05 STD SN POSN
Angwin 0.00 0.00 0.00 5.38 2.99 13.36 6.10 4.69 6.93 1.54 6.40 0.98 48.37 40.67 119%
Antioch 0.00 0.00 0.00 2.75 1.32 5.80 5.21 3.33 2.83 0.82 0.45 0.10 22.61 13.33 170%
Ben Lomond 0.00 0.01 0.23 8.70 4.24 15.49 11.83 8.05 10.36 4.35 2.47 1.26 66.99 47.68 140%
Berkeley 0.00 0.01 0.53 2.85 1.94 8.51 4.33 4.39 4.79 2.17 1.84 1.06 32.42 25.40 128%
Big Sur Station 0.00 0.00 0.09 7.30 2.87 13.71 10.45 11.28 8.52 3.32 1.19 0.33 59.06 43.20 137%
Calistoga 0.00 0.00 0.00 4.19 1.49 11.25 7.50 2.83 5.01 2.77 6.78 1.32 43.14 38.51 112%
Carmel Valley 0.00 0.00 0.05 3.46 0.89 4.75 4.32 4.01 4.86 1.38 0.65 0.26 24.63 17.17 143%
Cazadero  0.00 0.00 0.04 6.61 4.31 18.80 10.30 8.62 15.80 5.26 10.32 1.67 81.73 70.63 116%
Cloverdale 0.00 0.00 T 5.12 4.43 7.61 7.75 n/a 6.63 2.49 5.56 1.47 41.06 42.06 98%
Concord 0.00 0.00 0.09 1.42 1.84 3.18 4.07 3.20 2.53 0.80 1.25 0.15 18.53 15.72 118%
Felton 0.00 0.00 0.32 8.81 3.51 16.22 9.63 7.91 12.62 4.58 2.54 1.16 67.30    
Fort Ross 0.00 0.00 0.00 3.62 N/A 8.50 5.19 4.55 5.46 2.82 5.84 3.54 39.52 37.08 107%
Fremont 0.00 0.00 0.24 2.47 0.97 4.14 2.77 3.66 3.67 1.38 1.31 0.26 20.87    
Gilroy 0.00 0.00 0.16 3.43 0.77 5.96 6.62 4.26 4.67 1.20 0.68 0.67 28.42 20.60 138%
Graton 0.00 0.02 0.08 4.18 2.73 10.86 6.30 4.55 8.08 2.29 5.45 1.03 45.57 40.83 112%
Half Moon Bay 0.00 0.34 0.29 4.60 1.38 8.66 6.21 5.28 5.52 1.69 2.32 1.31 37.60 27.96 134%
Guernville 0.00 0.03 0.25 4.37 2.62 14.48 6.32 5.53 7.63 2.66 7.12 0.91 51.92    
Healdsburg 0.00 0.00 0.05 4.30 6.77 20.15 6.88 5.42 8.49 2.72 9.54 1.39 65.71 42.15 156%
Hollister 0.00 0.00 0.01 2.79 0.76 1.94 5.10 3.13 3.87 0.99 0.64 0.52 19.75 13.61 145%
Kentfield 0.00 0.00 0.17 4.26 2.96 15.85 7.02 6.96 8.18 3.31 5.07 1.01 54.79 47.47 115%
King City 0.00 0.00 0.00 3.38 0.54 5.10 3.14 3.92 1.42 0.77 0.60 0.05 18.92 12.30 154%
L. Berryessa n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a 0.88 0.80 1.68 27.94 6%
Livermore 0.00 0.00 0.58 2.77 0.89 3.01 2.81 3.55 3.41 1.53 1.03 0.05 19.63 14.82 132%
Los Gatos 0.00 0.00 0.04 4.94 0.99 5.85 5.67 4.47 3.87 1.84 1.41 0.32 29.40 22.64 130%
Martinez 0.00 0.00 0.09 2.47 2.94 5.09 4.11 3.48 2.75 1.49 1.35 0.14 23.91 19.58 122%
Monterey 0.00 0.17 0.12 4.17 1.14 7.25 5.26 4.92 4.58 2.00 0.79 0.36 30.76 20.35 151%
Mntry NWSFO 0.00 0.03 0.08 3.34 1.02 4.92 4.44 4.16 4.15 1.56 0.79 0.28 24.77    
Mount Diablo 0.00 0.00 0.28 3.88 1.82 5.28 4.33 4.92 4.16 2.13 3.03 0.54 30.37 23.96 127%
Mount Hamilton 0.00 T 0.42 4.93 1.94 6.77 4.72 5.88 5.82 2.27 1.48 0.76 34.99 23.73 147%
Muir Woods 0.00 0.03 0.75 2.64 2.66 16.18 5.82 6.81 8.16 2.91 2.49 1.55 50.00 37.59 133%
Napa 0.00 0.00 0.14 2.49 2.51 7.93 4.31 3.88 3.42 1.57 2.37 0.90 29.52 26.46 112%
Newark 0.00 0.00 0.21 2.21 0.82 3.85 2.54 3.43 2.86 1.58 1.35 0.23 19.08 14.85 128%
Oakland Musm 0.00 N/A 0.59 3.10 1.69 6.84 3.93 4.24 4.58 1.68 0.79 0.33 27.77 22.94 121%
Occidental 0.00 0.02 0.23 4.24 3.09 13.68 6.39 5.93 10.13 3.26 7.05 2.07 56.09 55.87 100%
Pacifica 4SSE 0.00 0.00 0.12 4.21 1.20 12.79 4.96 6.06 5.88 2.48 2.55 0.90 41.15 29.50 139%
Pacifica 2S 0.00 0.06 0.04 3.38 1.48 9.86 4.37 4.94 4.08 1.97 1.98 0.90 33.06    
Paicines 0.00 0.00 0.00 3.63 N/A 3.87 3.30 3.21 3.97 1.20 0.51 n/a 19.69 15.96 123%
Palo Alto 0.00 0.00 T 2.05 0.57 4.30 2.87 4.31 3.07 1.40 1.28 0.08 19.93 15.71 127%
Panoche 0.00 0.00 0.04 3.21 0.50 3.30 2.51 3.74 1.83 0.54 0.54 0.14 16.35 10.56 155%
Petaluma 0.00 0.00 0.00 4.67 2.33 9.28 4.64 4.35 4.35 1.54 3.04 0.86 35.06 25.85 136%
Pinnacles 0.00 0.00 0.00 3.70 0.55 5.94 6.04 4.41 3.51 1.78 0.39 0.08 26.40 17.35 152%
Priest Valley 0.00 T T 4.26 1.96 8.25 7.13 8.45 5.83 1.41 1.04 0.06 38.39 21.00 183%
Redwood City 0.00 0.00 0.03 4.41 0.64 6.07 4.68 4.47 4.35 1.90 0.75 0.27 27.57 20.16 137%
Richmond 0.00 0.00 0.00 1.82 0.90 3.90 4.14 4.21 3.10 2.36 2.35 1.15 23.93 23.35 102%
Saint Helena 0.00 0.00 0.03 4.53 3.22 8.49 N/A 5.04 3.92 1.77 4.89 0.64 32.53 34.88 93%
Salinas 0.00 0.03 0.03 2.62 0.50 4.97 3.15 3.30 4.67 1.29 0.64 0.25 21.45 15.12 142%
San Clemente Dam 0.00 0.00 0.04 4.13 0.90 6.87 6.15 4.91 4.97 1.73 0.75 0.20 30.65 21.83 140%
San Fran. Ocnsd 0.00 0.00 0.00 N/A N/A 4.12 2.29 3.21 4.01 1.85 1.48 1.11 18.07 19.77 91%
San Fran. Dwntn 0.00 0.00 0.04 2.62 2.07 7.98 4.82 5.19 4.67 2.19 1.32 0.94 31.84 22.28 143%
San Gregorio 0.00 0.18 0.05 3.83 1.81 9.06 5.51 5.02 7.08 2.08 2.23 1.40 38.25 29.52 130%
San Jose 0.00 0.00 0.15 3.04 0.73 4.32 3.47 5.31 3.55 2.52 1.72 0.20 25.01 15.08 166%
San Rafael 0.00 N/A N/A N/A N/A N/A N/A 5.02 7.22 2.07 3.35 0.53 n/a 34.29 n/a
Santa Cruz 0.00 0.06 0.02 5.80 2.20 10.28 5.98 6.26 7.65 3.03 1.34 1.05 43.67 30.67 142%
Santa Rosa 0.00 0.02 0.11 2.98 1.81 10.46 4.12 4.29 5.75 1.61 5.55 0.95 37.65 31.01 121%
Skyline Ridge 0.00 0.01 0.01 5.09 2.56 11.07 7.59 6.23 8.93 3.78 3.09 1.36 49.72    
Sonoma 0.00 0.00 0.11 5.20 2.31 10.43 5.66 4.36 4.78 1.73 3.73 0.34 38.65 30.64 126%
Upr Sn Lndro 0.00 0.00 0.64 4.27 2.10 7.49 4.55 5.33 5.54 2.32 1.80 1.66 35.70 26.30 136%
Vallejo 0.00 0.00 0.00 N/A N/A N/A N/A 2.28 4.59 n/a 2.02 0.06 8.95    
Watsonville 0.00 0.00 0.01 3.51 1.75 4.87 4.22 4.63 5.33 1.59 0.83 0.82 27.56 23.25 119%
Woodside 0.00 0.00 0.00 2.27 1.96 9.60 6.32 5.48 5.33 2.82 3.02 0.66 37.46 28.71 130%
Yountville 0.00 0.00 0.08 3.38 3.05 11.21 6.97 4.88 6.31 n/a 3.20 0.08 39.16    
NOTE: These climatological data are preliminary. For official certified climate data please contact the National Climate Data Center in Ashville North Carolina at 828-271-4800. 
STD = Season to Date | SN = Seasonal Normal | POSN = Percent of Seasonal Normal