| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 1.63 | 1.64 | -0.01 | 
| Feb | 1.70 | 1.74 | -0.04 | 
| Mar | 2.50 | 2.53 | -0.03 | 
| Apr | 3.71 | 3.72 | -0.01 | 
| May | 4.62 | 4.81 | -0.19 | 
| Jun | 4.93 | 4.91 | 0.02 | 
| Jul | 4.10 | 4.03 | 0.07 | 
| Aug | 3.92 | 4.18 | -0.26 | 
| Sep | 3.76 | 3.47 | 0.29 | 
| Oct | 2.86 | 3.02 | -0.16 | 
| Nov | 2.36 | 2.14 | 0.22 | 
| Dec | 2.06 | 2.01 | 0.05 | 
| 38.15 | 38.20 | -0.05 |