| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 2.10 | 2.26 | -0.16 | 
| Feb | 1.83 | 1.94 | -0.11 | 
| Mar | 2.58 | 2.63 | -0.05 | 
| Apr | 3.75 | 3.72 | 0.03 | 
| May | 4.52 | 4.50 | 0.02 | 
| Jun | 4.02 | 4.00 | 0.02 | 
| Jul | 4.06 | 3.91 | 0.15 | 
| Aug | 3.61 | 3.60 | 0.01 | 
| Sep | 3.06 | 3.26 | -0.20 | 
| Oct | 3.26 | 3.27 | -0.01 | 
| Nov | 2.81 | 2.73 | 0.08 | 
| Dec | 2.19 | 2.28 | -0.09 | 
| 37.79 | 38.10 | -0.31 |