| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.54 | 3.70 | -0.16 |
| Feb | 2.73 | 3.04 | -0.31 |
| Mar | 4.12 | 4.19 | -0.07 |
| Apr | 3.97 | 4.17 | -0.20 |
| May | 4.04 | 4.32 | -0.28 |
| Jun | 4.64 | 5.08 | -0.44 |
| Jul | 4.55 | 4.64 | -0.09 |
| Aug | 4.36 | 4.63 | -0.27 |
| Sep | 4.31 | 4.57 | -0.26 |
| Oct | 4.56 | 4.83 | -0.27 |
| Nov | 3.47 | 3.73 | -0.26 |
| Dec | 4.36 | 4.67 | -0.31 |
48.65 | 51.57 | -2.92 |