| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.59 | 2.68 | -0.09 |
| Feb | 2.17 | 2.13 | 0.04 |
| Mar | 2.60 | 2.52 | 0.08 |
| Apr | 3.74 | 3.73 | 0.01 |
| May | 4.25 | 4.24 | 0.01 |
| Jun | 4.60 | 4.33 | 0.27 |
| Jul | 4.32 | 4.25 | 0.07 |
| Aug | 4.14 | 3.93 | 0.21 |
| Sep | 3.21 | 3.16 | 0.05 |
| Oct | 3.17 | 3.12 | 0.05 |
| Nov | 2.92 | 2.96 | -0.04 |
| Dec | 2.36 | 2.39 | -0.03 |
40.07 | 39.44 | 0.63 |