| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 6.47 | 5.96 | 0.51 |
| Feb | 4.94 | 4.62 | 0.32 |
| Mar | 5.19 | 4.75 | 0.44 |
| Apr | 4.27 | 3.63 | 0.64 |
| May | 2.91 | 2.63 | 0.28 |
| Jun | 1.60 | 1.43 | 0.17 |
| Jul | 0.35 | 0.38 | -0.03 |
| Aug | 0.45 | 0.38 | 0.07 |
| Sep | 1.51 | 1.41 | 0.10 |
| Oct | 3.75 | 3.39 | 0.36 |
| Nov | 6.51 | 6.11 | 0.40 |
| Dec | 7.62 | 7.21 | 0.41 |
45.57 | 41.90 | 3.67 |