| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.64 | 1.68 | -0.04 |
| Feb | 1.71 | 1.89 | -0.18 |
| Mar | 3.24 | 3.17 | 0.07 |
| Apr | 4.47 | 4.16 | 0.31 |
| May | 5.59 | 5.87 | -0.28 |
| Jun | 4.78 | 4.66 | 0.12 |
| Jul | 3.76 | 3.72 | 0.04 |
| Aug | 3.50 | 3.43 | 0.07 |
| Sep | 3.91 | 3.73 | 0.18 |
| Oct | 3.57 | 3.60 | -0.03 |
| Nov | 2.82 | 2.71 | 0.11 |
| Dec | 2.35 | 2.30 | 0.05 |
41.34 | 40.92 | 0.42 |