| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.13 | 3.20 | -0.07 |
| Feb | 2.76 | 2.87 | -0.11 |
| Mar | 3.90 | 4.07 | -0.17 |
| Apr | 3.64 | 3.55 | 0.09 |
| May | 4.28 | 4.29 | -0.01 |
| Jun | 4.29 | 4.28 | 0.01 |
| Jul | 4.41 | 4.21 | 0.20 |
| Aug | 4.18 | 3.94 | 0.24 |
| Sep | 4.44 | 4.43 | 0.01 |
| Oct | 4.19 | 4.20 | -0.01 |
| Nov | 3.44 | 3.29 | 0.15 |
| Dec | 3.73 | 3.91 | -0.18 |
46.39 | 46.24 | 0.15 |