| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.79 | 4.69 | 0.10 |
| Feb | 3.93 | 4.22 | -0.29 |
| Mar | 4.42 | 4.51 | -0.09 |
| Apr | 4.11 | 4.28 | -0.17 |
| May | 4.68 | 4.58 | 0.10 |
| Jun | 4.34 | 4.45 | -0.11 |
| Jul | 3.23 | 3.12 | 0.11 |
| Aug | 3.44 | 3.61 | -0.17 |
| Sep | 4.04 | 4.01 | 0.03 |
| Oct | 4.69 | 4.53 | 0.16 |
| Nov | 4.54 | 4.57 | -0.03 |
| Dec | 4.84 | 4.99 | -0.15 |
51.05 | 51.56 | -0.51 |