| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.82 | 3.58 | 0.24 |
| Feb | 3.16 | 3.07 | 0.09 |
| Mar | 3.93 | 3.74 | 0.19 |
| Apr | 3.97 | 3.87 | 0.10 |
| May | 3.93 | 3.73 | 0.20 |
| Jun | 4.11 | 3.83 | 0.28 |
| Jul | 4.57 | 4.16 | 0.41 |
| Aug | 4.32 | 4.06 | 0.26 |
| Sep | 4.01 | 3.88 | 0.13 |
| Oct | 3.17 | 2.93 | 0.24 |
| Nov | 3.40 | 3.19 | 0.21 |
| Dec | 3.72 | 3.70 | 0.02 |
46.11 | 43.74 | 2.37 |