| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.32 | 3.10 | 0.22 |
| Feb | 2.67 | 2.47 | 0.20 |
| Mar | 3.80 | 3.66 | 0.14 |
| Apr | 3.74 | 3.58 | 0.16 |
| May | 3.88 | 3.94 | -0.06 |
| Jun | 4.39 | 4.49 | -0.10 |
| Jul | 4.55 | 4.62 | -0.07 |
| Aug | 4.39 | 4.19 | 0.20 |
| Sep | 4.80 | 4.71 | 0.09 |
| Oct | 4.22 | 4.11 | 0.11 |
| Nov | 3.28 | 3.14 | 0.14 |
| Dec | 3.68 | 3.59 | 0.09 |
46.72 | 45.60 | 1.12 |