| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.31 | 3.12 | 0.19 |
| Feb | 2.69 | 2.47 | 0.22 |
| Mar | 3.84 | 3.68 | 0.16 |
| Apr | 3.78 | 3.56 | 0.22 |
| May | 3.92 | 3.94 | -0.02 |
| Jun | 4.33 | 4.46 | -0.13 |
| Jul | 4.60 | 4.62 | -0.02 |
| Aug | 4.29 | 4.14 | 0.15 |
| Sep | 4.74 | 4.71 | 0.03 |
| Oct | 4.26 | 4.12 | 0.14 |
| Nov | 3.33 | 3.14 | 0.19 |
| Dec | 3.69 | 3.59 | 0.10 |
46.78 | 45.55 | 1.23 |