| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.59 | 3.51 | 0.08 |
| Feb | 3.02 | 2.98 | 0.04 |
| Mar | 4.02 | 3.95 | 0.07 |
| Apr | 3.63 | 3.65 | -0.02 |
| May | 3.83 | 3.63 | 0.20 |
| Jun | 4.48 | 4.60 | -0.12 |
| Jul | 4.89 | 4.88 | 0.01 |
| Aug | 4.74 | 4.78 | -0.04 |
| Sep | 4.94 | 5.29 | -0.35 |
| Oct | 3.51 | 3.64 | -0.13 |
| Nov | 3.42 | 3.34 | 0.08 |
| Dec | 3.50 | 3.46 | 0.04 |
47.57 | 47.71 | -0.14 |