| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.67 | 4.57 | 0.10 |
| Feb | 4.74 | 4.67 | 0.07 |
| Mar | 4.97 | 4.63 | 0.34 |
| Apr | 3.82 | 3.90 | -0.08 |
| May | 3.55 | 3.65 | -0.10 |
| Jun | 4.48 | 4.61 | -0.13 |
| Jul | 4.41 | 4.56 | -0.15 |
| Aug | 4.58 | 4.46 | 0.12 |
| Sep | 3.97 | 3.83 | 0.14 |
| Oct | 3.51 | 3.46 | 0.05 |
| Nov | 3.95 | 3.98 | -0.03 |
| Dec | 4.63 | 4.61 | 0.02 |
51.28 | 50.93 | 0.35 |