| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.53 | 3.63 | -0.10 |
| Feb | 2.88 | 2.90 | -0.02 |
| Mar | 4.16 | 4.10 | 0.06 |
| Apr | 3.70 | 3.63 | 0.07 |
| May | 3.71 | 3.67 | 0.04 |
| Jun | 4.41 | 4.35 | 0.06 |
| Jul | 4.82 | 4.79 | 0.03 |
| Aug | 4.74 | 4.61 | 0.13 |
| Sep | 4.95 | 5.35 | -0.40 |
| Oct | 3.52 | 3.60 | -0.08 |
| Nov | 3.42 | 3.38 | 0.04 |
| Dec | 3.55 | 3.56 | -0.01 |
47.39 | 47.57 | -0.18 |