| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.59 | 3.39 | 0.20 |
| Feb | 3.01 | 2.89 | 0.12 |
| Mar | 3.93 | 3.87 | 0.06 |
| Apr | 3.57 | 3.52 | 0.05 |
| May | 3.70 | 3.50 | 0.20 |
| Jun | 4.56 | 4.54 | 0.02 |
| Jul | 5.05 | 4.92 | 0.13 |
| Aug | 4.81 | 4.91 | -0.10 |
| Sep | 4.95 | 5.15 | -0.20 |
| Oct | 3.46 | 3.58 | -0.12 |
| Nov | 3.43 | 3.33 | 0.10 |
| Dec | 3.47 | 3.45 | 0.02 |
47.53 | 47.05 | 0.48 |