| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.60 | 3.67 | -0.07 |
| Feb | 3.47 | 3.55 | -0.08 |
| Mar | 4.53 | 4.58 | -0.05 |
| Apr | 4.99 | 5.05 | -0.06 |
| May | 5.46 | 5.43 | 0.03 |
| Jun | 5.08 | 4.90 | 0.18 |
| Jul | 4.91 | 4.70 | 0.21 |
| Aug | 3.77 | 3.42 | 0.35 |
| Sep | 3.54 | 3.72 | -0.18 |
| Oct | 3.81 | 3.64 | 0.17 |
| Nov | 3.66 | 3.68 | -0.02 |
| Dec | 4.26 | 4.35 | -0.09 |
51.08 | 50.69 | 0.39 |