| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.55 | 3.63 | -0.08 |
| Feb | 2.81 | 2.99 | -0.18 |
| Mar | 3.85 | 4.00 | -0.15 |
| Apr | 3.96 | 3.91 | 0.05 |
| May | 4.12 | 4.10 | 0.02 |
| Jun | 4.58 | 4.65 | -0.07 |
| Jul | 5.10 | 5.25 | -0.15 |
| Aug | 4.81 | 4.65 | 0.16 |
| Sep | 4.74 | 4.84 | -0.10 |
| Oct | 4.54 | 4.58 | -0.04 |
| Nov | 3.43 | 3.45 | -0.02 |
| Dec | 4.21 | 4.36 | -0.15 |
49.70 | 50.41 | -0.71 |