| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.74 | 3.68 | 0.06 |
| Feb | 2.99 | 3.24 | -0.25 |
| Mar | 4.46 | 4.44 | 0.02 |
| Apr | 3.70 | 3.69 | 0.01 |
| May | 3.83 | 3.68 | 0.15 |
| Jun | 4.04 | 4.20 | -0.16 |
| Jul | 4.50 | 4.31 | 0.19 |
| Aug | 4.57 | 4.49 | 0.08 |
| Sep | 3.94 | 3.85 | 0.09 |
| Oct | 4.10 | 4.29 | -0.19 |
| Nov | 3.33 | 3.58 | -0.25 |
| Dec | 4.47 | 4.72 | -0.25 |
47.67 | 48.17 | -0.50 |