| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.10 | 3.02 | 0.08 |
| Feb | 2.68 | 2.72 | -0.04 |
| Mar | 3.74 | 3.49 | 0.25 |
| Apr | 3.83 | 3.58 | 0.25 |
| May | 4.50 | 4.45 | 0.05 |
| Jun | 4.33 | 4.10 | 0.23 |
| Jul | 3.89 | 3.88 | 0.01 |
| Aug | 3.62 | 3.46 | 0.16 |
| Sep | 3.67 | 3.29 | 0.38 |
| Oct | 2.68 | 2.50 | 0.18 |
| Nov | 2.98 | 3.00 | -0.02 |
| Dec | 3.50 | 3.22 | 0.28 |
42.52 | 40.71 | 1.81 |