| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.80 | 1.81 | -0.01 |
| Feb | 1.85 | 1.92 | -0.07 |
| Mar | 2.57 | 2.54 | 0.03 |
| Apr | 4.08 | 3.96 | 0.12 |
| May | 5.00 | 4.90 | 0.10 |
| Jun | 4.75 | 4.57 | 0.18 |
| Jul | 3.85 | 3.89 | -0.04 |
| Aug | 3.83 | 3.73 | 0.10 |
| Sep | 3.42 | 3.38 | 0.04 |
| Oct | 3.10 | 3.05 | 0.05 |
| Nov | 2.57 | 2.58 | -0.01 |
| Dec | 1.94 | 1.91 | 0.03 |
38.76 | 38.24 | 0.52 |