| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.58 | 1.63 | -0.05 |
| Feb | 1.72 | 1.74 | -0.02 |
| Mar | 2.44 | 2.31 | 0.13 |
| Apr | 3.71 | 3.70 | 0.01 |
| May | 4.44 | 4.49 | -0.05 |
| Jun | 5.23 | 5.14 | 0.09 |
| Jul | 4.49 | 4.32 | 0.17 |
| Aug | 4.04 | 3.86 | 0.18 |
| Sep | 3.67 | 3.60 | 0.07 |
| Oct | 2.88 | 2.83 | 0.05 |
| Nov | 2.39 | 2.34 | 0.05 |
| Dec | 1.87 | 1.99 | -0.12 |
38.46 | 37.95 | 0.51 |