| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.71 | 1.74 | -0.03 |
| Feb | 1.96 | 2.04 | -0.08 |
| Mar | 2.74 | 2.79 | -0.05 |
| Apr | 4.53 | 4.54 | -0.01 |
| May | 5.07 | 5.06 | 0.01 |
| Jun | 4.72 | 4.87 | -0.15 |
| Jul | 4.36 | 4.38 | -0.02 |
| Aug | 3.57 | 3.47 | 0.10 |
| Sep | 3.95 | 3.97 | -0.02 |
| Oct | 3.39 | 3.45 | -0.06 |
| Nov | 2.73 | 2.78 | -0.05 |
| Dec | 1.97 | 2.13 | -0.16 |
40.70 | 41.22 | -0.52 |