| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.43 | 0.40 | 0.03 |
| Feb | 0.63 | 0.58 | 0.05 |
| Mar | 1.18 | 1.09 | 0.09 |
| Apr | 2.68 | 2.54 | 0.14 |
| May | 3.79 | 3.66 | 0.13 |
| Jun | 4.03 | 3.89 | 0.14 |
| Jul | 2.81 | 2.84 | -0.03 |
| Aug | 2.30 | 2.27 | 0.03 |
| Sep | 2.03 | 1.89 | 0.14 |
| Oct | 1.68 | 1.61 | 0.07 |
| Nov | 0.66 | 0.64 | 0.02 |
| Dec | 0.53 | 0.52 | 0.01 |
22.75 | 21.93 | 0.82 |