| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.74 | 0.76 | -0.02 |
| Feb | 0.81 | 0.79 | 0.02 |
| Mar | 1.57 | 1.53 | 0.04 |
| Apr | 2.82 | 2.93 | -0.11 |
| May | 4.23 | 4.24 | -0.01 |
| Jun | 4.45 | 4.38 | 0.07 |
| Jul | 4.40 | 4.38 | 0.02 |
| Aug | 4.15 | 4.06 | 0.09 |
| Sep | 3.33 | 3.27 | 0.06 |
| Oct | 2.79 | 2.84 | -0.05 |
| Nov | 1.62 | 1.62 | 0.00 |
| Dec | 1.10 | 1.17 | -0.07 |
32.01 | 31.97 | 0.04 |