| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.87 | 0.89 | -0.02 |
| Feb | 0.97 | 0.89 | 0.08 |
| Mar | 1.60 | 1.54 | 0.06 |
| Apr | 2.82 | 2.92 | -0.10 |
| May | 4.01 | 3.89 | 0.12 |
| Jun | 4.57 | 4.64 | -0.07 |
| Jul | 4.45 | 4.31 | 0.14 |
| Aug | 4.20 | 4.04 | 0.16 |
| Sep | 3.50 | 3.38 | 0.12 |
| Oct | 2.97 | 2.94 | 0.03 |
| Nov | 1.72 | 1.68 | 0.04 |
| Dec | 1.20 | 1.26 | -0.06 |
32.88 | 32.38 | 0.50 |