| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.86 | 0.87 | -0.01 |
| Feb | 0.96 | 0.89 | 0.07 |
| Mar | 1.59 | 1.51 | 0.08 |
| Apr | 2.80 | 2.89 | -0.09 |
| May | 4.01 | 3.85 | 0.16 |
| Jun | 4.54 | 4.50 | 0.04 |
| Jul | 4.46 | 4.31 | 0.15 |
| Aug | 4.18 | 3.97 | 0.21 |
| Sep | 3.50 | 3.41 | 0.09 |
| Oct | 2.99 | 2.97 | 0.02 |
| Nov | 1.72 | 1.67 | 0.05 |
| Dec | 1.21 | 1.26 | -0.05 |
32.82 | 32.10 | 0.72 |