| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.98 | 0.95 | 0.03 |
| Feb | 1.01 | 0.96 | 0.05 |
| Mar | 1.77 | 1.74 | 0.03 |
| Apr | 3.02 | 2.98 | 0.04 |
| May | 4.13 | 4.03 | 0.10 |
| Jun | 4.88 | 4.87 | 0.01 |
| Jul | 4.25 | 4.16 | 0.09 |
| Aug | 4.33 | 4.39 | -0.06 |
| Sep | 3.66 | 3.48 | 0.18 |
| Oct | 2.92 | 2.88 | 0.04 |
| Nov | 1.79 | 1.74 | 0.05 |
| Dec | 1.32 | 1.29 | 0.03 |
34.06 | 33.47 | 0.59 |