| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.97 | 0.96 | 0.01 |
| Feb | 1.04 | 0.99 | 0.05 |
| Mar | 1.82 | 1.80 | 0.02 |
| Apr | 3.02 | 3.01 | 0.01 |
| May | 4.12 | 4.12 | 0.00 |
| Jun | 4.80 | 4.99 | -0.19 |
| Jul | 3.93 | 4.04 | -0.11 |
| Aug | 4.29 | 4.38 | -0.09 |
| Sep | 3.61 | 3.53 | 0.08 |
| Oct | 2.87 | 2.77 | 0.10 |
| Nov | 1.77 | 1.73 | 0.04 |
| Dec | 1.33 | 1.30 | 0.03 |
33.57 | 33.62 | -0.05 |