| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.93 | 0.90 | 0.03 |
| Feb | 0.95 | 0.89 | 0.06 |
| Mar | 1.74 | 1.67 | 0.07 |
| Apr | 2.92 | 2.89 | 0.03 |
| May | 4.13 | 4.06 | 0.07 |
| Jun | 4.93 | 5.17 | -0.24 |
| Jul | 4.09 | 4.11 | -0.02 |
| Aug | 4.55 | 4.61 | -0.06 |
| Sep | 3.58 | 3.48 | 0.10 |
| Oct | 2.85 | 2.73 | 0.12 |
| Nov | 1.72 | 1.66 | 0.06 |
| Dec | 1.28 | 1.20 | 0.08 |
33.67 | 33.37 | 0.30 |