| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.05 | 1.03 | 0.02 |
| Feb | 1.14 | 1.08 | 0.06 |
| Mar | 1.85 | 1.83 | 0.02 |
| Apr | 3.12 | 3.02 | 0.10 |
| May | 4.11 | 4.00 | 0.11 |
| Jun | 4.85 | 4.69 | 0.16 |
| Jul | 3.65 | 3.63 | 0.02 |
| Aug | 4.11 | 3.99 | 0.12 |
| Sep | 3.58 | 3.59 | -0.01 |
| Oct | 2.68 | 2.54 | 0.14 |
| Nov | 1.85 | 1.75 | 0.10 |
| Dec | 1.27 | 1.33 | -0.06 |
33.26 | 32.48 | 0.78 |