| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.52 | 0.49 | 0.03 |
| Feb | 0.75 | 0.65 | 0.10 |
| Mar | 1.30 | 1.19 | 0.11 |
| Apr | 2.74 | 2.75 | -0.01 |
| May | 3.67 | 3.58 | 0.09 |
| Jun | 4.09 | 4.11 | -0.02 |
| Jul | 3.15 | 3.32 | -0.17 |
| Aug | 3.29 | 3.26 | 0.03 |
| Sep | 2.94 | 2.99 | -0.05 |
| Oct | 2.15 | 2.12 | 0.03 |
| Nov | 1.03 | 1.01 | 0.02 |
| Dec | 0.70 | 0.68 | 0.02 |
26.33 | 26.15 | 0.18 |