| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.46 | 0.47 | -0.01 |
| Feb | 0.68 | 0.67 | 0.01 |
| Mar | 1.17 | 1.21 | -0.04 |
| Apr | 2.77 | 2.94 | -0.17 |
| May | 3.80 | 3.99 | -0.19 |
| Jun | 3.89 | 4.21 | -0.32 |
| Jul | 2.91 | 2.89 | 0.02 |
| Aug | 2.90 | 3.26 | -0.36 |
| Sep | 2.32 | 2.48 | -0.16 |
| Oct | 1.91 | 2.17 | -0.26 |
| Nov | 0.73 | 0.78 | -0.05 |
| Dec | 0.55 | 0.63 | -0.08 |
24.09 | 25.70 | -1.61 |