| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.90 | 0.92 | -0.02 |
| Feb | 0.89 | 0.86 | 0.03 |
| Mar | 1.72 | 1.61 | 0.11 |
| Apr | 2.94 | 2.87 | 0.07 |
| May | 4.23 | 4.19 | 0.04 |
| Jun | 5.21 | 5.08 | 0.13 |
| Jul | 4.15 | 4.35 | -0.20 |
| Aug | 4.43 | 4.65 | -0.22 |
| Sep | 3.44 | 3.46 | -0.02 |
| Oct | 2.77 | 2.69 | 0.08 |
| Nov | 1.70 | 1.58 | 0.12 |
| Dec | 1.19 | 1.18 | 0.01 |
33.57 | 33.44 | 0.13 |