| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.60 | 0.64 | -0.04 |
| Feb | 0.51 | 0.57 | -0.06 |
| Mar | 0.82 | 0.83 | -0.01 |
| Apr | 1.24 | 1.16 | 0.08 |
| May | 2.94 | 2.94 | 0.00 |
| Jun | 3.97 | 3.90 | 0.07 |
| Jul | 3.43 | 3.34 | 0.09 |
| Aug | 2.64 | 2.75 | -0.11 |
| Sep | 2.46 | 2.50 | -0.04 |
| Oct | 1.85 | 1.92 | -0.07 |
| Nov | 0.89 | 0.93 | -0.04 |
| Dec | 0.77 | 0.82 | -0.05 |
22.12 | 22.30 | -0.18 |