| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.72 | 0.70 | 0.02 |
| Feb | 0.79 | 0.77 | 0.02 |
| Mar | 1.43 | 1.46 | -0.03 |
| Apr | 2.58 | 2.61 | -0.03 |
| May | 3.45 | 3.45 | 0.00 |
| Jun | 4.38 | 4.57 | -0.19 |
| Jul | 3.99 | 4.01 | -0.02 |
| Aug | 3.83 | 3.90 | -0.07 |
| Sep | 2.94 | 2.98 | -0.04 |
| Oct | 2.45 | 2.47 | -0.02 |
| Nov | 1.34 | 1.29 | 0.05 |
| Dec | 0.90 | 0.91 | -0.01 |
28.80 | 29.12 | -0.32 |