| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.09 | 3.06 | 0.03 |
| Feb | 2.69 | 2.83 | -0.14 |
| Mar | 4.00 | 3.99 | 0.01 |
| Apr | 3.29 | 3.20 | 0.09 |
| May | 3.94 | 4.09 | -0.15 |
| Jun | 4.29 | 4.27 | 0.02 |
| Jul | 4.46 | 4.41 | 0.05 |
| Aug | 4.33 | 4.45 | -0.12 |
| Sep | 4.58 | 4.47 | 0.11 |
| Oct | 3.83 | 4.10 | -0.27 |
| Nov | 3.17 | 3.21 | -0.04 |
| Dec | 3.68 | 3.77 | -0.09 |
45.35 | 45.85 | -0.50 |