| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.78 | 0.83 | -0.05 |
| Feb | 0.83 | 0.84 | -0.01 |
| Mar | 1.57 | 1.48 | 0.09 |
| Apr | 2.83 | 2.86 | -0.03 |
| May | 4.12 | 4.17 | -0.05 |
| Jun | 4.34 | 4.45 | -0.11 |
| Jul | 4.35 | 4.42 | -0.07 |
| Aug | 4.05 | 3.98 | 0.07 |
| Sep | 3.27 | 3.23 | 0.04 |
| Oct | 2.87 | 2.88 | -0.01 |
| Nov | 1.67 | 1.65 | 0.02 |
| Dec | 1.13 | 1.21 | -0.08 |
31.81 | 32.00 | -0.19 |