| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.48 | 0.51 | -0.03 |
| Feb | 0.65 | 0.67 | -0.02 |
| Mar | 0.97 | 0.96 | 0.01 |
| Apr | 2.16 | 2.29 | -0.13 |
| May | 3.29 | 3.35 | -0.06 |
| Jun | 3.75 | 3.72 | 0.03 |
| Jul | 3.25 | 3.26 | -0.01 |
| Aug | 2.42 | 2.57 | -0.15 |
| Sep | 2.17 | 2.21 | -0.04 |
| Oct | 1.98 | 1.97 | 0.01 |
| Nov | 0.63 | 0.67 | -0.04 |
| Dec | 0.61 | 0.63 | -0.02 |
22.36 | 22.81 | -0.45 |