| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.45 | 1.56 | -0.11 |
| Feb | 1.33 | 1.38 | -0.05 |
| Mar | 1.87 | 1.88 | -0.01 |
| Apr | 3.49 | 3.48 | 0.01 |
| May | 3.80 | 3.75 | 0.05 |
| Jun | 4.72 | 4.48 | 0.24 |
| Jul | 3.81 | 3.88 | -0.07 |
| Aug | 3.83 | 3.79 | 0.04 |
| Sep | 3.22 | 3.19 | 0.03 |
| Oct | 2.80 | 2.81 | -0.01 |
| Nov | 2.11 | 2.04 | 0.07 |
| Dec | 1.69 | 1.74 | -0.05 |
34.12 | 33.98 | 0.14 |