| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.65 | 2.74 | -0.09 |
| Feb | 2.13 | 2.32 | -0.19 |
| Mar | 2.75 | 2.84 | -0.09 |
| Apr | 3.57 | 3.68 | -0.11 |
| May | 3.79 | 3.80 | -0.01 |
| Jun | 4.06 | 3.94 | 0.12 |
| Jul | 3.73 | 3.75 | -0.02 |
| Aug | 3.61 | 3.59 | 0.02 |
| Sep | 3.62 | 3.63 | -0.01 |
| Oct | 3.33 | 3.41 | -0.08 |
| Nov | 2.90 | 2.91 | -0.01 |
| Dec | 2.67 | 2.71 | -0.04 |
38.81 | 39.32 | -0.51 |