| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.59 | 2.79 | -0.20 |
| Feb | 2.11 | 2.29 | -0.18 |
| Mar | 2.71 | 2.82 | -0.11 |
| Apr | 3.51 | 3.65 | -0.14 |
| May | 3.72 | 3.76 | -0.04 |
| Jun | 3.93 | 3.84 | 0.09 |
| Jul | 3.67 | 3.70 | -0.03 |
| Aug | 3.58 | 3.62 | -0.04 |
| Sep | 3.62 | 3.66 | -0.04 |
| Oct | 3.32 | 3.40 | -0.08 |
| Nov | 2.89 | 2.97 | -0.08 |
| Dec | 2.66 | 2.81 | -0.15 |
38.31 | 39.31 | -1.00 |