| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.75 | 2.80 | -0.05 |
| Feb | 2.22 | 2.20 | 0.02 |
| Mar | 2.93 | 2.94 | -0.01 |
| Apr | 3.70 | 3.71 | -0.01 |
| May | 4.05 | 4.07 | -0.02 |
| Jun | 4.54 | 4.37 | 0.17 |
| Jul | 3.90 | 3.92 | -0.02 |
| Aug | 3.59 | 3.53 | 0.06 |
| Sep | 3.43 | 3.42 | 0.01 |
| Oct | 3.26 | 3.08 | 0.18 |
| Nov | 2.85 | 2.79 | 0.06 |
| Dec | 2.75 | 2.81 | -0.06 |
39.97 | 39.64 | 0.33 |