| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.67 | 3.83 | -0.16 |
| Feb | 3.42 | 3.54 | -0.12 |
| Mar | 3.76 | 4.10 | -0.34 |
| Apr | 2.90 | 3.02 | -0.12 |
| May | 3.33 | 3.40 | -0.07 |
| Jun | 4.88 | 4.95 | -0.07 |
| Jul | 4.71 | 4.88 | -0.17 |
| Aug | 4.68 | 4.87 | -0.19 |
| Sep | 4.03 | 4.09 | -0.06 |
| Oct | 3.17 | 3.43 | -0.26 |
| Nov | 2.83 | 3.06 | -0.23 |
| Dec | 3.72 | 3.88 | -0.16 |
45.10 | 47.05 | -1.95 |