| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.09 | 3.06 | -0.97 |
| Feb | 1.89 | 2.88 | -0.99 |
| Mar | 1.52 | 2.12 | -0.60 |
| Apr | 0.69 | 0.81 | -0.12 |
| May | 0.78 | 0.84 | -0.06 |
| Jun | 0.43 | 0.47 | -0.04 |
| Jul | 0.24 | 0.20 | 0.04 |
| Aug | 0.23 | 0.21 | 0.02 |
| Sep | 0.26 | 0.29 | -0.03 |
| Oct | 0.82 | 0.92 | -0.10 |
| Nov | 1.16 | 1.63 | -0.47 |
| Dec | 1.99 | 3.12 | -1.13 |
12.10 | 16.55 | -4.45 |