| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.48 | 1.69 | -0.21 |
| Feb | 1.64 | 1.46 | 0.18 |
| Mar | 1.55 | 1.44 | 0.11 |
| Apr | 1.50 | 1.53 | -0.03 |
| May | 1.34 | 1.43 | -0.09 |
| Jun | 0.82 | 0.93 | -0.11 |
| Jul | 1.83 | 1.93 | -0.10 |
| Aug | 2.07 | 1.94 | 0.13 |
| Sep | 1.67 | 1.73 | -0.06 |
| Oct | 1.27 | 1.14 | 0.13 |
| Nov | 1.42 | 1.41 | 0.01 |
| Dec | 1.66 | 1.45 | 0.21 |
18.25 | 18.08 | 0.17 |