| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.42 | 0.42 | 0.00 |
| Feb | 0.59 | 0.62 | -0.03 |
| Mar | 1.20 | 1.19 | 0.01 |
| Apr | 1.88 | 1.97 | -0.09 |
| May | 3.21 | 3.22 | -0.01 |
| Jun | 2.82 | 2.78 | 0.04 |
| Jul | 3.29 | 3.67 | -0.38 |
| Aug | 2.86 | 2.94 | -0.08 |
| Sep | 1.80 | 1.74 | 0.06 |
| Oct | 1.67 | 1.68 | -0.01 |
| Nov | 0.69 | 0.68 | 0.01 |
| Dec | 0.57 | 0.68 | -0.11 |
21.00 | 21.59 | -0.59 |