| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.59 | 2.85 | 0.74 |
| Feb | 3.72 | 3.09 | 0.63 |
| Mar | 2.82 | 2.19 | 0.63 |
| Apr | 1.27 | 1.02 | 0.25 |
| May | 0.57 | 0.42 | 0.15 |
| Jun | 0.12 | 0.13 | -0.01 |
| Jul | 0.00 | 0.00 | 0.00 |
| Aug | 0.02 | 0.02 | 0.00 |
| Sep | 0.07 | 0.05 | 0.02 |
| Oct | 0.74 | 0.56 | 0.18 |
| Nov | 1.78 | 1.28 | 0.50 |
| Dec | 3.52 | 2.61 | 0.91 |
18.22 | 14.22 | 4.00 |