| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.38 | 0.40 | -0.02 |
| Feb | 0.48 | 0.55 | -0.07 |
| Mar | 0.97 | 1.00 | -0.03 |
| Apr | 2.11 | 2.15 | -0.04 |
| May | 2.91 | 3.09 | -0.18 |
| Jun | 3.19 | 3.16 | 0.03 |
| Jul | 3.42 | 3.33 | 0.09 |
| Aug | 2.97 | 2.99 | -0.02 |
| Sep | 1.54 | 1.57 | -0.03 |
| Oct | 1.48 | 1.51 | -0.03 |
| Nov | 0.73 | 0.68 | 0.05 |
| Dec | 0.53 | 0.55 | -0.02 |
20.71 | 20.98 | -0.27 |