| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.67 | 0.84 | -0.17 |
| Feb | 0.91 | 0.99 | -0.08 |
| Mar | 1.86 | 1.74 | 0.12 |
| Apr | 2.79 | 3.07 | -0.28 |
| May | 2.64 | 2.65 | -0.01 |
| Jun | 2.04 | 1.99 | 0.05 |
| Jul | 2.49 | 2.49 | 0.00 |
| Aug | 2.45 | 2.38 | 0.07 |
| Sep | 1.69 | 1.86 | -0.17 |
| Oct | 1.29 | 1.43 | -0.14 |
| Nov | 0.94 | 1.09 | -0.15 |
| Dec | 0.64 | 0.83 | -0.19 |
20.41 | 21.36 | -0.95 |