| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.78 | 0.75 | 0.03 |
| Feb | 0.99 | 0.97 | 0.02 |
| Mar | 1.75 | 1.69 | 0.06 |
| Apr | 2.88 | 2.87 | 0.01 |
| May | 5.17 | 5.15 | 0.02 |
| Jun | 4.72 | 4.71 | 0.01 |
| Jul | 3.86 | 3.77 | 0.09 |
| Aug | 3.68 | 3.55 | 0.13 |
| Sep | 3.10 | 3.00 | 0.10 |
| Oct | 2.38 | 2.41 | -0.03 |
| Nov | 1.34 | 1.41 | -0.07 |
| Dec | 1.24 | 1.19 | 0.05 |
31.89 | 31.47 | 0.42 |