| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.00 | 1.14 | -0.14 |
| Feb | 0.98 | 0.99 | -0.01 |
| Mar | 1.22 | 1.13 | 0.09 |
| Apr | 2.19 | 2.07 | 0.12 |
| May | 2.90 | 2.70 | 0.20 |
| Jun | 3.66 | 3.53 | 0.13 |
| Jul | 3.54 | 3.42 | 0.12 |
| Aug | 2.76 | 2.66 | 0.10 |
| Sep | 3.01 | 2.91 | 0.10 |
| Oct | 3.00 | 2.98 | 0.02 |
| Nov | 1.96 | 1.98 | -0.02 |
| Dec | 1.49 | 1.48 | 0.01 |
27.71 | 26.99 | 0.72 |