| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.68 | 0.70 | -0.02 |
| Feb | 0.96 | 1.00 | -0.04 |
| Mar | 1.80 | 1.81 | -0.01 |
| Apr | 2.86 | 2.83 | 0.03 |
| May | 4.71 | 4.68 | 0.03 |
| Jun | 4.44 | 4.38 | 0.06 |
| Jul | 4.23 | 4.38 | -0.15 |
| Aug | 3.86 | 3.91 | -0.05 |
| Sep | 2.84 | 2.89 | -0.05 |
| Oct | 2.24 | 2.23 | 0.01 |
| Nov | 1.36 | 1.40 | -0.04 |
| Dec | 1.09 | 1.06 | 0.03 |
31.07 | 31.27 | -0.20 |