| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.79 | 0.89 | -0.10 |
| Feb | 0.92 | 0.93 | -0.01 |
| Mar | 1.60 | 1.77 | -0.17 |
| Apr | 3.15 | 3.03 | 0.12 |
| May | 4.24 | 4.18 | 0.06 |
| Jun | 4.80 | 5.28 | -0.48 |
| Jul | 4.17 | 4.34 | -0.17 |
| Aug | 4.09 | 4.10 | -0.01 |
| Sep | 3.18 | 3.34 | -0.16 |
| Oct | 2.35 | 2.50 | -0.15 |
| Nov | 1.51 | 1.53 | -0.02 |
| Dec | 1.10 | 1.13 | -0.03 |
31.90 | 33.02 | -1.12 |