| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.70 | 0.72 | -0.02 |
| Feb | 0.92 | 0.85 | 0.07 |
| Mar | 1.62 | 1.55 | 0.07 |
| Apr | 2.63 | 2.75 | -0.12 |
| May | 5.01 | 5.15 | -0.14 |
| Jun | 4.44 | 4.53 | -0.09 |
| Jul | 3.86 | 3.84 | 0.02 |
| Aug | 3.48 | 3.41 | 0.07 |
| Sep | 2.82 | 2.90 | -0.08 |
| Oct | 2.32 | 2.28 | 0.04 |
| Nov | 1.30 | 1.35 | -0.05 |
| Dec | 1.13 | 1.03 | 0.10 |
30.23 | 30.36 | -0.13 |