| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.70 | 0.79 | -0.09 |
| Feb | 0.79 | 0.88 | -0.09 |
| Mar | 1.48 | 1.52 | -0.04 |
| Apr | 2.85 | 2.89 | -0.04 |
| May | 4.11 | 4.21 | -0.10 |
| Jun | 4.47 | 4.51 | -0.04 |
| Jul | 3.98 | 4.04 | -0.06 |
| Aug | 4.10 | 4.15 | -0.05 |
| Sep | 3.27 | 3.28 | -0.01 |
| Oct | 2.69 | 2.63 | 0.06 |
| Nov | 1.47 | 1.53 | -0.06 |
| Dec | 1.01 | 1.16 | -0.15 |
30.92 | 31.59 | -0.67 |