| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.88 | 0.83 | 0.05 |
| Feb | 0.94 | 0.86 | 0.08 |
| Mar | 1.79 | 1.67 | 0.12 |
| Apr | 3.10 | 2.91 | 0.19 |
| May | 4.35 | 4.30 | 0.05 |
| Jun | 5.09 | 4.96 | 0.13 |
| Jul | 4.38 | 4.15 | 0.23 |
| Aug | 4.49 | 4.54 | -0.05 |
| Sep | 3.48 | 3.47 | 0.01 |
| Oct | 2.59 | 2.55 | 0.04 |
| Nov | 1.61 | 1.58 | 0.03 |
| Dec | 1.21 | 1.19 | 0.02 |
33.91 | 33.01 | 0.90 |