| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.89 | 0.85 | 0.04 |
| Feb | 0.87 | 0.78 | 0.09 |
| Mar | 1.57 | 1.54 | 0.03 |
| Apr | 2.83 | 2.85 | -0.02 |
| May | 4.12 | 4.06 | 0.06 |
| Jun | 5.06 | 5.12 | -0.06 |
| Jul | 4.18 | 4.23 | -0.05 |
| Aug | 4.53 | 4.61 | -0.08 |
| Sep | 3.45 | 3.42 | 0.03 |
| Oct | 2.87 | 2.75 | 0.12 |
| Nov | 1.70 | 1.60 | 0.10 |
| Dec | 1.19 | 1.12 | 0.07 |
33.26 | 32.93 | 0.33 |