| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.53 | 0.58 | -0.05 |
| Feb | 0.72 | 0.73 | -0.01 |
| Mar | 1.35 | 1.37 | -0.02 |
| Apr | 1.87 | 1.99 | -0.12 |
| May | 3.31 | 3.50 | -0.19 |
| Jun | 3.08 | 3.22 | -0.14 |
| Jul | 3.70 | 3.84 | -0.14 |
| Aug | 3.02 | 3.10 | -0.08 |
| Sep | 1.70 | 1.74 | -0.04 |
| Oct | 1.81 | 1.83 | -0.02 |
| Nov | 0.75 | 0.76 | -0.01 |
| Dec | 0.84 | 0.90 | -0.06 |
22.68 | 23.56 | -0.88 |