| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.49 | 0.52 | -0.03 |
| Feb | 0.68 | 0.70 | -0.02 |
| Mar | 1.28 | 1.36 | -0.08 |
| Apr | 1.86 | 1.85 | 0.01 |
| May | 3.23 | 3.31 | -0.08 |
| Jun | 3.05 | 3.09 | -0.04 |
| Jul | 3.38 | 3.50 | -0.12 |
| Aug | 2.87 | 2.91 | -0.04 |
| Sep | 1.69 | 1.70 | -0.01 |
| Oct | 1.60 | 1.67 | -0.07 |
| Nov | 0.71 | 0.73 | -0.02 |
| Dec | 0.72 | 0.80 | -0.08 |
21.56 | 22.14 | -0.58 |