| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.01 | 1.06 | -0.05 |
| Feb | 0.96 | 0.97 | -0.01 |
| Mar | 1.68 | 1.68 | 0.00 |
| Apr | 2.95 | 3.05 | -0.10 |
| May | 3.83 | 3.59 | 0.24 |
| Jun | 4.50 | 4.34 | 0.16 |
| Jul | 3.67 | 3.46 | 0.21 |
| Aug | 3.84 | 3.63 | 0.21 |
| Sep | 3.75 | 3.40 | 0.35 |
| Oct | 2.87 | 2.93 | -0.06 |
| Nov | 1.76 | 1.85 | -0.09 |
| Dec | 1.31 | 1.41 | -0.10 |
32.13 | 31.37 | 0.76 |