| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.91 | 0.94 | -0.03 |
| Feb | 0.87 | 0.95 | -0.08 |
| Mar | 1.38 | 1.44 | -0.06 |
| Apr | 2.43 | 2.50 | -0.07 |
| May | 3.26 | 3.41 | -0.15 |
| Jun | 4.48 | 4.53 | -0.05 |
| Jul | 4.11 | 4.21 | -0.10 |
| Aug | 3.67 | 3.87 | -0.20 |
| Sep | 3.21 | 3.41 | -0.20 |
| Oct | 2.97 | 3.11 | -0.14 |
| Nov | 1.69 | 1.79 | -0.10 |
| Dec | 1.28 | 1.48 | -0.20 |
30.26 | 31.64 | -1.38 |