| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.44 | 0.41 | 0.03 |
| Feb | 0.64 | 0.60 | 0.04 |
| Mar | 1.04 | 1.12 | -0.08 |
| Apr | 2.49 | 2.45 | 0.04 |
| May | 3.46 | 3.47 | -0.01 |
| Jun | 3.70 | 3.81 | -0.11 |
| Jul | 2.49 | 2.77 | -0.28 |
| Aug | 2.28 | 2.21 | 0.07 |
| Sep | 1.73 | 1.67 | 0.06 |
| Oct | 1.51 | 1.58 | -0.07 |
| Nov | 0.68 | 0.64 | 0.04 |
| Dec | 0.62 | 0.55 | 0.07 |
21.08 | 21.28 | -0.20 |