| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.74 | 0.73 | 0.01 |
| Feb | 0.80 | 0.85 | -0.05 |
| Mar | 1.42 | 1.49 | -0.07 |
| Apr | 2.57 | 2.62 | -0.05 |
| May | 3.82 | 3.64 | 0.18 |
| Jun | 4.44 | 4.39 | 0.05 |
| Jul | 4.34 | 4.65 | -0.31 |
| Aug | 4.04 | 4.07 | -0.03 |
| Sep | 3.23 | 3.20 | 0.03 |
| Oct | 2.90 | 2.97 | -0.07 |
| Nov | 1.57 | 1.55 | 0.02 |
| Dec | 1.06 | 1.16 | -0.10 |
30.93 | 31.32 | -0.39 |