| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.97 | 1.00 | -0.03 |
| Feb | 1.02 | 1.01 | 0.01 |
| Mar | 1.72 | 1.67 | 0.05 |
| Apr | 2.96 | 2.95 | 0.01 |
| May | 4.01 | 3.85 | 0.16 |
| Jun | 4.77 | 4.77 | 0.00 |
| Jul | 4.57 | 4.44 | 0.13 |
| Aug | 4.32 | 4.13 | 0.19 |
| Sep | 3.60 | 3.32 | 0.28 |
| Oct | 3.02 | 2.96 | 0.06 |
| Nov | 1.78 | 1.81 | -0.03 |
| Dec | 1.30 | 1.40 | -0.10 |
34.04 | 33.31 | 0.73 |