| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.77 | 0.73 | 0.04 |
| Feb | 0.80 | 0.83 | -0.03 |
| Mar | 1.48 | 1.48 | 0.00 |
| Apr | 2.74 | 2.77 | -0.03 |
| May | 4.01 | 3.90 | 0.11 |
| Jun | 4.32 | 4.32 | 0.00 |
| Jul | 4.34 | 4.35 | -0.01 |
| Aug | 4.04 | 4.05 | -0.01 |
| Sep | 3.37 | 3.22 | 0.15 |
| Oct | 2.83 | 2.88 | -0.05 |
| Nov | 1.61 | 1.58 | 0.03 |
| Dec | 1.08 | 1.10 | -0.02 |
31.39 | 31.21 | 0.18 |