| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.41 | 3.59 | -0.18 |
| Feb | 2.86 | 2.84 | 0.02 |
| Mar | 4.04 | 3.83 | 0.21 |
| Apr | 3.44 | 3.54 | -0.10 |
| May | 3.71 | 3.80 | -0.09 |
| Jun | 4.30 | 4.32 | -0.02 |
| Jul | 5.35 | 4.93 | 0.42 |
| Aug | 5.10 | 5.58 | -0.48 |
| Sep | 5.15 | 5.10 | 0.05 |
| Oct | 3.88 | 4.48 | -0.60 |
| Nov | 3.15 | 3.35 | -0.20 |
| Dec | 3.42 | 3.50 | -0.08 |
47.81 | 48.86 | -1.05 |