| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.95 | 3.90 | 0.05 |
| Feb | 3.94 | 4.05 | -0.11 |
| Mar | 4.35 | 4.38 | -0.03 |
| Apr | 3.93 | 4.15 | -0.22 |
| May | 4.39 | 4.55 | -0.16 |
| Jun | 4.08 | 4.25 | -0.17 |
| Jul | 2.83 | 2.74 | 0.09 |
| Aug | 2.58 | 2.81 | -0.23 |
| Sep | 3.30 | 3.27 | 0.03 |
| Oct | 4.46 | 4.52 | -0.06 |
| Nov | 3.77 | 3.93 | -0.16 |
| Dec | 4.40 | 4.59 | -0.19 |
45.98 | 47.14 | -1.16 |