| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.32 | 4.37 | -0.05 |
| Feb | 4.46 | 4.41 | 0.05 |
| Mar | 4.85 | 4.77 | 0.08 |
| Apr | 3.79 | 3.87 | -0.08 |
| May | 2.81 | 3.00 | -0.19 |
| Jun | 4.14 | 4.29 | -0.15 |
| Jul | 4.44 | 4.58 | -0.14 |
| Aug | 4.32 | 4.21 | 0.11 |
| Sep | 3.87 | 3.64 | 0.23 |
| Oct | 3.08 | 3.12 | -0.04 |
| Nov | 3.50 | 3.60 | -0.10 |
| Dec | 4.59 | 4.58 | 0.01 |
48.17 | 48.44 | -0.27 |