| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.94 | 3.11 | -0.17 |
| Feb | 2.63 | 2.77 | -0.14 |
| Mar | 3.74 | 3.87 | -0.13 |
| Apr | 3.38 | 3.44 | -0.06 |
| May | 4.23 | 4.45 | -0.22 |
| Jun | 4.26 | 4.42 | -0.16 |
| Jul | 4.52 | 4.64 | -0.12 |
| Aug | 3.76 | 3.85 | -0.09 |
| Sep | 4.33 | 4.43 | -0.10 |
| Oct | 3.84 | 4.05 | -0.21 |
| Nov | 3.10 | 3.20 | -0.10 |
| Dec | 3.66 | 3.67 | -0.01 |
44.39 | 45.90 | -1.51 |