| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.43 | 3.51 | -0.08 |
| Feb | 2.68 | 2.73 | -0.05 |
| Mar | 4.11 | 4.23 | -0.12 |
| Apr | 3.61 | 3.74 | -0.13 |
| May | 3.92 | 4.03 | -0.11 |
| Jun | 4.32 | 4.54 | -0.22 |
| Jul | 4.96 | 4.87 | 0.09 |
| Aug | 4.22 | 4.41 | -0.19 |
| Sep | 3.93 | 4.15 | -0.22 |
| Oct | 4.07 | 3.99 | 0.08 |
| Nov | 3.20 | 3.31 | -0.11 |
| Dec | 4.20 | 4.32 | -0.12 |
46.65 | 47.83 | -1.18 |