| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.51 | 3.36 | 0.15 |
| Feb | 3.08 | 2.93 | 0.15 |
| Mar | 4.10 | 3.99 | 0.11 |
| Apr | 3.32 | 3.33 | -0.01 |
| May | 3.54 | 3.77 | -0.23 |
| Jun | 3.87 | 3.86 | 0.01 |
| Jul | 4.50 | 4.17 | 0.33 |
| Aug | 4.36 | 4.53 | -0.17 |
| Sep | 4.22 | 4.26 | -0.04 |
| Oct | 3.94 | 4.27 | -0.33 |
| Nov | 3.12 | 3.03 | 0.09 |
| Dec | 3.65 | 3.82 | -0.17 |
45.21 | 45.32 | -0.11 |