| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.05 | 4.19 | -0.14 |
| Feb | 4.02 | 4.10 | -0.08 |
| Mar | 4.48 | 4.57 | -0.09 |
| Apr | 3.20 | 3.31 | -0.11 |
| May | 3.22 | 3.21 | 0.01 |
| Jun | 4.07 | 4.39 | -0.32 |
| Jul | 3.95 | 4.03 | -0.08 |
| Aug | 4.31 | 4.28 | 0.03 |
| Sep | 3.71 | 3.66 | 0.05 |
| Oct | 2.99 | 3.16 | -0.17 |
| Nov | 3.47 | 3.63 | -0.16 |
| Dec | 4.44 | 4.53 | -0.09 |
45.91 | 47.06 | -1.15 |