| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.34 | 3.63 | -0.29 |
| Feb | 2.95 | 3.06 | -0.11 |
| Mar | 4.20 | 4.21 | -0.01 |
| Apr | 3.76 | 3.83 | -0.07 |
| May | 3.56 | 3.75 | -0.19 |
| Jun | 3.88 | 4.18 | -0.30 |
| Jul | 3.90 | 3.72 | 0.18 |
| Aug | 4.16 | 4.17 | -0.01 |
| Sep | 3.86 | 3.75 | 0.11 |
| Oct | 3.95 | 4.11 | -0.16 |
| Nov | 3.29 | 3.31 | -0.02 |
| Dec | 4.21 | 4.38 | -0.17 |
45.06 | 46.10 | -1.04 |