| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.20 | 3.27 | -0.07 |
| Feb | 2.63 | 2.78 | -0.15 |
| Mar | 3.91 | 4.02 | -0.11 |
| Apr | 3.60 | 3.57 | 0.03 |
| May | 4.03 | 4.15 | -0.12 |
| Jun | 4.31 | 4.16 | 0.15 |
| Jul | 4.52 | 4.29 | 0.23 |
| Aug | 3.68 | 3.80 | -0.12 |
| Sep | 4.56 | 4.61 | -0.05 |
| Oct | 3.99 | 4.16 | -0.17 |
| Nov | 3.32 | 3.26 | 0.06 |
| Dec | 3.71 | 3.91 | -0.20 |
45.46 | 45.98 | -0.52 |