| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.34 | 3.51 | -0.17 |
| Feb | 2.64 | 2.83 | -0.19 |
| Mar | 3.63 | 3.80 | -0.17 |
| Apr | 3.73 | 3.92 | -0.19 |
| May | 3.75 | 3.99 | -0.24 |
| Jun | 4.87 | 4.94 | -0.07 |
| Jul | 4.51 | 4.66 | -0.15 |
| Aug | 4.45 | 4.62 | -0.17 |
| Sep | 4.64 | 4.79 | -0.15 |
| Oct | 4.45 | 4.76 | -0.31 |
| Nov | 3.19 | 3.33 | -0.14 |
| Dec | 3.92 | 4.12 | -0.20 |
47.12 | 49.27 | -2.15 |