| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.48 | 2.73 | -0.25 |
| Feb | 2.05 | 2.12 | -0.07 |
| Mar | 2.75 | 2.77 | -0.02 |
| Apr | 3.98 | 3.88 | 0.10 |
| May | 4.36 | 4.37 | -0.01 |
| Jun | 4.84 | 4.81 | 0.03 |
| Jul | 4.51 | 4.44 | 0.07 |
| Aug | 3.42 | 3.33 | 0.09 |
| Sep | 2.99 | 2.93 | 0.06 |
| Oct | 3.12 | 3.05 | 0.07 |
| Nov | 3.05 | 3.16 | -0.11 |
| Dec | 2.48 | 2.55 | -0.07 |
40.03 | 40.14 | -0.11 |