| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.05 | 4.07 | -0.02 |
| Feb | 3.77 | 3.82 | -0.05 |
| Mar | 4.45 | 4.44 | 0.01 |
| Apr | 3.26 | 3.33 | -0.07 |
| May | 3.40 | 3.34 | 0.06 |
| Jun | 4.14 | 3.98 | 0.16 |
| Jul | 3.75 | 3.63 | 0.12 |
| Aug | 3.91 | 3.95 | -0.04 |
| Sep | 3.40 | 3.54 | -0.14 |
| Oct | 3.12 | 3.13 | -0.01 |
| Nov | 3.53 | 3.63 | -0.10 |
| Dec | 4.42 | 4.41 | 0.01 |
45.20 | 45.27 | -0.07 |