| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.02 | 1.93 | 0.09 |
| Feb | 2.28 | 2.22 | 0.06 |
| Mar | 3.39 | 3.32 | 0.07 |
| Apr | 4.05 | 3.98 | 0.07 |
| May | 5.62 | 5.26 | 0.36 |
| Jun | 4.78 | 4.68 | 0.10 |
| Jul | 3.45 | 3.42 | 0.03 |
| Aug | 2.92 | 2.72 | 0.20 |
| Sep | 4.65 | 4.16 | 0.49 |
| Oct | 4.02 | 3.77 | 0.25 |
| Nov | 2.66 | 2.56 | 0.10 |
| Dec | 2.81 | 2.57 | 0.24 |
42.65 | 40.59 | 2.06 |