| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.53 | 2.75 | -0.22 |
| Feb | 2.18 | 2.34 | -0.16 |
| Mar | 3.42 | 3.50 | -0.08 |
| Apr | 4.77 | 4.86 | -0.09 |
| May | 4.99 | 5.04 | -0.05 |
| Jun | 4.40 | 4.67 | -0.27 |
| Jul | 3.87 | 4.32 | -0.45 |
| Aug | 3.27 | 3.62 | -0.35 |
| Sep | 3.39 | 3.41 | -0.02 |
| Oct | 3.16 | 3.14 | 0.02 |
| Nov | 3.40 | 3.62 | -0.22 |
| Dec | 2.67 | 2.70 | -0.03 |
42.05 | 43.97 | -1.92 |