| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.61 | 3.87 | -0.26 |
| Feb | 3.17 | 3.40 | -0.23 |
| Mar | 4.16 | 4.34 | -0.18 |
| Apr | 4.23 | 4.58 | -0.35 |
| May | 3.74 | 3.77 | -0.03 |
| Jun | 4.46 | 4.37 | 0.09 |
| Jul | 4.14 | 4.11 | 0.03 |
| Aug | 4.10 | 4.14 | -0.04 |
| Sep | 4.47 | 4.42 | 0.05 |
| Oct | 5.05 | 5.10 | -0.05 |
| Nov | 3.96 | 3.99 | -0.03 |
| Dec | 4.37 | 4.66 | -0.29 |
49.46 | 50.75 | -1.29 |