| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.49 | 2.51 | -0.02 |
| Feb | 2.22 | 2.29 | -0.07 |
| Mar | 3.48 | 3.36 | 0.12 |
| Apr | 4.67 | 4.57 | 0.10 |
| May | 4.94 | 5.04 | -0.10 |
| Jun | 4.44 | 4.47 | -0.03 |
| Jul | 3.81 | 3.90 | -0.09 |
| Aug | 3.68 | 3.50 | 0.18 |
| Sep | 3.37 | 3.33 | 0.04 |
| Oct | 3.19 | 3.25 | -0.06 |
| Nov | 3.43 | 3.42 | 0.01 |
| Dec | 2.56 | 2.60 | -0.04 |
42.28 | 42.24 | 0.04 |