| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.90 | 0.94 | -0.04 |
| Feb | 0.86 | 0.94 | -0.08 |
| Mar | 1.36 | 1.43 | -0.07 |
| Apr | 2.41 | 2.47 | -0.06 |
| May | 3.26 | 3.42 | -0.16 |
| Jun | 4.51 | 4.54 | -0.03 |
| Jul | 4.11 | 4.23 | -0.12 |
| Aug | 3.68 | 3.91 | -0.23 |
| Sep | 3.21 | 3.40 | -0.19 |
| Oct | 2.97 | 3.14 | -0.17 |
| Nov | 1.67 | 1.77 | -0.10 |
| Dec | 1.28 | 1.47 | -0.19 |
30.22 | 31.66 | -1.44 |