| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.72 | 0.86 | -0.14 |
| Feb | 0.77 | 0.88 | -0.11 |
| Mar | 1.53 | 1.61 | -0.08 |
| Apr | 2.83 | 2.99 | -0.16 |
| May | 4.12 | 4.34 | -0.22 |
| Jun | 4.39 | 4.50 | -0.11 |
| Jul | 4.19 | 4.16 | 0.03 |
| Aug | 4.18 | 4.19 | -0.01 |
| Sep | 3.19 | 3.22 | -0.03 |
| Oct | 2.82 | 2.70 | 0.12 |
| Nov | 1.54 | 1.63 | -0.09 |
| Dec | 1.01 | 1.24 | -0.23 |
31.29 | 32.32 | -1.03 |