| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.71 | 0.86 | -0.15 |
| Feb | 0.77 | 0.89 | -0.12 |
| Mar | 1.51 | 1.59 | -0.08 |
| Apr | 2.87 | 2.98 | -0.11 |
| May | 4.13 | 4.33 | -0.20 |
| Jun | 4.38 | 4.60 | -0.22 |
| Jul | 4.11 | 4.16 | -0.05 |
| Aug | 4.15 | 4.20 | -0.05 |
| Sep | 3.20 | 3.28 | -0.08 |
| Oct | 2.77 | 2.68 | 0.09 |
| Nov | 1.54 | 1.57 | -0.03 |
| Dec | 1.00 | 1.23 | -0.23 |
31.14 | 32.37 | -1.23 |