| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.76 | 0.89 | -0.13 |
| Feb | 0.79 | 0.86 | -0.07 |
| Mar | 1.59 | 1.63 | -0.04 |
| Apr | 2.84 | 3.02 | -0.18 |
| May | 4.10 | 4.17 | -0.07 |
| Jun | 4.64 | 4.63 | 0.01 |
| Jul | 4.16 | 4.27 | -0.11 |
| Aug | 4.46 | 4.14 | 0.32 |
| Sep | 3.29 | 3.28 | 0.01 |
| Oct | 2.83 | 2.84 | -0.01 |
| Nov | 1.59 | 1.63 | -0.04 |
| Dec | 1.09 | 1.24 | -0.15 |
32.14 | 32.60 | -0.46 |