| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.38 | 0.35 | 0.03 |
| Feb | 0.46 | 0.41 | 0.05 |
| Mar | 0.84 | 0.83 | 0.01 |
| Apr | 1.76 | 1.72 | 0.04 |
| May | 2.66 | 2.52 | 0.14 |
| Jun | 2.73 | 2.78 | -0.05 |
| Jul | 3.13 | 2.94 | 0.19 |
| Aug | 2.74 | 2.65 | 0.09 |
| Sep | 1.42 | 1.33 | 0.09 |
| Oct | 1.32 | 1.35 | -0.03 |
| Nov | 0.56 | 0.54 | 0.02 |
| Dec | 0.45 | 0.44 | 0.01 |
18.45 | 17.86 | 0.59 |