| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.40 | 0.43 | -0.03 |
| Feb | 0.47 | 0.53 | -0.06 |
| Mar | 1.06 | 1.14 | -0.08 |
| Apr | 1.58 | 1.73 | -0.15 |
| May | 2.61 | 2.82 | -0.21 |
| Jun | 2.95 | 2.89 | 0.06 |
| Jul | 3.15 | 3.06 | 0.09 |
| Aug | 2.76 | 2.97 | -0.21 |
| Sep | 1.40 | 1.47 | -0.07 |
| Oct | 1.43 | 1.52 | -0.09 |
| Nov | 0.57 | 0.63 | -0.06 |
| Dec | 0.48 | 0.69 | -0.21 |
18.86 | 19.88 | -1.02 |