| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.38 | 0.41 | -0.03 |
| Feb | 0.56 | 0.55 | 0.01 |
| Mar | 1.13 | 1.05 | 0.08 |
| Apr | 2.06 | 2.07 | -0.01 |
| May | 2.95 | 3.02 | -0.07 |
| Jun | 2.87 | 2.83 | 0.04 |
| Jul | 2.10 | 2.08 | 0.02 |
| Aug | 1.64 | 1.61 | 0.03 |
| Sep | 1.49 | 1.51 | -0.02 |
| Oct | 1.38 | 1.44 | -0.06 |
| Nov | 0.58 | 0.61 | -0.03 |
| Dec | 0.50 | 0.49 | 0.01 |
17.64 | 17.67 | -0.03 |