| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.40 | 0.37 | 0.03 |
| Feb | 0.52 | 0.51 | 0.01 |
| Mar | 0.93 | 0.93 | 0.00 |
| Apr | 1.82 | 1.85 | -0.03 |
| May | 2.83 | 2.89 | -0.06 |
| Jun | 2.88 | 2.69 | 0.19 |
| Jul | 3.37 | 3.63 | -0.26 |
| Aug | 2.91 | 3.07 | -0.16 |
| Sep | 1.49 | 1.48 | 0.01 |
| Oct | 1.47 | 1.49 | -0.02 |
| Nov | 0.65 | 0.65 | 0.00 |
| Dec | 0.48 | 0.53 | -0.05 |
19.75 | 20.09 | -0.34 |