| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.57 | 0.53 | 0.04 |
| Feb | 0.80 | 0.76 | 0.04 |
| Mar | 1.31 | 1.29 | 0.02 |
| Apr | 2.11 | 2.05 | 0.06 |
| May | 3.80 | 3.59 | 0.21 |
| Jun | 3.37 | 3.13 | 0.24 |
| Jul | 3.88 | 3.89 | -0.01 |
| Aug | 3.40 | 3.34 | 0.06 |
| Sep | 2.01 | 2.05 | -0.04 |
| Oct | 1.72 | 1.67 | 0.05 |
| Nov | 0.91 | 0.88 | 0.03 |
| Dec | 0.83 | 0.82 | 0.01 |
24.71 | 24.00 | 0.71 |