| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.71 | 0.66 | 0.05 |
| Feb | 0.80 | 0.72 | 0.08 |
| Mar | 1.51 | 1.46 | 0.05 |
| Apr | 2.57 | 2.59 | -0.02 |
| May | 3.73 | 3.70 | 0.03 |
| Jun | 4.11 | 4.23 | -0.12 |
| Jul | 4.01 | 3.91 | 0.10 |
| Aug | 3.89 | 3.91 | -0.02 |
| Sep | 2.90 | 2.98 | -0.08 |
| Oct | 2.63 | 2.66 | -0.03 |
| Nov | 1.37 | 1.31 | 0.06 |
| Dec | 0.89 | 0.89 | 0.00 |
29.12 | 29.02 | 0.10 |