| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.71 | 0.69 | 0.02 |
| Feb | 0.78 | 0.78 | 0.00 |
| Mar | 1.44 | 1.38 | 0.06 |
| Apr | 2.57 | 2.53 | 0.04 |
| May | 3.44 | 3.35 | 0.09 |
| Jun | 4.63 | 4.67 | -0.04 |
| Jul | 3.82 | 3.83 | -0.01 |
| Aug | 3.80 | 4.10 | -0.30 |
| Sep | 2.90 | 2.91 | -0.01 |
| Oct | 2.34 | 2.42 | -0.08 |
| Nov | 1.31 | 1.30 | 0.01 |
| Dec | 0.87 | 0.89 | -0.02 |
28.61 | 28.85 | -0.24 |