| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.91 | 3.92 | -0.01 |
| Feb | 3.57 | 3.47 | 0.10 |
| Mar | 4.82 | 4.79 | 0.03 |
| Apr | 4.30 | 4.39 | -0.09 |
| May | 3.67 | 3.68 | -0.01 |
| Jun | 4.17 | 4.15 | 0.02 |
| Jul | 3.47 | 3.46 | 0.01 |
| Aug | 3.64 | 3.69 | -0.05 |
| Sep | 3.90 | 3.93 | -0.03 |
| Oct | 4.88 | 4.88 | 0.00 |
| Nov | 4.07 | 4.06 | 0.01 |
| Dec | 4.85 | 4.87 | -0.02 |
49.25 | 49.29 | -0.04 |