| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.47 | 3.42 | 0.05 |
| Feb | 3.71 | 3.73 | -0.02 |
| Mar | 4.76 | 4.80 | -0.04 |
| Apr | 4.73 | 4.66 | 0.07 |
| May | 5.54 | 5.68 | -0.14 |
| Jun | 3.92 | 3.96 | -0.04 |
| Jul | 3.36 | 3.31 | 0.05 |
| Aug | 2.95 | 2.90 | 0.05 |
| Sep | 3.81 | 3.70 | 0.11 |
| Oct | 4.66 | 4.83 | -0.17 |
| Nov | 4.41 | 4.37 | 0.04 |
| Dec | 4.57 | 4.62 | -0.05 |
49.89 | 49.98 | -0.09 |