| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.61 | 3.63 | -0.02 |
| Feb | 2.99 | 2.93 | 0.06 |
| Mar | 4.08 | 3.99 | 0.09 |
| Apr | 3.63 | 3.59 | 0.04 |
| May | 3.79 | 3.64 | 0.15 |
| Jun | 4.54 | 4.62 | -0.08 |
| Jul | 4.92 | 4.89 | 0.03 |
| Aug | 4.79 | 4.67 | 0.12 |
| Sep | 5.07 | 5.27 | -0.20 |
| Oct | 3.56 | 3.65 | -0.09 |
| Nov | 3.45 | 3.39 | 0.06 |
| Dec | 3.51 | 3.46 | 0.05 |
47.94 | 47.73 | 0.21 |