| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.93 | 5.18 | -0.25 |
| Feb | 4.92 | 5.04 | -0.12 |
| Mar | 5.06 | 5.21 | -0.15 |
| Apr | 4.14 | 4.37 | -0.23 |
| May | 3.99 | 4.06 | -0.07 |
| Jun | 4.76 | 4.62 | 0.14 |
| Jul | 4.58 | 5.12 | -0.54 |
| Aug | 4.59 | 4.85 | -0.26 |
| Sep | 3.98 | 4.16 | -0.18 |
| Oct | 3.79 | 3.83 | -0.04 |
| Nov | 4.33 | 4.37 | -0.04 |
| Dec | 4.86 | 4.94 | -0.08 |
53.93 | 55.75 | -1.82 |