| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.92 | 4.18 | -0.26 |
| Feb | 3.49 | 3.63 | -0.14 |
| Mar | 4.91 | 5.25 | -0.34 |
| Apr | 4.35 | 4.60 | -0.25 |
| May | 3.43 | 3.52 | -0.09 |
| Jun | 3.82 | 4.01 | -0.19 |
| Jul | 3.24 | 3.32 | -0.08 |
| Aug | 3.57 | 3.73 | -0.16 |
| Sep | 3.98 | 3.93 | 0.05 |
| Oct | 4.45 | 4.81 | -0.36 |
| Nov | 4.15 | 4.32 | -0.17 |
| Dec | 4.70 | 5.04 | -0.34 |
48.01 | 50.34 | -2.33 |