| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.55 | 3.75 | -0.20 |
| Feb | 2.90 | 2.99 | -0.09 |
| Mar | 3.80 | 4.03 | -0.23 |
| Apr | 3.74 | 3.90 | -0.16 |
| May | 3.98 | 4.09 | -0.11 |
| Jun | 4.22 | 4.29 | -0.07 |
| Jul | 4.10 | 4.18 | -0.08 |
| Aug | 4.09 | 4.20 | -0.11 |
| Sep | 4.51 | 4.69 | -0.18 |
| Oct | 3.39 | 3.38 | 0.01 |
| Nov | 3.15 | 3.24 | -0.09 |
| Dec | 3.47 | 3.63 | -0.16 |
44.90 | 46.37 | -1.47 |