| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.22 | 4.10 | 0.12 |
| Feb | 4.03 | 4.01 | 0.02 |
| Mar | 4.56 | 4.52 | 0.04 |
| Apr | 4.12 | 4.13 | -0.01 |
| May | 4.44 | 4.57 | -0.13 |
| Jun | 4.44 | 4.29 | 0.15 |
| Jul | 3.01 | 3.04 | -0.03 |
| Aug | 2.93 | 2.97 | -0.04 |
| Sep | 3.52 | 3.47 | 0.05 |
| Oct | 4.33 | 4.37 | -0.04 |
| Nov | 4.00 | 4.03 | -0.03 |
| Dec | 4.73 | 4.69 | 0.04 |
48.33 | 48.19 | 0.14 |