| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.06 | 3.08 | -0.02 |
| Feb | 2.55 | 2.48 | 0.07 |
| Mar | 3.42 | 3.44 | -0.02 |
| Apr | 4.67 | 4.61 | 0.06 |
| May | 4.84 | 4.93 | -0.09 |
| Jun | 4.81 | 5.02 | -0.21 |
| Jul | 4.17 | 4.26 | -0.09 |
| Aug | 3.29 | 3.12 | 0.17 |
| Sep | 3.13 | 3.23 | -0.10 |
| Oct | 3.23 | 3.20 | 0.03 |
| Nov | 3.47 | 3.37 | 0.10 |
| Dec | 3.20 | 3.18 | 0.02 |
43.84 | 43.92 | -0.08 |