| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.47 | 3.56 | -0.09 |
| Feb | 2.79 | 2.78 | 0.01 |
| Mar | 4.17 | 4.29 | -0.12 |
| Apr | 3.52 | 3.63 | -0.11 |
| May | 3.83 | 3.80 | 0.03 |
| Jun | 4.13 | 4.29 | -0.16 |
| Jul | 4.81 | 4.82 | -0.01 |
| Aug | 4.37 | 4.57 | -0.20 |
| Sep | 3.81 | 4.00 | -0.19 |
| Oct | 3.98 | 4.01 | -0.03 |
| Nov | 3.20 | 3.29 | -0.09 |
| Dec | 4.15 | 4.34 | -0.19 |
46.23 | 47.38 | -1.15 |