| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.50 | 1.49 | 0.01 |
| Feb | 1.83 | 1.64 | 0.19 |
| Mar | 2.53 | 2.46 | 0.07 |
| Apr | 2.31 | 2.09 | 0.22 |
| May | 4.18 | 3.82 | 0.36 |
| Jun | 3.41 | 2.87 | 0.54 |
| Jul | 1.85 | 1.69 | 0.16 |
| Aug | 1.97 | 1.73 | 0.24 |
| Sep | 2.79 | 2.48 | 0.31 |
| Oct | 3.17 | 2.94 | 0.23 |
| Nov | 2.08 | 2.10 | -0.02 |
| Dec | 1.71 | 1.83 | -0.12 |
29.33 | 27.14 | 2.19 |