| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.51 | 3.48 | 0.03 |
| Feb | 2.86 | 2.84 | 0.02 |
| Mar | 3.99 | 4.04 | -0.05 |
| Apr | 3.60 | 3.69 | -0.09 |
| May | 3.83 | 3.82 | 0.01 |
| Jun | 4.57 | 4.30 | 0.27 |
| Jul | 5.14 | 5.23 | -0.09 |
| Aug | 4.88 | 4.98 | -0.10 |
| Sep | 4.70 | 5.04 | -0.34 |
| Oct | 4.03 | 4.37 | -0.34 |
| Nov | 3.07 | 3.06 | 0.01 |
| Dec | 3.60 | 3.67 | -0.07 |
47.78 | 48.52 | -0.74 |