| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.20 | 4.28 | -0.08 |
| Feb | 3.64 | 3.74 | -0.10 |
| Mar | 5.30 | 5.37 | -0.07 |
| Apr | 4.45 | 4.50 | -0.05 |
| May | 3.59 | 3.64 | -0.05 |
| Jun | 3.81 | 3.76 | 0.05 |
| Jul | 3.21 | 3.23 | -0.02 |
| Aug | 3.62 | 3.65 | -0.03 |
| Sep | 4.19 | 3.89 | 0.30 |
| Oct | 4.98 | 4.83 | 0.15 |
| Nov | 4.49 | 4.40 | 0.09 |
| Dec | 4.86 | 5.09 | -0.23 |
50.34 | 50.38 | -0.04 |