| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.56 | 3.65 | -0.09 |
| Feb | 2.80 | 2.93 | -0.13 |
| Mar | 3.92 | 4.08 | -0.16 |
| Apr | 3.89 | 4.02 | -0.13 |
| May | 4.12 | 4.19 | -0.07 |
| Jun | 4.76 | 4.82 | -0.06 |
| Jul | 4.81 | 4.79 | 0.02 |
| Aug | 4.75 | 4.77 | -0.02 |
| Sep | 4.59 | 4.70 | -0.11 |
| Oct | 4.54 | 4.75 | -0.21 |
| Nov | 3.50 | 3.55 | -0.05 |
| Dec | 4.36 | 4.57 | -0.21 |
49.60 | 50.82 | -1.22 |