| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.14 | 4.22 | -0.08 |
| Feb | 3.59 | 3.70 | -0.11 |
| Mar | 4.58 | 4.58 | 0.00 |
| Apr | 3.96 | 3.95 | 0.01 |
| May | 3.69 | 3.71 | -0.02 |
| Jun | 4.28 | 4.10 | 0.18 |
| Jul | 3.79 | 3.89 | -0.10 |
| Aug | 4.41 | 4.36 | 0.05 |
| Sep | 3.77 | 3.76 | 0.01 |
| Oct | 3.45 | 3.50 | -0.05 |
| Nov | 3.63 | 3.70 | -0.07 |
| Dec | 4.31 | 4.44 | -0.13 |
47.60 | 47.91 | -0.31 |