| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.54 | 3.81 | -0.27 |
| Feb | 2.95 | 3.07 | -0.12 |
| Mar | 3.81 | 3.76 | 0.05 |
| Apr | 3.84 | 4.04 | -0.20 |
| May | 4.52 | 4.58 | -0.06 |
| Jun | 4.52 | 4.50 | 0.02 |
| Jul | 3.89 | 4.38 | -0.49 |
| Aug | 3.96 | 3.78 | 0.18 |
| Sep | 4.67 | 4.91 | -0.24 |
| Oct | 3.50 | 3.31 | 0.19 |
| Nov | 3.46 | 3.30 | 0.16 |
| Dec | 3.58 | 3.80 | -0.22 |
46.24 | 47.24 | -1.00 |