| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.43 | 3.60 | -0.17 |
| Feb | 2.92 | 2.98 | -0.06 |
| Mar | 3.88 | 3.94 | -0.06 |
| Apr | 3.64 | 4.04 | -0.40 |
| May | 3.65 | 3.63 | 0.02 |
| Jun | 4.06 | 3.81 | 0.25 |
| Jul | 4.20 | 4.11 | 0.09 |
| Aug | 3.89 | 4.43 | -0.54 |
| Sep | 3.88 | 3.97 | -0.09 |
| Oct | 3.01 | 3.30 | -0.29 |
| Nov | 3.19 | 3.31 | -0.12 |
| Dec | 3.50 | 3.85 | -0.35 |
43.25 | 44.97 | -1.72 |