| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.56 | 3.68 | -0.12 |
| Feb | 2.85 | 2.98 | -0.13 |
| Mar | 3.87 | 4.07 | -0.20 |
| Apr | 3.67 | 3.92 | -0.25 |
| May | 3.71 | 3.71 | 0.00 |
| Jun | 4.30 | 4.30 | 0.00 |
| Jul | 4.02 | 3.98 | 0.04 |
| Aug | 4.29 | 4.14 | 0.15 |
| Sep | 4.38 | 4.68 | -0.30 |
| Oct | 3.31 | 3.27 | 0.04 |
| Nov | 3.23 | 3.32 | -0.09 |
| Dec | 3.32 | 3.47 | -0.15 |
44.51 | 45.52 | -1.01 |