| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.92 | 3.07 | -0.15 |
| Feb | 2.83 | 2.93 | -0.10 |
| Mar | 3.28 | 3.38 | -0.10 |
| Apr | 3.53 | 3.72 | -0.19 |
| May | 3.70 | 3.74 | -0.04 |
| Jun | 4.06 | 4.25 | -0.19 |
| Jul | 4.14 | 4.28 | -0.14 |
| Aug | 3.79 | 3.89 | -0.10 |
| Sep | 3.71 | 3.62 | 0.09 |
| Oct | 4.72 | 4.93 | -0.21 |
| Nov | 3.60 | 3.71 | -0.11 |
| Dec | 3.82 | 4.03 | -0.21 |
44.10 | 45.55 | -1.45 |