| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.44 | 3.59 | -0.15 |
| Feb | 2.82 | 2.97 | -0.15 |
| Mar | 4.05 | 4.09 | -0.04 |
| Apr | 4.11 | 3.95 | 0.16 |
| May | 3.89 | 3.92 | -0.03 |
| Jun | 4.52 | 4.80 | -0.28 |
| Jul | 4.47 | 4.41 | 0.06 |
| Aug | 4.28 | 4.51 | -0.23 |
| Sep | 4.58 | 4.63 | -0.05 |
| Oct | 4.56 | 4.58 | -0.02 |
| Nov | 3.64 | 3.80 | -0.16 |
| Dec | 4.08 | 4.38 | -0.30 |
48.44 | 49.63 | -1.19 |