| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.01 | 3.02 | -0.01 |
| Feb | 2.58 | 2.56 | 0.02 |
| Mar | 3.86 | 3.82 | 0.04 |
| Apr | 3.54 | 3.44 | 0.10 |
| May | 3.91 | 4.02 | -0.11 |
| Jun | 3.98 | 3.80 | 0.18 |
| Jul | 4.42 | 4.09 | 0.33 |
| Aug | 3.72 | 3.86 | -0.14 |
| Sep | 4.76 | 4.83 | -0.07 |
| Oct | 3.84 | 3.87 | -0.03 |
| Nov | 3.06 | 3.08 | -0.02 |
| Dec | 3.44 | 3.52 | -0.08 |
44.12 | 43.91 | 0.21 |