| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.50 | 4.44 | 0.06 |
| Feb | 3.91 | 3.92 | -0.01 |
| Mar | 4.67 | 4.71 | -0.04 |
| Apr | 4.38 | 4.42 | -0.04 |
| May | 4.18 | 4.32 | -0.14 |
| Jun | 4.44 | 4.51 | -0.07 |
| Jul | 4.66 | 4.67 | -0.01 |
| Aug | 4.50 | 4.84 | -0.34 |
| Sep | 4.48 | 4.41 | 0.07 |
| Oct | 3.90 | 3.88 | 0.02 |
| Nov | 4.01 | 4.09 | -0.08 |
| Dec | 4.69 | 4.87 | -0.18 |
52.32 | 53.08 | -0.76 |