| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.72 | 3.74 | -0.02 |
| Feb | 3.15 | 3.30 | -0.15 |
| Mar | 4.09 | 4.29 | -0.20 |
| Apr | 3.86 | 4.15 | -0.29 |
| May | 4.07 | 4.13 | -0.06 |
| Jun | 4.80 | 4.78 | 0.02 |
| Jul | 4.70 | 4.52 | 0.18 |
| Aug | 4.59 | 4.68 | -0.09 |
| Sep | 4.92 | 4.88 | 0.04 |
| Oct | 4.95 | 5.37 | -0.42 |
| Nov | 3.94 | 4.03 | -0.09 |
| Dec | 4.53 | 4.76 | -0.23 |
51.32 | 52.63 | -1.31 |