| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.70 | 2.70 | 0.00 |
| Feb | 2.29 | 2.18 | 0.11 |
| Mar | 3.16 | 3.06 | 0.10 |
| Apr | 4.02 | 4.04 | -0.02 |
| May | 4.34 | 4.28 | 0.06 |
| Jun | 4.71 | 4.60 | 0.11 |
| Jul | 3.98 | 4.08 | -0.10 |
| Aug | 3.46 | 3.53 | -0.07 |
| Sep | 3.00 | 3.06 | -0.06 |
| Oct | 2.96 | 2.97 | -0.01 |
| Nov | 3.20 | 3.18 | 0.02 |
| Dec | 2.72 | 2.68 | 0.04 |
40.54 | 40.36 | 0.18 |