| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.68 | 2.66 | 0.02 |
| Feb | 2.28 | 2.24 | 0.04 |
| Mar | 3.20 | 3.18 | 0.02 |
| Apr | 3.96 | 4.02 | -0.06 |
| May | 4.38 | 4.31 | 0.07 |
| Jun | 4.67 | 4.56 | 0.11 |
| Jul | 4.08 | 4.23 | -0.15 |
| Aug | 3.69 | 3.68 | 0.01 |
| Sep | 3.02 | 3.13 | -0.11 |
| Oct | 3.03 | 3.03 | 0.00 |
| Nov | 3.22 | 3.20 | 0.02 |
| Dec | 2.62 | 2.57 | 0.05 |
40.83 | 40.81 | 0.02 |