| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.49 | 0.51 | -0.02 |
| Feb | 0.66 | 0.69 | -0.03 |
| Mar | 1.38 | 1.35 | 0.03 |
| Apr | 2.96 | 3.04 | -0.08 |
| May | 4.03 | 4.06 | -0.03 |
| Jun | 4.00 | 3.93 | 0.07 |
| Jul | 3.38 | 3.23 | 0.15 |
| Aug | 3.01 | 3.09 | -0.08 |
| Sep | 2.15 | 2.15 | 0.00 |
| Oct | 2.02 | 2.08 | -0.06 |
| Nov | 0.94 | 0.94 | 0.00 |
| Dec | 0.64 | 0.70 | -0.06 |
25.66 | 25.77 | -0.11 |