| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.39 | 0.44 | -0.05 |
| Feb | 0.55 | 0.57 | -0.02 |
| Mar | 1.16 | 1.12 | 0.04 |
| Apr | 2.09 | 1.99 | 0.10 |
| May | 3.24 | 3.26 | -0.02 |
| Jun | 2.93 | 2.86 | 0.07 |
| Jul | 3.59 | 3.82 | -0.23 |
| Aug | 3.00 | 2.97 | 0.03 |
| Sep | 1.80 | 1.60 | 0.20 |
| Oct | 1.72 | 1.69 | 0.03 |
| Nov | 0.75 | 0.75 | 0.00 |
| Dec | 0.55 | 0.65 | -0.10 |
21.77 | 21.72 | 0.05 |