| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.63 | 0.64 | -0.01 |
| Feb | 0.68 | 0.71 | -0.03 |
| Mar | 1.45 | 1.46 | -0.01 |
| Apr | 2.90 | 2.82 | 0.08 |
| May | 4.49 | 4.60 | -0.11 |
| Jun | 4.44 | 4.66 | -0.22 |
| Jul | 3.25 | 3.34 | -0.09 |
| Aug | 3.42 | 3.38 | 0.04 |
| Sep | 2.48 | 2.50 | -0.02 |
| Oct | 2.26 | 2.27 | -0.01 |
| Nov | 1.18 | 1.27 | -0.09 |
| Dec | 0.91 | 0.93 | -0.02 |
28.09 | 28.58 | -0.49 |