| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.70 | 3.97 | -0.27 |
| Feb | 3.59 | 3.77 | -0.18 |
| Mar | 2.71 | 2.88 | -0.17 |
| Apr | 1.44 | 1.54 | -0.10 |
| May | 0.93 | 0.83 | 0.10 |
| Jun | 0.19 | 0.21 | -0.02 |
| Jul | 0.01 | 0.00 | 0.01 |
| Aug | 0.02 | 0.03 | -0.01 |
| Sep | 0.08 | 0.10 | -0.02 |
| Oct | 0.87 | 0.98 | -0.11 |
| Nov | 1.75 | 1.80 | -0.05 |
| Dec | 3.28 | 3.59 | -0.31 |
18.57 | 19.70 | -1.13 |