| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 5.01 | 5.28 | -0.27 |
| Feb | 4.88 | 5.17 | -0.29 |
| Mar | 3.72 | 3.91 | -0.19 |
| Apr | 1.59 | 1.90 | -0.31 |
| May | 0.67 | 0.68 | -0.01 |
| Jun | 0.13 | 0.17 | -0.04 |
| Jul | 0.02 | 0.02 | 0.00 |
| Aug | 0.03 | 0.04 | -0.01 |
| Sep | 0.07 | 0.09 | -0.02 |
| Oct | 1.00 | 1.14 | -0.14 |
| Nov | 2.51 | 2.60 | -0.09 |
| Dec | 4.91 | 5.39 | -0.48 |
24.54 | 26.39 | -1.85 |