| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.92 | 4.05 | -0.13 |
| Feb | 3.75 | 3.79 | -0.04 |
| Mar | 2.87 | 3.02 | -0.15 |
| Apr | 1.60 | 1.63 | -0.03 |
| May | 1.15 | 0.88 | 0.27 |
| Jun | 0.22 | 0.22 | 0.00 |
| Jul | 0.01 | 0.00 | 0.01 |
| Aug | 0.02 | 0.03 | -0.01 |
| Sep | 0.08 | 0.12 | -0.04 |
| Oct | 0.91 | 1.02 | -0.11 |
| Nov | 1.80 | 1.89 | -0.09 |
| Dec | 3.26 | 3.72 | -0.46 |
19.59 | 20.37 | -0.78 |