| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.81 | 2.01 | -0.20 |
| Feb | 1.85 | 2.08 | -0.23 |
| Mar | 1.32 | 1.46 | -0.14 |
| Apr | 0.62 | 0.66 | -0.04 |
| May | 0.33 | 0.46 | -0.13 |
| Jun | 0.33 | 0.35 | -0.02 |
| Jul | 2.95 | 2.67 | 0.28 |
| Aug | 2.98 | 3.36 | -0.38 |
| Sep | 1.89 | 1.99 | -0.10 |
| Oct | 0.96 | 1.05 | -0.09 |
| Nov | 1.14 | 1.16 | -0.02 |
| Dec | 1.93 | 1.93 | 0.00 |
18.11 | 19.18 | -1.07 |