| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.69 | 0.68 | 0.01 |
| Feb | 0.84 | 0.87 | -0.03 |
| Mar | 1.77 | 1.66 | 0.11 |
| Apr | 2.59 | 2.57 | 0.02 |
| May | 2.64 | 2.64 | 0.00 |
| Jun | 1.81 | 1.75 | 0.06 |
| Jul | 1.89 | 1.64 | 0.25 |
| Aug | 1.84 | 1.75 | 0.09 |
| Sep | 1.48 | 1.61 | -0.13 |
| Oct | 1.32 | 1.29 | 0.03 |
| Nov | 0.98 | 0.95 | 0.03 |
| Dec | 0.67 | 0.69 | -0.02 |
18.52 | 18.10 | 0.42 |