| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.40 | 0.42 | -0.02 |
| Feb | 0.57 | 0.61 | -0.04 |
| Mar | 1.15 | 1.22 | -0.07 |
| Apr | 2.47 | 2.64 | -0.17 |
| May | 3.93 | 4.09 | -0.16 |
| Jun | 3.69 | 3.82 | -0.13 |
| Jul | 3.10 | 3.28 | -0.18 |
| Aug | 2.75 | 2.77 | -0.02 |
| Sep | 1.88 | 1.93 | -0.05 |
| Oct | 1.87 | 1.83 | 0.04 |
| Nov | 0.76 | 0.76 | 0.00 |
| Dec | 0.51 | 0.54 | -0.03 |
23.08 | 23.91 | -0.83 |