| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.51 | 0.49 | 0.02 |
| Feb | 0.70 | 0.64 | 0.06 |
| Mar | 1.32 | 1.30 | 0.02 |
| Apr | 1.89 | 1.90 | -0.01 |
| May | 3.22 | 3.26 | -0.04 |
| Jun | 3.15 | 3.15 | 0.00 |
| Jul | 3.60 | 3.52 | 0.08 |
| Aug | 2.90 | 2.93 | -0.03 |
| Sep | 1.69 | 1.69 | 0.00 |
| Oct | 1.68 | 1.69 | -0.01 |
| Nov | 0.76 | 0.81 | -0.05 |
| Dec | 0.77 | 0.84 | -0.07 |
22.19 | 22.22 | -0.03 |