| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.44 | 0.41 | 0.03 |
| Feb | 0.69 | 0.66 | 0.03 |
| Mar | 1.14 | 1.20 | -0.06 |
| Apr | 2.46 | 2.57 | -0.11 |
| May | 3.57 | 3.59 | -0.02 |
| Jun | 3.82 | 3.88 | -0.06 |
| Jul | 3.21 | 3.25 | -0.04 |
| Aug | 2.52 | 2.44 | 0.08 |
| Sep | 2.04 | 1.85 | 0.19 |
| Oct | 1.71 | 1.76 | -0.05 |
| Nov | 0.64 | 0.62 | 0.02 |
| Dec | 0.52 | 0.52 | 0.00 |
22.76 | 22.75 | 0.01 |