| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.52 | 0.52 | 0.00 |
| Feb | 0.57 | 0.61 | -0.04 |
| Mar | 0.88 | 0.89 | -0.01 |
| Apr | 1.85 | 1.85 | 0.00 |
| May | 3.08 | 3.32 | -0.24 |
| Jun | 3.59 | 3.63 | -0.04 |
| Jul | 3.19 | 3.26 | -0.07 |
| Aug | 2.28 | 2.34 | -0.06 |
| Sep | 2.09 | 2.11 | -0.02 |
| Oct | 1.91 | 1.92 | -0.01 |
| Nov | 0.69 | 0.70 | -0.01 |
| Dec | 0.58 | 0.60 | -0.02 |
21.23 | 21.75 | -0.52 |