| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.42 | 0.48 | -0.06 |
| Feb | 0.58 | 0.60 | -0.02 |
| Mar | 1.01 | 1.05 | -0.04 |
| Apr | 2.50 | 2.59 | -0.09 |
| May | 3.42 | 3.49 | -0.07 |
| Jun | 3.75 | 3.91 | -0.16 |
| Jul | 2.65 | 2.72 | -0.07 |
| Aug | 2.67 | 2.65 | 0.02 |
| Sep | 2.12 | 2.15 | -0.03 |
| Oct | 1.74 | 1.83 | -0.09 |
| Nov | 0.69 | 0.75 | -0.06 |
| Dec | 0.49 | 0.56 | -0.07 |
22.04 | 22.78 | -0.74 |