| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.48 | 0.46 | 0.02 |
| Feb | 0.61 | 0.67 | -0.06 |
| Mar | 1.19 | 1.23 | -0.04 |
| Apr | 2.08 | 2.02 | 0.06 |
| May | 3.47 | 3.40 | 0.07 |
| Jun | 2.80 | 2.85 | -0.05 |
| Jul | 3.65 | 3.87 | -0.22 |
| Aug | 3.08 | 3.14 | -0.06 |
| Sep | 1.81 | 1.98 | -0.17 |
| Oct | 1.68 | 1.70 | -0.02 |
| Nov | 0.78 | 0.79 | -0.01 |
| Dec | 0.64 | 0.70 | -0.06 |
22.27 | 22.81 | -0.54 |