| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.56 | 0.59 | -0.03 |
| Feb | 0.60 | 0.62 | -0.02 |
| Mar | 1.37 | 1.34 | 0.03 |
| Apr | 1.92 | 1.85 | 0.07 |
| May | 3.00 | 3.07 | -0.07 |
| Jun | 3.48 | 3.35 | 0.13 |
| Jul | 3.18 | 2.99 | 0.19 |
| Aug | 2.96 | 3.04 | -0.08 |
| Sep | 1.45 | 1.45 | 0.00 |
| Oct | 1.96 | 1.92 | 0.04 |
| Nov | 0.76 | 0.76 | 0.00 |
| Dec | 0.87 | 0.90 | -0.03 |
22.11 | 21.88 | 0.23 |