| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.45 | 0.45 | 0.00 |
| Feb | 0.61 | 0.68 | -0.07 |
| Mar | 1.21 | 1.24 | -0.03 |
| Apr | 1.92 | 2.00 | -0.08 |
| May | 3.32 | 3.42 | -0.10 |
| Jun | 2.95 | 2.88 | 0.07 |
| Jul | 3.34 | 3.56 | -0.22 |
| Aug | 3.03 | 3.03 | 0.00 |
| Sep | 1.86 | 1.80 | 0.06 |
| Oct | 1.74 | 1.71 | 0.03 |
| Nov | 0.75 | 0.73 | 0.02 |
| Dec | 0.62 | 0.73 | -0.11 |
21.80 | 22.23 | -0.43 |