| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.37 | 0.44 | -0.07 |
| Feb | 0.43 | 0.48 | -0.05 |
| Mar | 0.80 | 0.95 | -0.15 |
| Apr | 1.75 | 1.80 | -0.05 |
| May | 2.60 | 2.88 | -0.28 |
| Jun | 2.63 | 3.00 | -0.37 |
| Jul | 3.08 | 3.06 | 0.02 |
| Aug | 2.56 | 2.90 | -0.34 |
| Sep | 1.33 | 1.28 | 0.05 |
| Oct | 1.21 | 1.25 | -0.04 |
| Nov | 0.53 | 0.54 | -0.01 |
| Dec | 0.40 | 0.46 | -0.06 |
17.69 | 19.04 | -1.35 |