| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.71 | 0.71 | 0.00 |
| Feb | 0.82 | 0.83 | -0.01 |
| Mar | 1.56 | 1.53 | 0.03 |
| Apr | 3.04 | 3.14 | -0.10 |
| May | 4.16 | 4.22 | -0.06 |
| Jun | 4.85 | 5.05 | -0.20 |
| Jul | 3.64 | 3.56 | 0.08 |
| Aug | 3.52 | 3.67 | -0.15 |
| Sep | 3.16 | 3.15 | 0.01 |
| Oct | 2.43 | 2.37 | 0.06 |
| Nov | 1.38 | 1.35 | 0.03 |
| Dec | 0.90 | 0.93 | -0.03 |
30.17 | 30.51 | -0.34 |