| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.71 | 0.74 | -0.03 |
| Feb | 0.80 | 0.86 | -0.06 |
| Mar | 1.46 | 1.56 | -0.10 |
| Apr | 2.67 | 2.72 | -0.05 |
| May | 4.03 | 4.04 | -0.01 |
| Jun | 4.31 | 4.27 | 0.04 |
| Jul | 4.22 | 4.21 | 0.01 |
| Aug | 3.96 | 4.01 | -0.05 |
| Sep | 3.20 | 3.19 | 0.01 |
| Oct | 2.77 | 2.81 | -0.04 |
| Nov | 1.49 | 1.57 | -0.08 |
| Dec | 1.01 | 1.09 | -0.08 |
30.63 | 31.07 | -0.44 |