| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.71 | 0.74 | -0.03 |
| Feb | 0.80 | 0.83 | -0.03 |
| Mar | 1.43 | 1.49 | -0.06 |
| Apr | 2.58 | 2.68 | -0.10 |
| May | 3.38 | 3.42 | -0.04 |
| Jun | 4.52 | 4.74 | -0.22 |
| Jul | 3.86 | 4.00 | -0.14 |
| Aug | 3.73 | 4.08 | -0.35 |
| Sep | 2.93 | 3.03 | -0.10 |
| Oct | 2.33 | 2.54 | -0.21 |
| Nov | 1.32 | 1.37 | -0.05 |
| Dec | 0.88 | 0.93 | -0.05 |
28.47 | 29.85 | -1.38 |