| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.85 | 0.87 | -0.02 |
| Feb | 0.95 | 0.88 | 0.07 |
| Mar | 1.59 | 1.52 | 0.07 |
| Apr | 2.81 | 2.91 | -0.10 |
| May | 4.00 | 3.91 | 0.09 |
| Jun | 4.54 | 4.63 | -0.09 |
| Jul | 4.43 | 4.30 | 0.13 |
| Aug | 4.19 | 4.05 | 0.14 |
| Sep | 3.48 | 3.39 | 0.09 |
| Oct | 2.96 | 2.93 | 0.03 |
| Nov | 1.71 | 1.66 | 0.05 |
| Dec | 1.19 | 1.24 | -0.05 |
32.70 | 32.29 | 0.41 |