| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.69 | 0.77 | -0.08 |
| Feb | 0.74 | 0.84 | -0.10 |
| Mar | 1.47 | 1.50 | -0.03 |
| Apr | 2.61 | 2.80 | -0.19 |
| May | 3.87 | 4.13 | -0.26 |
| Jun | 4.71 | 4.80 | -0.09 |
| Jul | 3.82 | 3.78 | 0.04 |
| Aug | 4.00 | 4.34 | -0.34 |
| Sep | 3.12 | 3.12 | 0.00 |
| Oct | 2.34 | 2.37 | -0.03 |
| Nov | 1.44 | 1.47 | -0.03 |
| Dec | 0.98 | 1.10 | -0.12 |
29.79 | 31.02 | -1.23 |