| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.39 | 1.43 | -0.04 |
| Feb | 1.14 | 1.16 | -0.02 |
| Mar | 1.89 | 1.80 | 0.09 |
| Apr | 3.05 | 3.10 | -0.05 |
| May | 3.53 | 3.43 | 0.10 |
| Jun | 4.33 | 3.94 | 0.39 |
| Jul | 3.82 | 3.60 | 0.22 |
| Aug | 3.46 | 3.45 | 0.01 |
| Sep | 3.50 | 3.38 | 0.12 |
| Oct | 2.94 | 2.88 | 0.06 |
| Nov | 1.99 | 1.86 | 0.13 |
| Dec | 1.70 | 1.67 | 0.03 |
32.74 | 31.70 | 1.04 |