| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.69 | 0.72 | -0.03 |
| Feb | 0.78 | 0.79 | -0.01 |
| Mar | 1.61 | 1.59 | 0.02 |
| Apr | 2.90 | 2.93 | -0.03 |
| May | 4.05 | 4.16 | -0.11 |
| Jun | 4.82 | 5.00 | -0.18 |
| Jul | 3.77 | 3.70 | 0.07 |
| Aug | 4.06 | 3.83 | 0.23 |
| Sep | 3.14 | 3.14 | 0.00 |
| Oct | 2.36 | 2.34 | 0.02 |
| Nov | 1.43 | 1.29 | 0.14 |
| Dec | 0.88 | 0.97 | -0.09 |
30.49 | 30.46 | 0.03 |