| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.01 | 0.98 | 0.03 |
| Feb | 1.08 | 1.01 | 0.07 |
| Mar | 1.95 | 1.88 | 0.07 |
| Apr | 3.12 | 2.99 | 0.13 |
| May | 4.22 | 4.14 | 0.08 |
| Jun | 5.02 | 5.05 | -0.03 |
| Jul | 4.03 | 3.98 | 0.05 |
| Aug | 4.38 | 4.37 | 0.01 |
| Sep | 3.68 | 3.62 | 0.06 |
| Oct | 2.84 | 2.71 | 0.13 |
| Nov | 1.82 | 1.74 | 0.08 |
| Dec | 1.36 | 1.36 | 0.00 |
34.51 | 33.83 | 0.68 |