| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.66 | 0.63 | 0.03 |
| Feb | 0.74 | 0.66 | 0.08 |
| Mar | 1.42 | 1.41 | 0.01 |
| Apr | 2.42 | 2.38 | 0.04 |
| May | 4.66 | 4.82 | -0.16 |
| Jun | 3.98 | 4.04 | -0.06 |
| Jul | 3.77 | 3.63 | 0.14 |
| Aug | 3.50 | 3.56 | -0.06 |
| Sep | 2.53 | 2.66 | -0.13 |
| Oct | 2.13 | 2.13 | 0.00 |
| Nov | 1.22 | 1.14 | 0.08 |
| Dec | 0.98 | 0.94 | 0.04 |
28.01 | 28.00 | 0.01 |