| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.40 | 2.38 | 0.02 |
| Feb | 1.94 | 1.99 | -0.05 |
| Mar | 2.49 | 2.52 | -0.03 |
| Apr | 3.67 | 3.58 | 0.09 |
| May | 4.38 | 4.42 | -0.04 |
| Jun | 4.08 | 3.96 | 0.12 |
| Jul | 3.86 | 3.82 | 0.04 |
| Aug | 3.74 | 3.76 | -0.02 |
| Sep | 3.06 | 3.05 | 0.01 |
| Oct | 2.77 | 2.74 | 0.03 |
| Nov | 2.89 | 2.89 | 0.00 |
| Dec | 2.31 | 2.30 | 0.01 |
37.59 | 37.41 | 0.18 |