| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.58 | 0.56 | 0.02 |
| Feb | 0.71 | 0.63 | 0.08 |
| Mar | 1.25 | 1.15 | 0.10 |
| Apr | 2.44 | 2.38 | 0.06 |
| May | 3.31 | 3.36 | -0.05 |
| Jun | 4.07 | 4.10 | -0.03 |
| Jul | 3.37 | 3.41 | -0.04 |
| Aug | 3.16 | 3.01 | 0.15 |
| Sep | 2.69 | 2.72 | -0.03 |
| Oct | 2.13 | 2.13 | 0.00 |
| Nov | 0.96 | 0.88 | 0.08 |
| Dec | 0.73 | 0.67 | 0.06 |
25.40 | 25.00 | 0.40 |