| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.60 | 1.48 | 0.12 |
| Feb | 1.16 | 1.14 | 0.02 |
| Mar | 1.84 | 1.76 | 0.08 |
| Apr | 3.05 | 3.04 | 0.01 |
| May | 3.49 | 3.42 | 0.07 |
| Jun | 3.87 | 4.04 | -0.17 |
| Jul | 3.42 | 3.53 | -0.11 |
| Aug | 3.37 | 3.38 | -0.01 |
| Sep | 3.09 | 3.15 | -0.06 |
| Oct | 3.03 | 2.87 | 0.16 |
| Nov | 2.18 | 2.01 | 0.17 |
| Dec | 1.80 | 1.67 | 0.13 |
31.90 | 31.49 | 0.41 |