| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.38 | 0.35 | 0.03 |
| Feb | 0.42 | 0.38 | 0.04 |
| Mar | 0.80 | 0.81 | -0.01 |
| Apr | 1.76 | 1.73 | 0.03 |
| May | 2.56 | 2.73 | -0.17 |
| Jun | 2.62 | 2.65 | -0.03 |
| Jul | 3.01 | 2.83 | 0.18 |
| Aug | 2.58 | 2.67 | -0.09 |
| Sep | 1.25 | 1.24 | 0.01 |
| Oct | 1.17 | 1.18 | -0.01 |
| Nov | 0.53 | 0.46 | 0.07 |
| Dec | 0.40 | 0.36 | 0.04 |
17.48 | 17.39 | 0.09 |