| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.37 | 0.39 | -0.02 |
| Feb | 0.48 | 0.45 | 0.03 |
| Mar | 0.81 | 0.86 | -0.05 |
| Apr | 1.72 | 1.73 | -0.01 |
| May | 2.67 | 2.74 | -0.07 |
| Jun | 2.59 | 2.58 | 0.01 |
| Jul | 3.07 | 3.13 | -0.06 |
| Aug | 2.44 | 2.65 | -0.21 |
| Sep | 1.27 | 1.19 | 0.08 |
| Oct | 1.20 | 1.23 | -0.03 |
| Nov | 0.54 | 0.48 | 0.06 |
| Dec | 0.40 | 0.41 | -0.01 |
17.56 | 17.84 | -0.28 |