| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.42 | 3.44 | -0.02 |
| Feb | 2.99 | 3.05 | -0.06 |
| Mar | 3.75 | 3.84 | -0.09 |
| Apr | 3.88 | 3.87 | 0.01 |
| May | 4.43 | 4.46 | -0.03 |
| Jun | 4.60 | 4.65 | -0.05 |
| Jul | 4.65 | 4.57 | 0.08 |
| Aug | 3.79 | 3.78 | 0.01 |
| Sep | 3.45 | 3.48 | -0.03 |
| Oct | 3.02 | 3.05 | -0.03 |
| Nov | 3.01 | 2.96 | 0.05 |
| Dec | 3.54 | 3.47 | 0.07 |
44.53 | 44.62 | -0.09 |