| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.07 | 4.37 | -0.30 |
| Feb | 3.56 | 3.80 | -0.24 |
| Mar | 5.02 | 5.11 | -0.09 |
| Apr | 4.33 | 4.40 | -0.07 |
| May | 3.49 | 3.50 | -0.01 |
| Jun | 3.60 | 3.61 | -0.01 |
| Jul | 2.93 | 2.88 | 0.05 |
| Aug | 3.62 | 3.73 | -0.11 |
| Sep | 4.13 | 4.10 | 0.03 |
| Oct | 4.96 | 4.73 | 0.23 |
| Nov | 4.40 | 4.32 | 0.08 |
| Dec | 4.88 | 5.33 | -0.45 |
48.99 | 49.88 | -0.89 |