| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.44 | 3.44 | 0.00 |
| Feb | 2.80 | 2.80 | 0.00 |
| Mar | 4.03 | 3.97 | 0.06 |
| Apr | 3.56 | 3.55 | 0.01 |
| May | 4.00 | 4.02 | -0.02 |
| Jun | 4.47 | 4.40 | 0.07 |
| Jul | 5.00 | 4.92 | 0.08 |
| Aug | 4.85 | 4.92 | -0.07 |
| Sep | 4.86 | 4.81 | 0.05 |
| Oct | 3.81 | 3.93 | -0.12 |
| Nov | 3.12 | 3.13 | -0.01 |
| Dec | 3.60 | 3.62 | -0.02 |
47.54 | 47.51 | 0.03 |