| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.09 | 4.03 | 0.06 |
| Feb | 4.60 | 4.61 | -0.01 |
| Mar | 4.78 | 4.83 | -0.05 |
| Apr | 4.88 | 5.03 | -0.15 |
| May | 5.05 | 5.27 | -0.22 |
| Jun | 4.23 | 4.27 | -0.04 |
| Jul | 4.32 | 4.56 | -0.24 |
| Aug | 3.63 | 3.63 | 0.00 |
| Sep | 3.71 | 3.85 | -0.14 |
| Oct | 3.54 | 3.62 | -0.08 |
| Nov | 3.64 | 3.73 | -0.09 |
| Dec | 4.77 | 4.81 | -0.04 |
51.24 | 52.24 | -1.00 |