| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 5.01 | 4.97 | 0.04 |
| Feb | 4.89 | 4.84 | 0.05 |
| Mar | 5.05 | 4.98 | 0.07 |
| Apr | 4.15 | 4.20 | -0.05 |
| May | 4.22 | 4.15 | 0.07 |
| Jun | 4.64 | 4.63 | 0.01 |
| Jul | 4.44 | 4.41 | 0.03 |
| Aug | 4.93 | 4.80 | 0.13 |
| Sep | 3.97 | 4.07 | -0.10 |
| Oct | 3.93 | 3.78 | 0.15 |
| Nov | 4.26 | 4.22 | 0.04 |
| Dec | 4.89 | 4.87 | 0.02 |
54.38 | 53.92 | 0.46 |