| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.14 | 4.11 | 0.03 |
| Feb | 4.65 | 4.59 | 0.06 |
| Mar | 4.86 | 4.83 | 0.03 |
| Apr | 4.88 | 4.94 | -0.06 |
| May | 5.02 | 5.24 | -0.22 |
| Jun | 4.28 | 4.32 | -0.04 |
| Jul | 4.41 | 4.54 | -0.13 |
| Aug | 3.74 | 3.69 | 0.05 |
| Sep | 3.81 | 3.86 | -0.05 |
| Oct | 3.53 | 3.56 | -0.03 |
| Nov | 3.67 | 3.73 | -0.06 |
| Dec | 4.80 | 4.83 | -0.03 |
51.79 | 52.24 | -0.45 |