| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.64 | 3.59 | 0.05 |
| Feb | 3.02 | 2.94 | 0.08 |
| Mar | 4.05 | 3.96 | 0.09 |
| Apr | 3.58 | 3.59 | -0.01 |
| May | 3.76 | 3.61 | 0.15 |
| Jun | 4.60 | 4.64 | -0.04 |
| Jul | 4.97 | 4.92 | 0.05 |
| Aug | 4.81 | 4.73 | 0.08 |
| Sep | 5.09 | 5.25 | -0.16 |
| Oct | 3.56 | 3.62 | -0.06 |
| Nov | 3.46 | 3.37 | 0.09 |
| Dec | 3.52 | 3.46 | 0.06 |
48.06 | 47.68 | 0.38 |