| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.55 | 3.58 | -0.03 |
| Feb | 2.90 | 2.88 | 0.02 |
| Mar | 4.05 | 3.97 | 0.08 |
| Apr | 3.63 | 3.75 | -0.12 |
| May | 3.76 | 3.98 | -0.22 |
| Jun | 4.52 | 4.25 | 0.27 |
| Jul | 5.38 | 5.45 | -0.07 |
| Aug | 5.08 | 5.37 | -0.29 |
| Sep | 5.13 | 5.04 | 0.09 |
| Oct | 3.87 | 4.25 | -0.38 |
| Nov | 3.09 | 3.03 | 0.06 |
| Dec | 3.60 | 3.59 | 0.01 |
48.56 | 49.14 | -0.58 |