| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.75 | 3.76 | -0.01 |
| Feb | 3.33 | 3.35 | -0.02 |
| Mar | 4.45 | 4.42 | 0.03 |
| Apr | 4.36 | 4.25 | 0.11 |
| May | 3.63 | 3.46 | 0.17 |
| Jun | 4.31 | 4.29 | 0.02 |
| Jul | 3.67 | 3.73 | -0.06 |
| Aug | 4.03 | 3.96 | 0.07 |
| Sep | 3.93 | 3.81 | 0.12 |
| Oct | 4.98 | 4.83 | 0.15 |
| Nov | 3.91 | 3.79 | 0.12 |
| Dec | 4.56 | 4.76 | -0.20 |
48.91 | 48.41 | 0.50 |