| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.54 | 3.43 | 0.11 |
| Feb | 2.87 | 2.83 | 0.04 |
| Mar | 3.86 | 3.57 | 0.29 |
| Apr | 3.77 | 3.75 | 0.02 |
| May | 4.32 | 4.15 | 0.17 |
| Jun | 4.17 | 4.11 | 0.06 |
| Jul | 4.07 | 3.83 | 0.24 |
| Aug | 3.62 | 3.48 | 0.14 |
| Sep | 4.46 | 4.13 | 0.33 |
| Oct | 3.54 | 3.27 | 0.27 |
| Nov | 3.50 | 3.29 | 0.21 |
| Dec | 3.76 | 3.72 | 0.04 |
45.48 | 43.56 | 1.92 |