| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.63 | 3.45 | 0.18 |
| Feb | 3.32 | 3.22 | 0.10 |
| Mar | 4.07 | 3.92 | 0.15 |
| Apr | 3.89 | 3.87 | 0.02 |
| May | 4.09 | 3.93 | 0.16 |
| Jun | 4.48 | 4.29 | 0.19 |
| Jul | 4.77 | 4.99 | -0.22 |
| Aug | 3.96 | 4.05 | -0.09 |
| Sep | 3.32 | 3.39 | -0.07 |
| Oct | 2.79 | 2.66 | 0.13 |
| Nov | 3.00 | 3.14 | -0.14 |
| Dec | 3.90 | 4.12 | -0.22 |
45.22 | 45.03 | 0.19 |