| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.57 | 3.73 | -0.16 |
| Feb | 3.01 | 2.99 | 0.02 |
| Mar | 4.20 | 4.29 | -0.09 |
| Apr | 3.65 | 3.62 | 0.03 |
| May | 3.63 | 3.62 | 0.01 |
| Jun | 4.22 | 4.07 | 0.15 |
| Jul | 4.57 | 4.51 | 0.06 |
| Aug | 4.38 | 4.13 | 0.25 |
| Sep | 4.93 | 4.99 | -0.06 |
| Oct | 3.41 | 3.45 | -0.04 |
| Nov | 3.29 | 3.31 | -0.02 |
| Dec | 3.56 | 3.61 | -0.05 |
46.42 | 46.32 | 0.10 |