| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.70 | 3.80 | -0.10 |
| Feb | 3.19 | 3.24 | -0.05 |
| Mar | 3.98 | 4.09 | -0.11 |
| Apr | 3.80 | 4.06 | -0.26 |
| May | 3.81 | 3.80 | 0.01 |
| Jun | 4.32 | 4.46 | -0.14 |
| Jul | 4.32 | 4.31 | 0.01 |
| Aug | 4.41 | 4.56 | -0.15 |
| Sep | 3.97 | 4.14 | -0.17 |
| Oct | 3.27 | 3.22 | 0.05 |
| Nov | 3.30 | 3.40 | -0.10 |
| Dec | 3.86 | 3.98 | -0.12 |
45.93 | 47.06 | -1.13 |