| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.46 | 3.52 | -0.06 |
| Feb | 2.99 | 3.00 | -0.01 |
| Mar | 4.04 | 4.14 | -0.10 |
| Apr | 3.41 | 3.48 | -0.07 |
| May | 3.64 | 3.67 | -0.03 |
| Jun | 3.94 | 4.10 | -0.16 |
| Jul | 4.39 | 4.36 | 0.03 |
| Aug | 4.89 | 5.11 | -0.22 |
| Sep | 4.14 | 4.37 | -0.23 |
| Oct | 3.86 | 4.06 | -0.20 |
| Nov | 3.19 | 3.24 | -0.05 |
| Dec | 3.63 | 3.82 | -0.19 |
45.58 | 46.87 | -1.29 |