| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.83 | 2.86 | -0.03 |
| Feb | 2.29 | 2.30 | -0.01 |
| Mar | 3.45 | 3.52 | -0.07 |
| Apr | 3.34 | 3.58 | -0.24 |
| May | 4.21 | 4.46 | -0.25 |
| Jun | 4.29 | 4.22 | 0.07 |
| Jul | 4.02 | 3.93 | 0.09 |
| Aug | 3.28 | 3.24 | 0.04 |
| Sep | 4.23 | 4.57 | -0.34 |
| Oct | 3.29 | 3.43 | -0.14 |
| Nov | 2.96 | 3.00 | -0.04 |
| Dec | 3.18 | 3.34 | -0.16 |
41.37 | 42.45 | -1.08 |