| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.21 | 4.28 | -0.07 |
| Feb | 4.17 | 4.23 | -0.06 |
| Mar | 4.55 | 4.64 | -0.09 |
| Apr | 3.63 | 3.75 | -0.12 |
| May | 2.73 | 2.78 | -0.05 |
| Jun | 4.04 | 4.22 | -0.18 |
| Jul | 4.52 | 4.58 | -0.06 |
| Aug | 4.35 | 4.35 | 0.00 |
| Sep | 3.66 | 3.63 | 0.03 |
| Oct | 2.73 | 2.88 | -0.15 |
| Nov | 3.26 | 3.36 | -0.10 |
| Dec | 4.46 | 4.54 | -0.08 |
46.31 | 47.24 | -0.93 |