| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.01 | 2.21 | -0.20 |
| Feb | 1.80 | 1.99 | -0.19 |
| Mar | 2.34 | 2.36 | -0.02 |
| Apr | 3.81 | 3.90 | -0.09 |
| May | 4.48 | 4.59 | -0.11 |
| Jun | 4.28 | 4.37 | -0.09 |
| Jul | 3.69 | 3.89 | -0.20 |
| Aug | 4.13 | 4.04 | 0.09 |
| Sep | 3.27 | 3.24 | 0.03 |
| Oct | 3.54 | 3.44 | 0.10 |
| Nov | 2.55 | 2.61 | -0.06 |
| Dec | 2.11 | 2.29 | -0.18 |
38.01 | 38.93 | -0.92 |