| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.03 | 3.05 | -0.02 |
| Feb | 2.42 | 2.54 | -0.12 |
| Mar | 3.56 | 3.49 | 0.07 |
| Apr | 3.65 | 3.50 | 0.15 |
| May | 4.41 | 4.41 | 0.00 |
| Jun | 4.30 | 4.24 | 0.06 |
| Jul | 4.26 | 4.00 | 0.26 |
| Aug | 3.76 | 3.80 | -0.04 |
| Sep | 4.19 | 3.94 | 0.25 |
| Oct | 2.89 | 2.52 | 0.37 |
| Nov | 3.00 | 2.84 | 0.16 |
| Dec | 3.34 | 3.14 | 0.20 |
42.81 | 41.47 | 1.34 |