| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.79 | 3.98 | -0.19 |
| Feb | 3.29 | 3.32 | -0.03 |
| Mar | 4.04 | 4.10 | -0.06 |
| Apr | 3.50 | 3.69 | -0.19 |
| May | 3.36 | 3.34 | 0.02 |
| Jun | 4.01 | 4.18 | -0.17 |
| Jul | 3.67 | 3.95 | -0.28 |
| Aug | 4.04 | 4.19 | -0.15 |
| Sep | 3.63 | 3.79 | -0.16 |
| Oct | 3.07 | 2.97 | 0.10 |
| Nov | 3.23 | 3.33 | -0.10 |
| Dec | 3.89 | 3.95 | -0.06 |
43.52 | 44.79 | -1.27 |