| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.26 | 3.34 | -0.08 |
| Feb | 2.71 | 2.77 | -0.06 |
| Mar | 3.34 | 3.49 | -0.15 |
| Apr | 3.66 | 3.87 | -0.21 |
| May | 3.45 | 3.49 | -0.04 |
| Jun | 3.96 | 4.28 | -0.32 |
| Jul | 3.56 | 3.40 | 0.16 |
| Aug | 3.53 | 3.54 | -0.01 |
| Sep | 3.63 | 3.66 | -0.03 |
| Oct | 4.80 | 4.81 | -0.01 |
| Nov | 4.03 | 4.16 | -0.13 |
| Dec | 4.02 | 4.18 | -0.16 |
43.95 | 44.99 | -1.04 |