| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.50 | 3.56 | -0.06 |
| Feb | 2.77 | 2.86 | -0.09 |
| Mar | 3.81 | 3.89 | -0.08 |
| Apr | 3.66 | 3.73 | -0.07 |
| May | 4.32 | 4.24 | 0.08 |
| Jun | 4.31 | 4.26 | 0.05 |
| Jul | 3.80 | 3.91 | -0.11 |
| Aug | 3.54 | 3.53 | 0.01 |
| Sep | 4.44 | 4.47 | -0.03 |
| Oct | 3.42 | 3.45 | -0.03 |
| Nov | 3.29 | 3.35 | -0.06 |
| Dec | 3.57 | 3.65 | -0.08 |
44.43 | 44.90 | -0.47 |