| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.52 | 3.99 | -0.47 |
| Feb | 3.12 | 3.51 | -0.39 |
| Mar | 4.54 | 5.07 | -0.53 |
| Apr | 4.14 | 4.51 | -0.37 |
| May | 3.49 | 3.29 | 0.20 |
| Jun | 3.58 | 3.61 | -0.03 |
| Jul | 3.00 | 2.98 | 0.02 |
| Aug | 3.58 | 3.62 | -0.04 |
| Sep | 3.89 | 3.60 | 0.29 |
| Oct | 4.36 | 4.62 | -0.26 |
| Nov | 3.70 | 4.05 | -0.35 |
| Dec | 4.39 | 4.89 | -0.50 |
45.31 | 47.74 | -2.43 |