| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.20 | 3.26 | -0.06 |
| Feb | 2.51 | 2.77 | -0.26 |
| Mar | 3.58 | 3.85 | -0.27 |
| Apr | 3.57 | 3.95 | -0.38 |
| May | 3.66 | 3.57 | 0.09 |
| Jun | 4.63 | 4.60 | 0.03 |
| Jul | 4.29 | 4.23 | 0.06 |
| Aug | 4.54 | 4.41 | 0.13 |
| Sep | 4.37 | 4.19 | 0.18 |
| Oct | 4.44 | 4.50 | -0.06 |
| Nov | 3.21 | 3.28 | -0.07 |
| Dec | 3.79 | 4.01 | -0.22 |
45.79 | 46.62 | -0.83 |