| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.20 | 4.19 | 0.01 |
| Feb | 3.81 | 3.83 | -0.02 |
| Mar | 4.49 | 4.59 | -0.10 |
| Apr | 3.96 | 4.02 | -0.06 |
| May | 3.88 | 3.92 | -0.04 |
| Jun | 4.29 | 4.04 | 0.25 |
| Jul | 4.06 | 4.30 | -0.24 |
| Aug | 4.47 | 4.77 | -0.30 |
| Sep | 3.86 | 3.77 | 0.09 |
| Oct | 3.39 | 3.60 | -0.21 |
| Nov | 3.67 | 3.90 | -0.23 |
| Dec | 4.42 | 4.83 | -0.41 |
48.50 | 49.76 | -1.26 |