| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.51 | 4.85 | -0.34 |
| Feb | 4.10 | 4.34 | -0.24 |
| Mar | 4.53 | 4.76 | -0.23 |
| Apr | 3.90 | 4.14 | -0.24 |
| May | 3.77 | 3.87 | -0.10 |
| Jun | 4.18 | 4.09 | 0.09 |
| Jul | 4.05 | 4.13 | -0.08 |
| Aug | 4.64 | 5.22 | -0.58 |
| Sep | 3.80 | 3.90 | -0.10 |
| Oct | 3.45 | 3.74 | -0.29 |
| Nov | 3.71 | 3.92 | -0.21 |
| Dec | 4.68 | 5.06 | -0.38 |
49.32 | 52.02 | -2.70 |