| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.70 | 3.85 | -0.15 |
| Feb | 3.27 | 3.46 | -0.19 |
| Mar | 4.26 | 4.37 | -0.11 |
| Apr | 4.18 | 4.39 | -0.21 |
| May | 3.71 | 3.65 | 0.06 |
| Jun | 4.41 | 4.18 | 0.23 |
| Jul | 4.08 | 4.14 | -0.06 |
| Aug | 4.48 | 4.44 | 0.04 |
| Sep | 4.27 | 4.25 | 0.02 |
| Oct | 4.93 | 4.90 | 0.03 |
| Nov | 3.86 | 3.80 | 0.06 |
| Dec | 4.52 | 4.76 | -0.24 |
49.67 | 50.19 | -0.52 |