| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.98 | 4.12 | -0.14 |
| Feb | 4.21 | 4.27 | -0.06 |
| Mar | 4.75 | 4.85 | -0.10 |
| Apr | 4.39 | 4.44 | -0.05 |
| May | 4.93 | 4.88 | 0.05 |
| Jun | 4.12 | 4.26 | -0.14 |
| Jul | 3.46 | 3.23 | 0.23 |
| Aug | 2.87 | 2.87 | 0.00 |
| Sep | 3.86 | 3.94 | -0.08 |
| Oct | 4.64 | 4.59 | 0.05 |
| Nov | 3.90 | 3.98 | -0.08 |
| Dec | 4.86 | 4.78 | 0.08 |
49.97 | 50.21 | -0.24 |