| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.60 | 4.59 | 0.01 |
| Feb | 4.55 | 4.58 | -0.03 |
| Mar | 4.80 | 4.76 | 0.04 |
| Apr | 3.81 | 4.04 | -0.23 |
| May | 3.71 | 3.65 | 0.06 |
| Jun | 4.55 | 4.66 | -0.11 |
| Jul | 3.90 | 3.98 | -0.08 |
| Aug | 4.54 | 4.71 | -0.17 |
| Sep | 3.81 | 3.85 | -0.04 |
| Oct | 3.52 | 3.66 | -0.14 |
| Nov | 3.81 | 3.92 | -0.11 |
| Dec | 4.70 | 4.80 | -0.10 |
50.30 | 51.20 | -0.90 |