| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.00 | 4.12 | -0.12 |
| Feb | 3.55 | 3.57 | -0.02 |
| Mar | 4.80 | 4.95 | -0.15 |
| Apr | 4.40 | 4.67 | -0.27 |
| May | 3.48 | 3.46 | 0.02 |
| Jun | 4.03 | 4.16 | -0.13 |
| Jul | 3.41 | 3.38 | 0.03 |
| Aug | 3.80 | 3.81 | -0.01 |
| Sep | 4.07 | 4.08 | -0.01 |
| Oct | 4.73 | 4.76 | -0.03 |
| Nov | 4.18 | 4.21 | -0.03 |
| Dec | 4.80 | 4.97 | -0.17 |
49.25 | 50.14 | -0.89 |