| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.98 | 4.23 | -0.25 |
| Feb | 3.70 | 3.79 | -0.09 |
| Mar | 4.97 | 5.10 | -0.13 |
| Apr | 4.38 | 4.57 | -0.19 |
| May | 3.59 | 3.66 | -0.07 |
| Jun | 4.07 | 3.91 | 0.16 |
| Jul | 3.46 | 3.50 | -0.04 |
| Aug | 3.54 | 3.58 | -0.04 |
| Sep | 3.85 | 3.71 | 0.14 |
| Oct | 4.80 | 5.11 | -0.31 |
| Nov | 4.15 | 4.34 | -0.19 |
| Dec | 4.92 | 4.99 | -0.07 |
49.41 | 50.49 | -1.08 |