| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.98 | 4.27 | -0.29 |
| Feb | 3.70 | 3.83 | -0.13 |
| Mar | 4.97 | 5.14 | -0.17 |
| Apr | 4.38 | 4.60 | -0.22 |
| May | 3.59 | 3.66 | -0.07 |
| Jun | 4.07 | 3.88 | 0.19 |
| Jul | 3.46 | 3.49 | -0.03 |
| Aug | 3.54 | 3.58 | -0.04 |
| Sep | 3.85 | 3.70 | 0.15 |
| Oct | 4.80 | 5.15 | -0.35 |
| Nov | 4.15 | 4.38 | -0.23 |
| Dec | 4.92 | 5.01 | -0.09 |
49.41 | 50.69 | -1.28 |