| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.91 | 1.76 | 0.15 |
| Feb | 1.66 | 1.33 | 0.33 |
| Mar | 1.54 | 1.53 | 0.01 |
| Apr | 1.56 | 1.49 | 0.07 |
| May | 1.98 | 1.89 | 0.09 |
| Jun | 2.57 | 2.60 | -0.03 |
| Jul | 1.03 | 1.09 | -0.06 |
| Aug | 0.92 | 0.85 | 0.07 |
| Sep | 1.30 | 1.34 | -0.04 |
| Oct | 1.92 | 1.47 | 0.45 |
| Nov | 2.15 | 1.87 | 0.28 |
| Dec | 2.13 | 1.90 | 0.23 |
20.67 | 19.12 | 1.55 |