| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.55 | 3.60 | -0.05 |
| Feb | 3.03 | 3.06 | -0.03 |
| Mar | 3.59 | 3.60 | -0.01 |
| Apr | 3.14 | 3.33 | -0.19 |
| May | 4.76 | 4.70 | 0.06 |
| Jun | 3.69 | 3.97 | -0.28 |
| Jul | 2.20 | 2.23 | -0.03 |
| Aug | 2.66 | 2.95 | -0.29 |
| Sep | 3.60 | 3.40 | 0.20 |
| Oct | 4.25 | 4.40 | -0.15 |
| Nov | 3.68 | 3.67 | 0.01 |
| Dec | 3.77 | 3.86 | -0.09 |
41.92 | 42.77 | -0.85 |