| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.07 | 2.12 | -0.05 |
| Feb | 1.81 | 1.87 | -0.06 |
| Mar | 2.57 | 2.56 | 0.01 |
| Apr | 3.77 | 3.68 | 0.09 |
| May | 4.54 | 4.56 | -0.02 |
| Jun | 4.06 | 4.03 | 0.03 |
| Jul | 4.06 | 3.80 | 0.26 |
| Aug | 3.60 | 3.50 | 0.10 |
| Sep | 3.20 | 3.29 | -0.09 |
| Oct | 3.19 | 3.14 | 0.05 |
| Nov | 2.70 | 2.67 | 0.03 |
| Dec | 2.15 | 2.12 | 0.03 |
37.72 | 37.34 | 0.38 |