| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.83 | 1.88 | -0.05 |
| Feb | 1.72 | 1.83 | -0.11 |
| Mar | 2.23 | 2.27 | -0.04 |
| Apr | 3.80 | 3.80 | 0.00 |
| May | 4.17 | 4.29 | -0.12 |
| Jun | 4.46 | 4.53 | -0.07 |
| Jul | 3.54 | 3.69 | -0.15 |
| Aug | 3.68 | 3.64 | 0.04 |
| Sep | 3.50 | 3.47 | 0.03 |
| Oct | 3.14 | 3.11 | 0.03 |
| Nov | 2.42 | 2.36 | 0.06 |
| Dec | 1.97 | 2.09 | -0.12 |
36.46 | 36.96 | -0.50 |