| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.39 | 0.38 | 0.01 |
| Feb | 0.44 | 0.43 | 0.01 |
| Mar | 0.83 | 0.84 | -0.01 |
| Apr | 1.79 | 1.76 | 0.03 |
| May | 2.56 | 2.61 | -0.05 |
| Jun | 2.61 | 2.66 | -0.05 |
| Jul | 3.01 | 2.99 | 0.02 |
| Aug | 2.67 | 2.67 | 0.00 |
| Sep | 1.18 | 1.21 | -0.03 |
| Oct | 1.14 | 1.20 | -0.06 |
| Nov | 0.53 | 0.50 | 0.03 |
| Dec | 0.42 | 0.43 | -0.01 |
17.57 | 17.68 | -0.11 |