| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.44 | 0.50 | -0.06 |
| Feb | 0.39 | 0.38 | 0.01 |
| Mar | 0.57 | 0.57 | 0.00 |
| Apr | 1.03 | 0.99 | 0.04 |
| May | 2.41 | 2.39 | 0.02 |
| Jun | 2.95 | 3.11 | -0.16 |
| Jul | 2.55 | 2.68 | -0.13 |
| Aug | 1.62 | 1.59 | 0.03 |
| Sep | 1.47 | 1.48 | -0.01 |
| Oct | 1.13 | 1.10 | 0.03 |
| Nov | 0.56 | 0.63 | -0.07 |
| Dec | 0.54 | 0.56 | -0.02 |
15.66 | 15.98 | -0.32 |