| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.46 | 0.44 | 0.02 |
| Feb | 0.62 | 0.61 | 0.01 |
| Mar | 0.99 | 1.04 | -0.05 |
| Apr | 2.19 | 2.35 | -0.16 |
| May | 3.24 | 3.48 | -0.24 |
| Jun | 3.40 | 3.65 | -0.25 |
| Jul | 2.71 | 2.56 | 0.15 |
| Aug | 2.28 | 2.29 | -0.01 |
| Sep | 1.65 | 1.75 | -0.10 |
| Oct | 1.66 | 1.63 | 0.03 |
| Nov | 0.62 | 0.68 | -0.06 |
| Dec | 0.47 | 0.50 | -0.03 |
20.29 | 20.98 | -0.69 |