| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.50 | 0.51 | -0.01 |
| Feb | 0.66 | 0.67 | -0.01 |
| Mar | 0.99 | 0.97 | 0.02 |
| Apr | 2.20 | 2.34 | -0.14 |
| May | 3.29 | 3.37 | -0.08 |
| Jun | 3.78 | 3.72 | 0.06 |
| Jul | 3.23 | 3.23 | 0.00 |
| Aug | 2.44 | 2.61 | -0.17 |
| Sep | 2.18 | 2.20 | -0.02 |
| Oct | 1.99 | 1.96 | 0.03 |
| Nov | 0.64 | 0.68 | -0.04 |
| Dec | 0.61 | 0.63 | -0.02 |
22.51 | 22.89 | -0.38 |