| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.77 | 0.76 | 0.01 |
| Feb | 0.83 | 0.78 | 0.05 |
| Mar | 1.77 | 1.64 | 0.13 |
| Apr | 3.21 | 3.04 | 0.17 |
| May | 4.49 | 4.24 | 0.25 |
| Jun | 4.90 | 4.93 | -0.03 |
| Jul | 3.81 | 3.86 | -0.05 |
| Aug | 4.03 | 3.80 | 0.23 |
| Sep | 3.24 | 3.20 | 0.04 |
| Oct | 2.50 | 2.38 | 0.12 |
| Nov | 1.54 | 1.33 | 0.21 |
| Dec | 0.90 | 0.99 | -0.09 |
31.99 | 30.95 | 1.04 |