| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.02 | 3.00 | 0.02 |
| Feb | 2.94 | 2.99 | -0.05 |
| Mar | 3.76 | 3.90 | -0.14 |
| Apr | 3.49 | 3.67 | -0.18 |
| May | 4.51 | 4.44 | 0.07 |
| Jun | 3.84 | 3.83 | 0.01 |
| Jul | 1.93 | 2.00 | -0.07 |
| Aug | 2.49 | 2.51 | -0.02 |
| Sep | 3.19 | 3.09 | 0.10 |
| Oct | 4.40 | 4.36 | 0.04 |
| Nov | 3.09 | 3.04 | 0.05 |
| Dec | 3.48 | 3.60 | -0.12 |
40.14 | 40.43 | -0.29 |