| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.21 | 3.19 | 0.02 |
| Feb | 3.19 | 3.17 | 0.02 |
| Mar | 4.09 | 4.00 | 0.09 |
| Apr | 3.69 | 3.74 | -0.05 |
| May | 4.80 | 4.96 | -0.16 |
| Jun | 4.43 | 4.46 | -0.03 |
| Jul | 5.13 | 5.56 | -0.43 |
| Aug | 3.78 | 3.52 | 0.26 |
| Sep | 3.42 | 3.41 | 0.01 |
| Oct | 3.00 | 3.02 | -0.02 |
| Nov | 3.02 | 2.94 | 0.08 |
| Dec | 3.65 | 3.76 | -0.11 |
45.41 | 45.73 | -0.32 |