| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.51 | 3.24 | 0.27 |
| Feb | 3.03 | 3.04 | -0.01 |
| Mar | 3.93 | 3.69 | 0.24 |
| Apr | 3.84 | 3.53 | 0.31 |
| May | 3.83 | 3.62 | 0.21 |
| Jun | 4.14 | 3.78 | 0.36 |
| Jul | 4.63 | 3.89 | 0.74 |
| Aug | 3.99 | 3.59 | 0.40 |
| Sep | 3.61 | 3.10 | 0.51 |
| Oct | 2.90 | 2.32 | 0.58 |
| Nov | 3.22 | 2.73 | 0.49 |
| Dec | 3.78 | 3.38 | 0.40 |
44.41 | 39.91 | 4.50 |