| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.63 | 3.54 | 0.09 |
| Feb | 3.03 | 2.92 | 0.11 |
| Mar | 3.99 | 3.92 | 0.07 |
| Apr | 3.54 | 3.56 | -0.02 |
| May | 3.72 | 3.58 | 0.14 |
| Jun | 4.63 | 4.60 | 0.03 |
| Jul | 4.99 | 4.96 | 0.03 |
| Aug | 4.86 | 4.81 | 0.05 |
| Sep | 5.06 | 5.22 | -0.16 |
| Oct | 3.52 | 3.59 | -0.07 |
| Nov | 3.44 | 3.36 | 0.08 |
| Dec | 3.50 | 3.47 | 0.03 |
47.91 | 47.53 | 0.38 |