| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.53 | 3.63 | -0.10 |
| Feb | 2.89 | 2.92 | -0.03 |
| Mar | 4.21 | 4.14 | 0.07 |
| Apr | 3.72 | 3.68 | 0.04 |
| May | 3.70 | 3.68 | 0.02 |
| Jun | 4.41 | 4.24 | 0.17 |
| Jul | 4.75 | 4.75 | 0.00 |
| Aug | 4.67 | 4.53 | 0.14 |
| Sep | 4.86 | 5.28 | -0.42 |
| Oct | 3.55 | 3.53 | 0.02 |
| Nov | 3.38 | 3.36 | 0.02 |
| Dec | 3.59 | 3.58 | 0.01 |
47.26 | 47.32 | -0.06 |