| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.46 | 3.64 | 0.82 |
| Feb | 2.73 | 2.46 | 0.27 |
| Mar | 3.45 | 2.97 | 0.48 |
| Apr | 2.44 | 2.22 | 0.22 |
| May | 2.46 | 2.26 | 0.20 |
| Jun | 2.39 | 2.16 | 0.23 |
| Jul | 0.90 | 0.87 | 0.03 |
| Aug | 0.81 | 0.80 | 0.01 |
| Sep | 1.29 | 1.10 | 0.19 |
| Oct | 2.92 | 2.58 | 0.34 |
| Nov | 4.22 | 3.59 | 0.63 |
| Dec | 4.54 | 3.96 | 0.58 |
32.61 | 28.61 | 4.00 |