| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 6.51 | 6.31 | 0.20 |
| Feb | 5.01 | 4.63 | 0.38 |
| Mar | 5.26 | 5.07 | 0.19 |
| Apr | 4.41 | 4.34 | 0.07 |
| May | 3.02 | 2.99 | 0.03 |
| Jun | 1.74 | 1.71 | 0.03 |
| Jul | 0.36 | 0.40 | -0.04 |
| Aug | 0.48 | 0.46 | 0.02 |
| Sep | 1.54 | 1.70 | -0.16 |
| Oct | 3.84 | 3.67 | 0.17 |
| Nov | 6.69 | 6.28 | 0.41 |
| Dec | 7.72 | 7.64 | 0.08 |
46.58 | 45.20 | 1.38 |