| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.41 | 0.61 | -0.20 |
| Feb | 0.43 | 0.59 | -0.16 |
| Mar | 0.60 | 0.80 | -0.20 |
| Apr | 1.04 | 1.07 | -0.03 |
| May | 2.60 | 2.63 | -0.03 |
| Jun | 3.53 | 3.75 | -0.22 |
| Jul | 2.62 | 2.60 | 0.02 |
| Aug | 1.97 | 2.08 | -0.11 |
| Sep | 1.62 | 1.64 | -0.02 |
| Oct | 1.30 | 1.34 | -0.04 |
| Nov | 0.69 | 0.85 | -0.16 |
| Dec | 0.48 | 0.76 | -0.28 |
17.29 | 18.72 | -1.43 |