| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.05 | 1.01 | 0.04 |
| Feb | 1.53 | 1.58 | -0.05 |
| Mar | 2.67 | 2.59 | 0.08 |
| Apr | 3.83 | 3.78 | 0.05 |
| May | 5.63 | 5.48 | 0.15 |
| Jun | 5.62 | 5.69 | -0.07 |
| Jul | 4.07 | 4.10 | -0.03 |
| Aug | 3.68 | 3.84 | -0.16 |
| Sep | 3.63 | 3.74 | -0.11 |
| Oct | 3.46 | 3.23 | 0.23 |
| Nov | 2.15 | 2.22 | -0.07 |
| Dec | 1.66 | 1.70 | -0.04 |
38.98 | 38.96 | 0.02 |