| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.71 | 2.21 | -0.50 |
| Feb | 1.46 | 1.76 | -0.30 |
| Mar | 1.39 | 1.64 | -0.25 |
| Apr | 1.61 | 1.76 | -0.15 |
| May | 2.00 | 2.01 | -0.01 |
| Jun | 2.37 | 2.67 | -0.30 |
| Jul | 0.89 | 1.01 | -0.12 |
| Aug | 0.95 | 0.98 | -0.03 |
| Sep | 1.23 | 1.38 | -0.15 |
| Oct | 1.74 | 1.90 | -0.16 |
| Nov | 1.65 | 2.17 | -0.52 |
| Dec | 1.76 | 2.13 | -0.37 |
18.76 | 21.62 | -2.86 |