| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.61 | 1.72 | -0.11 |
| Feb | 1.58 | 1.67 | -0.09 |
| Mar | 1.72 | 1.76 | -0.04 |
| Apr | 1.96 | 1.92 | 0.04 |
| May | 1.78 | 1.76 | 0.02 |
| Jun | 1.01 | 0.98 | 0.03 |
| Jul | 1.62 | 1.50 | 0.12 |
| Aug | 1.65 | 1.50 | 0.15 |
| Sep | 1.90 | 1.86 | 0.04 |
| Oct | 1.83 | 1.72 | 0.11 |
| Nov | 1.59 | 1.57 | 0.02 |
| Dec | 1.49 | 1.64 | -0.15 |
19.74 | 19.60 | 0.14 |