| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.45 | 0.51 | -0.06 |
| Feb | 0.65 | 0.62 | 0.03 |
| Mar | 0.97 | 0.99 | -0.02 |
| Apr | 2.46 | 2.64 | -0.18 |
| May | 3.41 | 3.41 | 0.00 |
| Jun | 3.75 | 4.09 | -0.34 |
| Jul | 2.73 | 2.56 | 0.17 |
| Aug | 2.62 | 2.67 | -0.05 |
| Sep | 2.13 | 2.22 | -0.09 |
| Oct | 1.74 | 1.83 | -0.09 |
| Nov | 0.69 | 0.74 | -0.05 |
| Dec | 0.50 | 0.56 | -0.06 |
22.10 | 22.84 | -0.74 |