| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.10 | 2.33 | -0.23 |
| Feb | 1.50 | 1.59 | -0.09 |
| Mar | 1.85 | 2.06 | -0.21 |
| Apr | 1.41 | 1.42 | -0.01 |
| May | 1.69 | 1.60 | 0.09 |
| Jun | 1.36 | 1.45 | -0.09 |
| Jul | 0.51 | 0.48 | 0.03 |
| Aug | 0.47 | 0.45 | 0.02 |
| Sep | 0.61 | 0.67 | -0.06 |
| Oct | 1.42 | 1.62 | -0.20 |
| Nov | 2.04 | 2.31 | -0.27 |
| Dec | 2.58 | 2.73 | -0.15 |
17.54 | 18.71 | -1.17 |