| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 6.19 | 6.66 | -0.47 |
| Feb | 4.60 | 5.03 | -0.43 |
| Mar | 4.36 | 4.76 | -0.40 |
| Apr | 3.01 | 3.28 | -0.27 |
| May | 1.83 | 2.08 | -0.25 |
| Jun | 0.83 | 0.87 | -0.04 |
| Jul | 0.24 | 0.25 | -0.01 |
| Aug | 0.24 | 0.27 | -0.03 |
| Sep | 0.80 | 0.94 | -0.14 |
| Oct | 2.59 | 2.99 | -0.40 |
| Nov | 5.70 | 6.23 | -0.53 |
| Dec | 7.82 | 8.50 | -0.68 |
38.21 | 41.86 | -3.65 |