| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 8.10 | 7.44 | 0.66 |
| Feb | 6.96 | 6.28 | 0.68 |
| Mar | 7.05 | 6.58 | 0.47 |
| Apr | 4.42 | 4.31 | 0.11 |
| May | 2.25 | 2.06 | 0.19 |
| Jun | 0.89 | 0.97 | -0.08 |
| Jul | 0.16 | 0.20 | -0.04 |
| Aug | 0.18 | 0.19 | -0.01 |
| Sep | 0.76 | 0.80 | -0.04 |
| Oct | 2.88 | 2.70 | 0.18 |
| Nov | 5.92 | 5.42 | 0.50 |
| Dec | 9.85 | 9.29 | 0.56 |
49.42 | 46.24 | 3.18 |