| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.55 | 4.51 | 0.04 |
| Feb | 4.46 | 4.48 | -0.02 |
| Mar | 4.62 | 4.63 | -0.01 |
| Apr | 3.66 | 3.67 | -0.01 |
| May | 3.56 | 3.45 | 0.11 |
| Jun | 4.70 | 4.88 | -0.18 |
| Jul | 4.05 | 4.31 | -0.26 |
| Aug | 4.81 | 4.58 | 0.23 |
| Sep | 3.92 | 3.94 | -0.02 |
| Oct | 3.29 | 3.35 | -0.06 |
| Nov | 3.76 | 3.81 | -0.05 |
| Dec | 4.59 | 4.73 | -0.14 |
49.97 | 50.34 | -0.37 |