| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.46 | 4.50 | -0.04 |
| Feb | 4.40 | 4.41 | -0.01 |
| Mar | 4.60 | 4.56 | 0.04 |
| Apr | 3.62 | 3.62 | 0.00 |
| May | 3.44 | 3.37 | 0.07 |
| Jun | 4.73 | 4.62 | 0.11 |
| Jul | 4.09 | 4.17 | -0.08 |
| Aug | 4.66 | 4.47 | 0.19 |
| Sep | 3.81 | 3.93 | -0.12 |
| Oct | 3.18 | 3.32 | -0.14 |
| Nov | 3.65 | 3.73 | -0.08 |
| Dec | 4.63 | 4.71 | -0.08 |
49.27 | 49.41 | -0.14 |