| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.32 | 4.32 | 0.00 |
| Feb | 4.22 | 4.16 | 0.06 |
| Mar | 4.63 | 4.62 | 0.01 |
| Apr | 3.40 | 3.46 | -0.06 |
| May | 3.43 | 3.40 | 0.03 |
| Jun | 4.32 | 4.44 | -0.12 |
| Jul | 4.06 | 3.92 | 0.14 |
| Aug | 4.34 | 4.36 | -0.02 |
| Sep | 3.80 | 3.67 | 0.13 |
| Oct | 3.30 | 3.37 | -0.07 |
| Nov | 3.70 | 3.75 | -0.05 |
| Dec | 4.55 | 4.67 | -0.12 |
48.07 | 48.14 | -0.07 |