| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.21 | 4.22 | -0.01 |
| Feb | 3.86 | 3.93 | -0.07 |
| Mar | 4.54 | 4.62 | -0.08 |
| Apr | 3.92 | 4.03 | -0.11 |
| May | 4.00 | 3.88 | 0.12 |
| Jun | 4.31 | 4.03 | 0.28 |
| Jul | 4.15 | 4.34 | -0.19 |
| Aug | 4.58 | 4.80 | -0.22 |
| Sep | 3.86 | 3.80 | 0.06 |
| Oct | 3.37 | 3.59 | -0.22 |
| Nov | 3.70 | 3.93 | -0.23 |
| Dec | 4.45 | 4.89 | -0.44 |
48.95 | 50.06 | -1.11 |