| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.40 | 5.16 | -0.76 |
| Feb | 4.24 | 4.45 | -0.21 |
| Mar | 4.93 | 4.77 | 0.16 |
| Apr | 4.81 | 5.38 | -0.57 |
| May | 3.72 | 3.70 | 0.02 |
| Jun | 5.78 | 5.93 | -0.15 |
| Jul | 7.18 | 7.21 | -0.03 |
| Aug | 6.53 | 6.93 | -0.40 |
| Sep | 6.70 | 7.04 | -0.34 |
| Oct | 4.20 | 4.31 | -0.11 |
| Nov | 3.93 | 4.08 | -0.15 |
| Dec | 4.80 | 4.92 | -0.12 |
61.22 | 63.88 | -2.66 |