| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.67 | 3.56 | 0.11 |
| Feb | 2.71 | 2.63 | 0.08 |
| Mar | 3.24 | 3.29 | -0.05 |
| Apr | 3.98 | 4.02 | -0.04 |
| May | 4.07 | 4.22 | -0.15 |
| Jun | 4.50 | 4.61 | -0.11 |
| Jul | 4.68 | 4.86 | -0.18 |
| Aug | 4.00 | 4.31 | -0.31 |
| Sep | 4.18 | 4.06 | 0.12 |
| Oct | 4.32 | 4.17 | 0.15 |
| Nov | 3.88 | 3.77 | 0.11 |
| Dec | 3.93 | 3.80 | 0.13 |
47.16 | 47.30 | -0.14 |