| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.48 | 3.58 | -0.10 |
| Feb | 2.93 | 3.04 | -0.11 |
| Mar | 3.84 | 3.98 | -0.14 |
| Apr | 3.68 | 3.90 | -0.22 |
| May | 3.59 | 3.53 | 0.06 |
| Jun | 4.06 | 4.00 | 0.06 |
| Jul | 4.31 | 4.13 | 0.18 |
| Aug | 3.97 | 4.37 | -0.40 |
| Sep | 3.94 | 3.99 | -0.05 |
| Oct | 3.05 | 3.15 | -0.10 |
| Nov | 3.23 | 3.28 | -0.05 |
| Dec | 3.45 | 3.64 | -0.19 |
43.53 | 44.59 | -1.06 |