| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.01 | 1.88 | 0.13 |
| Feb | 1.56 | 1.45 | 0.11 |
| Mar | 1.78 | 1.62 | 0.16 |
| Apr | 2.97 | 2.98 | -0.01 |
| May | 2.96 | 3.16 | -0.20 |
| Jun | 2.77 | 2.76 | 0.01 |
| Jul | 3.31 | 3.07 | 0.24 |
| Aug | 3.37 | 3.27 | 0.10 |
| Sep | 2.95 | 2.97 | -0.02 |
| Oct | 3.09 | 3.23 | -0.14 |
| Nov | 2.18 | 2.37 | -0.19 |
| Dec | 2.02 | 1.99 | 0.03 |
30.97 | 30.75 | 0.22 |