| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.93 | 4.14 | -0.21 |
| Feb | 3.53 | 3.63 | -0.10 |
| Mar | 4.89 | 5.03 | -0.14 |
| Apr | 4.16 | 4.30 | -0.14 |
| May | 3.41 | 3.40 | 0.01 |
| Jun | 3.43 | 3.23 | 0.20 |
| Jul | 2.66 | 2.67 | -0.01 |
| Aug | 3.38 | 3.54 | -0.16 |
| Sep | 4.04 | 3.73 | 0.31 |
| Oct | 4.63 | 4.64 | -0.01 |
| Nov | 4.19 | 4.16 | 0.03 |
| Dec | 4.82 | 5.00 | -0.18 |
47.07 | 47.47 | -0.40 |