| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.60 | 3.78 | -0.18 |
| Feb | 3.06 | 3.19 | -0.13 |
| Mar | 3.75 | 4.01 | -0.26 |
| Apr | 3.44 | 3.58 | -0.14 |
| May | 3.59 | 3.45 | 0.14 |
| Jun | 4.03 | 4.14 | -0.11 |
| Jul | 3.71 | 3.93 | -0.22 |
| Aug | 4.08 | 4.22 | -0.14 |
| Sep | 3.60 | 3.89 | -0.29 |
| Oct | 3.09 | 3.21 | -0.12 |
| Nov | 3.15 | 3.31 | -0.16 |
| Dec | 3.49 | 3.78 | -0.29 |
42.59 | 44.49 | -1.90 |