| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.50 | 2.73 | -0.23 |
| Feb | 1.98 | 2.17 | -0.19 |
| Mar | 2.27 | 2.22 | 0.05 |
| Apr | 3.54 | 3.73 | -0.19 |
| May | 3.86 | 4.02 | -0.16 |
| Jun | 3.59 | 3.71 | -0.12 |
| Jul | 3.32 | 3.39 | -0.07 |
| Aug | 3.53 | 3.64 | -0.11 |
| Sep | 3.18 | 3.24 | -0.06 |
| Oct | 3.76 | 3.65 | 0.11 |
| Nov | 2.90 | 3.01 | -0.11 |
| Dec | 2.31 | 2.63 | -0.32 |
36.74 | 38.14 | -1.40 |