| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.98 | 4.14 | -0.16 |
| Feb | 3.49 | 3.59 | -0.10 |
| Mar | 4.81 | 5.02 | -0.21 |
| Apr | 4.37 | 4.67 | -0.30 |
| May | 3.43 | 3.47 | -0.04 |
| Jun | 4.03 | 4.13 | -0.10 |
| Jul | 3.23 | 3.36 | -0.13 |
| Aug | 3.76 | 3.78 | -0.02 |
| Sep | 4.00 | 4.06 | -0.06 |
| Oct | 4.60 | 4.75 | -0.15 |
| Nov | 4.19 | 4.23 | -0.04 |
| Dec | 4.76 | 4.98 | -0.22 |
48.65 | 50.18 | -1.53 |