| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.30 | 4.31 | -0.01 |
| Feb | 3.97 | 3.93 | 0.04 |
| Mar | 4.50 | 4.62 | -0.12 |
| Apr | 4.04 | 4.21 | -0.17 |
| May | 4.00 | 4.03 | -0.03 |
| Jun | 4.23 | 4.21 | 0.02 |
| Jul | 4.44 | 4.73 | -0.29 |
| Aug | 4.75 | 4.93 | -0.18 |
| Sep | 4.06 | 3.98 | 0.08 |
| Oct | 3.60 | 3.74 | -0.14 |
| Nov | 3.91 | 4.05 | -0.14 |
| Dec | 4.65 | 4.84 | -0.19 |
50.45 | 51.58 | -1.13 |