| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.66 | 3.73 | -0.07 |
| Feb | 3.14 | 3.18 | -0.04 |
| Mar | 3.91 | 3.99 | -0.08 |
| Apr | 3.54 | 3.60 | -0.06 |
| May | 3.50 | 3.47 | 0.03 |
| Jun | 3.98 | 4.15 | -0.17 |
| Jul | 3.66 | 3.84 | -0.18 |
| Aug | 4.10 | 4.03 | 0.07 |
| Sep | 3.61 | 3.75 | -0.14 |
| Oct | 3.09 | 3.09 | 0.00 |
| Nov | 3.19 | 3.30 | -0.11 |
| Dec | 3.64 | 3.73 | -0.09 |
43.02 | 43.86 | -0.84 |