| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.64 | 3.73 | -0.09 |
| Feb | 3.15 | 3.24 | -0.09 |
| Mar | 3.91 | 4.13 | -0.22 |
| Apr | 3.60 | 3.64 | -0.04 |
| May | 3.52 | 3.47 | 0.05 |
| Jun | 4.12 | 4.16 | -0.04 |
| Jul | 3.73 | 3.74 | -0.01 |
| Aug | 4.07 | 4.07 | 0.00 |
| Sep | 3.66 | 3.75 | -0.09 |
| Oct | 3.12 | 3.18 | -0.06 |
| Nov | 3.26 | 3.30 | -0.04 |
| Dec | 3.63 | 3.78 | -0.15 |
43.41 | 44.19 | -0.78 |