| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.70 | 3.71 | -0.01 |
| Feb | 3.41 | 3.50 | -0.09 |
| Mar | 3.76 | 3.96 | -0.20 |
| Apr | 2.96 | 3.08 | -0.12 |
| May | 3.26 | 3.32 | -0.06 |
| Jun | 4.38 | 4.34 | 0.04 |
| Jul | 4.46 | 4.50 | -0.04 |
| Aug | 4.62 | 4.64 | -0.02 |
| Sep | 4.04 | 4.07 | -0.03 |
| Oct | 3.29 | 3.47 | -0.18 |
| Nov | 2.98 | 3.06 | -0.08 |
| Dec | 3.81 | 3.93 | -0.12 |
44.67 | 45.58 | -0.91 |