| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.53 | 3.51 | 0.02 |
| Feb | 3.00 | 3.06 | -0.06 |
| Mar | 3.85 | 3.76 | 0.09 |
| Apr | 3.91 | 3.94 | -0.03 |
| May | 3.86 | 3.82 | 0.04 |
| Jun | 3.92 | 3.95 | -0.03 |
| Jul | 4.78 | 4.24 | 0.54 |
| Aug | 4.16 | 3.98 | 0.18 |
| Sep | 3.72 | 3.97 | -0.25 |
| Oct | 3.09 | 2.89 | 0.20 |
| Nov | 3.23 | 3.06 | 0.17 |
| Dec | 3.60 | 3.64 | -0.04 |
44.65 | 43.82 | 0.83 |