| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.70 | 3.74 | -0.04 |
| Feb | 3.23 | 3.19 | 0.04 |
| Mar | 4.08 | 4.10 | -0.02 |
| Apr | 3.74 | 3.57 | 0.17 |
| May | 3.51 | 3.40 | 0.11 |
| Jun | 4.09 | 3.90 | 0.19 |
| Jul | 3.62 | 3.61 | 0.01 |
| Aug | 4.16 | 4.03 | 0.13 |
| Sep | 3.60 | 3.55 | 0.05 |
| Oct | 3.13 | 3.14 | -0.01 |
| Nov | 3.40 | 3.35 | 0.05 |
| Dec | 3.78 | 3.86 | -0.08 |
44.04 | 43.44 | 0.60 |