| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.41 | 3.64 | -0.23 |
| Feb | 2.96 | 3.12 | -0.16 |
| Mar | 3.76 | 4.02 | -0.26 |
| Apr | 3.78 | 3.96 | -0.18 |
| May | 3.69 | 3.55 | 0.14 |
| Jun | 4.00 | 4.08 | -0.08 |
| Jul | 4.32 | 4.19 | 0.13 |
| Aug | 4.11 | 4.34 | -0.23 |
| Sep | 4.01 | 4.10 | -0.09 |
| Oct | 3.15 | 3.20 | -0.05 |
| Nov | 3.19 | 3.31 | -0.12 |
| Dec | 3.40 | 3.70 | -0.30 |
43.78 | 45.21 | -1.43 |