| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.26 | 3.20 | 0.06 |
| Feb | 3.09 | 2.82 | 0.27 |
| Mar | 4.15 | 4.14 | 0.01 |
| Apr | 3.36 | 3.36 | 0.00 |
| May | 3.42 | 3.61 | -0.19 |
| Jun | 3.55 | 3.50 | 0.05 |
| Jul | 4.18 | 4.03 | 0.15 |
| Aug | 4.57 | 4.21 | 0.36 |
| Sep | 4.02 | 3.60 | 0.42 |
| Oct | 4.12 | 4.24 | -0.12 |
| Nov | 3.34 | 3.23 | 0.11 |
| Dec | 4.09 | 4.04 | 0.05 |
45.15 | 43.98 | 1.17 |