| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.29 | 3.20 | 0.09 |
| Feb | 2.39 | 2.33 | 0.06 |
| Mar | 3.01 | 2.86 | 0.15 |
| Apr | 3.60 | 3.63 | -0.03 |
| May | 3.55 | 3.42 | 0.13 |
| Jun | 3.98 | 3.68 | 0.30 |
| Jul | 3.81 | 3.53 | 0.28 |
| Aug | 3.63 | 3.29 | 0.34 |
| Sep | 4.06 | 4.26 | -0.20 |
| Oct | 4.32 | 4.24 | 0.08 |
| Nov | 3.71 | 3.61 | 0.10 |
| Dec | 3.66 | 3.46 | 0.20 |
43.01 | 41.51 | 1.50 |