| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.79 | 4.76 | 0.03 |
| Feb | 5.04 | 4.90 | 0.14 |
| Mar | 5.00 | 4.99 | 0.01 |
| Apr | 4.81 | 4.97 | -0.16 |
| May | 3.83 | 4.09 | -0.26 |
| Jun | 4.28 | 4.57 | -0.29 |
| Jul | 4.48 | 4.99 | -0.51 |
| Aug | 3.53 | 3.46 | 0.07 |
| Sep | 3.81 | 3.80 | 0.01 |
| Oct | 3.47 | 2.88 | 0.59 |
| Nov | 4.18 | 3.79 | 0.39 |
| Dec | 5.64 | 5.27 | 0.37 |
52.86 | 52.47 | 0.39 |