| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.78 | 2.81 | -0.03 |
| Feb | 2.26 | 2.22 | 0.04 |
| Mar | 3.01 | 3.03 | -0.02 |
| Apr | 3.63 | 3.65 | -0.02 |
| May | 3.88 | 3.97 | -0.09 |
| Jun | 4.47 | 4.29 | 0.18 |
| Jul | 4.19 | 3.90 | 0.29 |
| Aug | 3.59 | 3.60 | -0.01 |
| Sep | 3.56 | 3.58 | -0.02 |
| Oct | 3.24 | 3.24 | 0.00 |
| Nov | 2.86 | 2.80 | 0.06 |
| Dec | 2.87 | 2.81 | 0.06 |
40.34 | 39.90 | 0.44 |