| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.76 | 3.98 | -0.22 |
| Feb | 3.56 | 3.67 | -0.11 |
| Mar | 2.69 | 2.85 | -0.16 |
| Apr | 1.36 | 1.47 | -0.11 |
| May | 0.92 | 0.80 | 0.12 |
| Jun | 0.20 | 0.21 | -0.01 |
| Jul | 0.01 | 0.00 | 0.01 |
| Aug | 0.02 | 0.03 | -0.01 |
| Sep | 0.09 | 0.10 | -0.01 |
| Oct | 0.86 | 0.93 | -0.07 |
| Nov | 1.80 | 1.77 | 0.03 |
| Dec | 3.27 | 3.50 | -0.23 |
18.54 | 19.31 | -0.77 |