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> Usa > Williston, North Dakota > Precipitation
Rainfall/ Precipitation in Williston, North Dakota, Usa
- Williston, North Dakota receives 347.2 mm (13.7 in) of rainfall per year, or 28.9 mm (1.1 in) per month.
- On average there are 89 days per year with more than 0.1 mm (0.004 in) of rainfall (precipitation) or 7.4 days with a quantity of rain, sleet, snow etc. per month.
- The driest weather is in February when an average of 10.7 mm (0.4 in) of rainfall (precipitation) occurs.
- The wettest weather is in June when an average of 57.9 mm (2.3 in) of rainfall (precipitation) occurs.
Precipitation Table
| Climate Variable | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Average Precipitation mm (in) | 13.5 (0.53) | 10.7 (0.4) | 17.5 (0.7) | 32.5 (1.3) | 50.5 (2) | 57.9 (2.3) | 53.3 (2.1) | 31.8 (1.3) | 33.8 (1.3) | 19.6 (0.8) | 11.4 (0.4) | 14.7 (0.6) | 347.2 (13.7) | |
 | Precipitation Litres/m² (Gallons/ft²) | 13.5 (0.33) | 10.7 (0.26) | 17.5 (0.43) | 32.5 (0.8) | 50.5 (1.24) | 57.9 (1.42) | 53.3 (1.31) | 31.8 (0.78) | 33.8 (0.83) | 19.6 (0.48) | 11.4 (0.28) | 14.7 (0.36) | 347.2 (8.52) | |
 | Number of Wet Days (probability of rain on a day) | 8 (26%) | 6 (21%) | 7 (23%) | 6 (20%) | 9 (29%) | 12 (40%) | 9 (29%) | 8 (26%) | 6 (20%) | 5 (16%) | 6 (20%) | 7 (23%) | 89 (24%) | |
 | Percentage of Sunny (Cloudy) Daylight Hours | 49 (51) | 53 (47) | 59 (41) | 61 (39) | 65 (35) | 65 (35) | 77 (23) | 74 (26) | 64 (36) | 65 (35) | 47 (53) | 51 (49) | 64 (36) |