Warm
Average highs sit around 29°C, giving warm days by monthly-average standards.
Weather Guide
Williston, North Dakota, United States Average Monthly Weather
Weather score51Mixed annual avg
Best months: July, August, June
Across the year, average daytime temperatures are around 12°C, sunshine averages 7.4h per day, and rainfall totals about 357mm.
Annual weather
Annual averages
Temp
12°C
Rain
357mm
Annual total
Sun
7.4h
Weather score
51
Mixed avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 52mm, which is relatively low for holiday planning.
Bright
Sunshine averages 12h per day, so bright days are a strong part of the month.
Map
Weather map
Compare Williston, North Dakota, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
July29°C average high
July is one of Williston's warmest months, with daytime heat above the yearly average.
Warmest monthsMay to September
This stretch sets the upper range for average daytime heat.
Rain
July52mm average rain
July is wetter than Williston's yearly average, so flexible plans matter more.
Driest monthsJanuary to April and August to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
July12 hours average sun
July is one of Williston's sunniest months, with some of the strongest bright-day conditions in the yearly averages.
Brightest monthsJune to August
This stretch has the strongest sunshine in the monthly averages.
Weather score
July83 weather score
July is one of Williston's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsJuly to August
These months have the strongest weather score in the monthly averages.
