Watford City, ND 58854 Frost Dates
Watford City, ND: when does the frost end?
The last spring frost here typically falls around 05/09, about 254 days from today. Fall's first freeze usually shows up around 09/27, roughly 139 days after the last spring frost.
Watford City sits in USDA Zone 4a (-30 to -25°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
With roughly 4 weeks until Watford City's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Watford City's last frost
05/09 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/28 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/22 and only about 1 year in 10 sees frost after that.
Watford City against the rest of the dataset
At roughly 139 frost-free days, Watford City places 37,225 of 40,283 ZIP codes in this dataset. Within ND, it ranks 135 of 405.
Learn more
Before leaning on 58854's figures: local microclimates explains what one yard in Watford City can differ from the 58854 normal, while zone vs. frost date explains why Zone 4a and Watford City's frost date answer different questions.