When is the first freeze in Bismarck, ND?
NOAA's 1991-2020 climate normals for BISMARCK, ND US put the middle date for the first fall freeze (32°F or colder) at about Sep 27. The middle date for the first hard freeze (28°F or colder) is about Oct 5.
NWS forecasts 28°F on Saturday night, Oct 24 for ZIP 58501 (checked Oct 24, 1:56 AM CDT). Data: NOAA/NWS forecast for the center point of ZIP 58501, the same point ForecastBooked uses for that ZIP. Other parts of Bismarck can read a few degrees warmer or colder. ForecastBooked is not affiliated with or endorsed by NOAA/NWS.
| First fall freeze (32°F), middle date | Sep 27 |
|---|---|
| First hard freeze (28°F), middle date | Oct 5 |
| Last spring freeze (32°F), middle date | May 14 |
| Early first freeze (32°F), 1 year in 10 sooner | Sep 15 |
| Chance of a 32°F night in a year | 100% |
| Weather station | BISMARCK, ND US (USW00024011) |
The middle date is NOAA's 50% date. In about half of years the first freeze comes sooner, and in half it comes later. One station can differ from nearby areas, mostly low or rural spots. Dates change each year, so check the latest National Weather Service forecast.
Running an HVAC or plumbing shop here? To get a fall tune-up email out before the first freeze in about 9 years out of 10, send it by Sep 1. Free tune-up email timer for 49 cities.
Freezing night coming? Check the NWS forecast for pipe-freeze risk by ZIP.
For HVAC and plumbing shops in Bismarck
ForecastBooked watches the NWS forecast for the ZIPs you serve. When the first freeze is really in the forecast, a ready-to-send email, text, Google post and social post for your customers appears on your kit page. Pro and up also get a graphic.
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NOAA National Centers for Environmental Information, U.S. Climate Normals 1991-2020, annual/seasonal normals, station USW00024011: fields ANN-TMIN-PRBFST-T32FP50, ANN-TMIN-PRBFST-T32FP10, ANN-TMIN-PRBFST-T28FP50, ANN-TMIN-PRBLST-T32FP50, ANN-TMIN-PRBOCC-LSTH032. https://www.ncei.noaa.gov/data/normals-annualseasonal/1991-2020/access/USW00024011.csv. ForecastBooked is not affiliated with or endorsed by NOAA.