Knife River, ND climate
Knife River has cold, snowy winters and pleasant summers, with very little rain. A typical July afternoon reaches 82°, a January night drops to 2°, and about 35 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Knife River feels like
Winter
Spring
Summer
Fall
Knife River weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | 30-yr range |
|---|---|---|---|---|---|---|
| January | 20° | 2° | 0.4" | 7.6" | 4 | -1° – 27° |
| February | 25° | 6° | 0.4" | 6.1" | 4 | -4° – 29° |
| March | 38° | 17° | 0.6" | 6.1" | 4 | 14° – 41° |
| April | 54° | 29° | 1.1" | 2.7" | 6 | 32° – 49° |
| May | 66° | 40° | 2.4" | 0.7" | 9 | 48° – 60° |
| June | 76° | 50° | 3.2" | 0 | 11 | 58° – 68° |
| July | 82° | 55° | 2.8" | 0 | 9 | 61° – 74° |
| August | 82° | 53° | 1.8" | 0 | 6 | 62° – 73° |
| September | 72° | 43° | 1.7" | 0 | 6 | 53° – 64° |
| October | 55° | 31° | 1.1" | 2.0" | 6 | 34° – 48° |
| November | 37° | 18° | 0.6" | 3.1" | 4 | 15° – 39° |
| December | 25° | 7° | 0.5" | 6.5" | 5 | 4° – 25° |
| Year | 53° | 29° | 16.7" | 34.8" | 74 |
“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.
Rain and snow in Knife River
Knife River gets 17 inches of rain and melted snow a year. June is the wettest month and February the driest. Rain or snow falls on about 74 days a year.
About 121 frost-free days a year
In half of years the last 32° night comes by May 20 and the first one by September 20. That leaves about 121 frost-free days for gardens, shorter than 97% of U.S. towns.
Heating and cooling a home in Knife River
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Knife River, 95% of that work is heating and 5% is cooling, so the furnace matters far more than the air conditioner.
Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.
Knife River and its neighbors
Knife River borders 3 towns with climate data. January nights across them vary by 0.5°. Brookbank has the coldest January nights (2°) and Osborn the hottest July afternoons (83°). Knife River’s January low is 2° and its July high 82°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Knife River compares
Compared with every U.S. town and city on TownTapestry, each counted once.
Warmer than it used to be
The last 30 years in Knife River averaged 1.3° warmer than the 1900s. The biggest change is in January (+4.3°). The shift is larger than in 55% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Knife River’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. February swings the most: between 1991 and 2020 its average temperature ranged from -4° to 29°. June is the most reliable, staying within 10°.
Common questions about Knife River’s climate
What is the coldest month in Knife River?
January, with a typical high of 20° and a low of 2°.
What is the hottest month in Knife River?
July, with a typical high of 82° and a low of 55°. About 20 days a year reach 90°.
How much snow does Knife River get?
About 35 inches in a normal winter, most of it in January.
When is the first frost in Knife River?
In half of years the first 32° night comes by September 20, and the last spring frost by May 20.
What is the rainiest month in Knife River?
June, with 3.2 inches of rain and melted snow. The year totals 17 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Knife River itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Keene 3s, ND (23 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.