Home › Cities › United States › North Dakota › Grand Forks
Grand Forks, North Dakota climate
Dfb Warm-summer humid continental
Grand Forks has a strongly seasonal cold-temperate climate (Warm-summer humid continental, Köppen Dfb). The hottest month is July with an average daily high near 80°F, while the coldest is January averaging around −1°F at night. Precipitation totals about 23 inches a year and is strongly seasonal — June alone averages 4.1 inches while January barely receives 0.49 inches. Winters bring significant snowfall (49 inches of snow per year on average).
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation split into rain and snow · 1991–2020 normals · hover a month for the exact figuresClear vs cloudy days
Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day countsGrand Forks climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 15 | 20 | 34 | 52 | 67 | 76 | 80 | 79 | 70 | 53 | 35 | 21 |
| Avg temp (°F) | 7 | 11 | 25 | 42 | 55 | 65 | 70 | 68 | 59 | 44 | 27 | 13 |
| Avg low (°F) | −1 | 3 | 17 | 31 | 44 | 55 | 59 | 57 | 47 | 35 | 20 | 6 |
| Precipitation (in) | 0.5 | 0.6 | 0.9 | 1.2 | 3.0 | 4.1 | 3.6 | 3.0 | 2.4 | 2.0 | 0.8 | 0.7 |
| Snowfall (in) | 9.5 | 8.2 | 7.8 | 3.0 | 0.1 | — | — | — | — | 1.5 | 5.1 | 13.5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 15 | 20 | 34 | 52 | 67 | 76 |
| Avg temp (°F) | 7 | 11 | 25 | 42 | 55 | 65 |
| Avg low (°F) | −1 | 3 | 17 | 31 | 44 | 55 |
| Precipitation (in) | 0.5 | 0.6 | 0.9 | 1.2 | 3.0 | 4.1 |
| Snowfall (in) | 9.5 | 8.2 | 7.8 | 3.0 | 0.1 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 80 | 79 | 70 | 53 | 35 | 21 |
| Avg temp (°F) | 70 | 68 | 59 | 44 | 27 | 13 |
| Avg low (°F) | 59 | 57 | 47 | 35 | 20 | 6 |
| Precipitation (in) | 3.6 | 3.0 | 2.4 | 2.0 | 0.8 | 0.7 |
| Snowfall (in) | — | — | — | 1.5 | 5.1 | 13.5 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 7 | 6 | 7 | 7 | 10 | 12 | 10 | 9 | 9 | 8 | 6 | 8 |
| Days with high ≥ 90°F (days) | — | — | — | 0.0 | 0.5 | 1 | 2 | 2 | 0.6 | 0.0 | — | — |
| Days with low ≤ 32°F (days) | 31 | 28 | 28 | 17 | 4 | — | — | — | 0.9 | 13 | 26 | 31 |
| Days with snowfall ≥ 1 in (days) | 3 | 3 | 2 | 0.8 | — | — | — | — | — | 0.4 | 2 | 4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 7 | 6 | 7 | 7 | 10 | 12 |
| Days with high ≥ 90°F (days) | — | — | — | 0.0 | 0.5 | 1 |
| Days with low ≤ 32°F (days) | 31 | 28 | 28 | 17 | 4 | — |
| Days with snowfall ≥ 1 in (days) | 3 | 3 | 2 | 0.8 | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 10 | 9 | 9 | 8 | 6 | 8 |
| Days with high ≥ 90°F (days) | 2 | 2 | 0.6 | 0.0 | — | — |
| Days with low ≤ 32°F (days) | — | — | 0.9 | 13 | 26 | 31 |
| Days with snowfall ≥ 1 in (days) | — | — | — | 0.4 | 2 | 4 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 62 | 59 | 65 | 65 | 64 | 62 | 52 | 52 | 56 | 66 | 66 | 65 |
| Clear days (≤ 30% cloud) | 4 | 5 | 4 | 5 | 6 | 5 | 7 | 8 | 8 | 5 | 4 | 4 |
| Partly cloudy days (30–70%) | 14 | 12 | 12 | 10 | 10 | 11 | 15 | 13 | 11 | 10 | 11 | 11 |
| Cloudy days (≥ 70%) | 13 | 12 | 15 | 15 | 16 | 14 | 8 | 10 | 12 | 16 | 16 | 15 |
| Relative humidity (%) | 92 | 88 | 76 | 64 | 63 | 67 | 65 | 63 | 66 | 72 | 80 | 88 |
| Wind speed (mph) | 8.1 | 8.5 | 9.0 | 8.6 | 8.0 | 6.9 | 6.2 | 6.2 | 7.2 | 7.9 | 8.0 | 7.9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 62 | 59 | 65 | 65 | 64 | 62 |
| Clear days (≤ 30% cloud) | 4 | 5 | 4 | 5 | 6 | 5 |
| Partly cloudy days (30–70%) | 14 | 12 | 12 | 10 | 10 | 11 |
| Cloudy days (≥ 70%) | 13 | 12 | 15 | 15 | 16 | 14 |
| Relative humidity (%) | 92 | 88 | 76 | 64 | 63 | 67 |
| Wind speed (mph) | 8.1 | 8.5 | 9.0 | 8.6 | 8.0 | 6.9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 52 | 52 | 56 | 66 | 66 | 65 |
| Clear days (≤ 30% cloud) | 7 | 8 | 8 | 5 | 4 | 4 |
| Partly cloudy days (30–70%) | 15 | 13 | 11 | 10 | 11 | 11 |
| Cloudy days (≥ 70%) | 8 | 10 | 12 | 16 | 16 | 15 |
| Relative humidity (%) | 65 | 63 | 66 | 72 | 80 | 88 |
| Wind speed (mph) | 6.2 | 6.2 | 7.2 | 7.9 | 8.0 | 7.9 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Grand Forks Univ (nws) (NOAA GHCN station USC00323621), about 5 km from the city centre.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.