Last updated: March 2, 2024
Under the Köppen–Geiger climate classification Grand Forks Air Force Base features a humid continental climate (Dfb). Temperatures typically range between -14 °C (8 °F) and 22 °C (72 °F) through the year, but rarely can drop to -38 °C (-36 °F) or can rise to as high as 41 °C (105 °F). The average annual precipitation amounts to about 573 mm (22.6 inches) and receives 83 rainy days on the 1 mm (0.04 inches) threshold annually. Grand Forks Air Force Base enjoys an average of 3017 hours of sunshine throughout the year, and daylight varies from 8 hours 26 minutes to 15 hours 57 minutes per day.
The warmest months in Grand Forks Air Force Base are June, July and August, with daily mean temperatures ranging from 20 to 22 °C (68 - 72 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -14 to -9 °C (8 - 17 °F) throughout the day. On average each year, Grand Forks Air Force Base experiences 62 days above 25 °C (77.0 °F) and 166 days below 0 °C (32.0 °F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum | 4°C (40°F) |
9°C (48°F) |
21°C (71°F) |
24°C (75°F) |
33°C (91°F) |
41°C (105°F) |
36°C (97°F) |
36°C (98°F) |
33°C (91°F) |
29°C (84°F) |
23°C (73°F) |
9°C (49°F) |
| Mean maximum | 3°C (37°F) |
3°C (38°F) |
11°C (53°F) |
20°C (68°F) |
29°C (85°F) |
31°C (89°F) |
33°C (92°F) |
33°C (92°F) |
31°C (88°F) |
24°C (76°F) |
12°C (54°F) |
6°C (44°F) |
| Average high | -8°C (17°F) |
-9°C (16°F) |
1°C (34°F) |
9°C (48°F) |
19°C (66°F) |
26°C (79°F) |
28°C (82°F) |
26°C (79°F) |
21°C (70°F) |
11°C (52°F) |
1°C (34°F) |
-5°C (24°F) |
| Daily mean | -13°C (10°F) |
-14°C (8°F) |
-4°C (26°F) |
3°C (38°F) |
13°C (55°F) |
20°C (68°F) |
22°C (72°F) |
20°C (68°F) |
15°C (59°F) |
6°C (43°F) |
-3°C (27°F) |
-9°C (17°F) |
| Average low | -17°C (2°F) |
-18°C (-1°F) |
-8°C (18°F) |
-2°C (29°F) |
7°C (44°F) |
14°C (57°F) |
16°C (62°F) |
14°C (57°F) |
10°C (50°F) |
2°C (35°F) |
-7°C (19°F) |
-13°C (9°F) |
| Mean minimum | -33°C (-27°F) |
-31°C (-23°F) |
-21°C (-6°F) |
-12°C (11°F) |
-2°C (29°F) |
8°C (46°F) |
10°C (50°F) |
8°C (46°F) |
2°C (36°F) |
-8°C (18°F) |
-18°C (0°F) |
-27°C (-17°F) |
| Minimum | -38°C (-36°F) |
-35°C (-30°F) |
-27°C (-16°F) |
-17°C (2°F) |
-5°C (23°F) |
5°C (41°F) |
8°C (47°F) |
6°C (44°F) |
-2°C (28°F) |
-11°C (13°F) |
-21°C (-5°F) |
-33°C (-28°F) |
Compare temperature, precipitation, sunshine, UV index in Grand Forks Air Force Base, North Dakota, United States with other places around the world.
Grand Forks Air Force Base usually has the most precipitation in August, September and October, with an average of 8 rainy days and 77 mm (3.0 inches) of precipitation per month. The driest months in Grand Forks Air Force Base are January, February and March. On average, 20 mm (0.8 inches) of precipitation falls during these months.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average precipitation mm (inches) | 17 (0.7) | 19 (0.7) | 24 (0.9) | 34 (1.3) | 54 (2.1) | 73 (2.9) | 61 (2.4) | 73 (2.9) | 77 (3.0) | 82 (3.2) | 24 (1.0) | 35 (1.4) |
| Average precipitation days (≥ 1 mm) | 4 | 5 | 5 | 6 | 8 | 9 | 9 | 8 | 8 | 9 | 5 | 7 |
The sunniest months in Grand Forks Air Force Base are June, July and August, when the sun shines an average of 11 hours 28 minutes a day. Least sunny months in Grand Forks Air Force Base: January, November and December receive an average of 5 hours 12 minutes of sunshine daily.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean monthly sunshine hours | 143 | 207 | 247 | 263 | 310 | 355 | 376 | 323 | 254 | 198 | 168 | 167 |
| Mean daily daylight hours | 8h 52m | 10h 14m | 11h 56m | 13h 41m | 15h 11m | 15h 57m | 15h 32m | 14h 11m | 12h 30m | 10h 46m | 9h 14m | 8h 26m |
Grand Forks Air Force Base experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 8 - 9, which corresponds to the Very High category of sun exposure. January, November and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 3. For more detailed information, check out our hourly Grand Forks Air Force Base UV Index data.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV Index (month maximum) | 2 | 4 | 5 | 7 | 8 | 9 | 9 | 8 | 7 | 4 | 3 | 2 |
Discover in-depth weather details for every month in Grand Forks Air Force Base. Click through the links below for comprehensive overviews of temperature trends, precipitation levels, sunshine hours, and solar UV radiation specifics. Whether planning a visit or simply curious about Grand Forks Air Force Base's climate nuances, these monthly breakdowns provide the information you need for an informed understanding of what to expect throughout the year.
Each link leads to a detailed account of the typical weather conditions for that month, providing both locals and tourists with vital information to plan their daily activities, wardrobe, and travel itineraries accordingly.