Last updated: May 6, 2024
Under the Köppen–Geiger climate classification Le Grand features a humid continental climate (Dfa).Temperatures typically range between -6 °C (21 °F) and 24 °C (76 °F) through the year, but rarely can drop to -33 °C (-28 °F) or can rise to as high as 36 °C (97 °F).The average annual precipitation amounts to about 1019 mm (40.1 inches) and receives 107 rainy days on the 1 mm (0.04 inches) threshold annually.Le Grand enjoys an average of 2961 hours of sunshine throughout the year, and daylight varies from 9 hours 8 minutes to 15 hours 11 minutes per day.
The warmest months in Le Grand are June, July and August, with daily mean temperatures ranging from 22 to 24 °C (73 - 76 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -6 to -1 °C (21 - 30 °F) throughout the day. On average each year, Le Grand experiences 91 days above 25 °C (77.0 °F) and 125 days below 0 °C (32.0 °F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum | 14°C (57°F) | 21°C (70°F) | 22°C (72°F) | 29°C (84°F) | 35°C (95°F) | 36°C (97°F) | 34°C (94°F) | 35°C (95°F) | 33°C (92°F) | 31°C (89°F) | 24°C (75°F) | 23°C (73°F) |
| Mean maximum | 10°C (50°F) | 14°C (57°F) | 20°C (68°F) | 26°C (79°F) | 32°C (90°F) | 33°C (92°F) | 33°C (92°F) | 32°C (90°F) | 32°C (90°F) | 30°C (86°F) | 18°C (65°F) | 16°C (61°F) |
| Average high | -2°C (29°F) | -1°C (31°F) | 8°C (47°F) | 15°C (58°F) | 21°C (71°F) | 28°C (82°F) | 29°C (84°F) | 28°C (82°F) | 25°C (78°F) | 16°C (61°F) | 8°C (47°F) | 3°C (38°F) |
| Daily mean | -6°C (21°F) | -5°C (22°F) | 3°C (38°F) | 9°C (48°F) | 16°C (62°F) | 23°C (73°F) | 24°C (76°F) | 22°C (73°F) | 20°C (68°F) | 11°C (52°F) | 3°C (38°F) | -1°C (30°F) |
| Average low | -10°C (14°F) | -10°C (14°F) | -1°C (30°F) | 3°C (39°F) | 11°C (53°F) | 18°C (64°F) | 19°C (67°F) | 17°C (63°F) | 14°C (58°F) | 6°C (44°F) | -2°C (29°F) | -6°C (22°F) |
| Mean minimum | -24°C (-12°F) | -24°C (-11°F) | -13°C (8°F) | -7°C (21°F) | 3°C (38°F) | 12°C (53°F) | 14°C (58°F) | 11°C (53°F) | 6°C (44°F) | -4°C (26°F) | -11°C (12°F) | -16°C (4°F) |
| Minimum | -32°C (-25°F) | -33°C (-28°F) | -22°C (-8°F) | -11°C (13°F) | -0°C (31°F) | 9°C (49°F) | 12°C (54°F) | 10°C (51°F) | 3°C (38°F) | -6°C (22°F) | -17°C (1°F) | -22°C (-8°F) |
Compare temperature, precipitation, sunshine, UV index in Le Grand, Iowa, United States with other places around the world.
Le Grand usually has the most precipitation in May, June and October, with an average of 12 rainy days and 143 mm (5.6 inches) of precipitation per month.The driest months in Le Grand are January, November and December. On average, 41 mm (1.6 inches) of precipitation falls during these months.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average precipitation mm (inches) | 41 (1.6) | 47 (1.9) | 72 (2.8) | 83 (3.3) | 157 (6.2) | 132 (5.2) | 88 (3.5) | 61 (2.4) | 114 (4.5) | 141 (5.5) | 46 (1.8) | 37 (1.4) |
| Average precipitation days (≥ 1 mm) | 6 | 8 | 8 | 11 | 15 | 10 | 10 | 8 | 9 | 11 | 6 | 5 |
The sunniest months in Le Grand are June, July and August, when the sun shines an average of 11 hours 14 minutes a day.Least sunny months in Le Grand: January, February and December receive an average of 5 hours 41 minutes of sunshine daily.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean monthly sunshine hours | 132 | 185 | 220 | 245 | 252 | 338 | 368 | 327 | 271 | 219 | 201 | 199 |
| Mean daily daylight hours | 9h 29m | 10h 35m | 11h 58m | 13h 23m | 14h 35m | 15h 11m | 14h 51m | 13h 47m | 12h 25m | 11h 0m | 9h 46m | 9h 8m |
Le Grand experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 9 - 11, which corresponds to the Very High / Extreme category of sun exposure.January, November and December are in the Moderate exposure category. In these months, the maximum values of the UV index do not exceed 4. For more detailed information, check out our hourly Le Grand UV Index data.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV Index (month maximum) | 3 | 5 | 6 | 8 | 9 | 11 | 10 | 9 | 8 | 6 | 4 | 3 |