Last updated: May 6, 2024
Under the Köppen–Geiger climate classification Lamoni features a humid continental climate (Dfa).Temperatures typically range between -4 °C (26 °F) and 25 °C (78 °F) through the year, but rarely can drop to -30 °C (-21 °F) or can rise to as high as 39 °C (102 °F).The average annual precipitation amounts to about 1139 mm (44.8 inches) and receives 104 rainy days on the 1 mm (0.04 inches) threshold annually.Lamoni enjoys an average of 3065 hours of sunshine throughout the year, and daylight varies from 9 hours 18 minutes to 15 hours 1 minutes per day.
The warmest months in Lamoni are June, July and August, with daily mean temperatures ranging from 24 to 25 °C (75 - 78 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -4 to 1 °C (26 - 34 °F) throughout the day. On average each year, Lamoni experiences 105 days above 25 °C (77.0 °F) and 107 days below 0 °C (32.0 °F).
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Maximum | 16°C (60°F) | 23°C (74°F) | 24°C (75°F) | 29°C (85°F) | 38°C (101°F) | 39°C (102°F) | 37°C (98°F) | 37°C (99°F) | 33°C (91°F) | 31°C (89°F) | 24°C (75°F) | 23°C (73°F) |
Mean maximum | 13°C (56°F) | 18°C (64°F) | 22°C (71°F) | 27°C (81°F) | 32°C (90°F) | 34°C (94°F) | 35°C (95°F) | 34°C (93°F) | 32°C (90°F) | 30°C (86°F) | 20°C (68°F) | 18°C (64°F) |
Average high | 1°C (34°F) | 3°C (37°F) | 11°C (52°F) | 16°C (62°F) | 23°C (73°F) | 29°C (85°F) | 30°C (87°F) | 29°C (84°F) | 26°C (79°F) | 17°C (64°F) | 10°C (50°F) | 6°C (43°F) |
Daily mean | -4°C (26°F) | -2°C (28°F) | 6°C (43°F) | 11°C (51°F) | 18°C (64°F) | 24°C (76°F) | 25°C (78°F) | 24°C (75°F) | 21°C (70°F) | 12°C (54°F) | 5°C (41°F) | 1°C (34°F) |
Average low | -8°C (18°F) | -8°C (19°F) | 1°C (34°F) | 5°C (41°F) | 13°C (55°F) | 19°C (66°F) | 21°C (69°F) | 18°C (66°F) | 15°C (60°F) | 7°C (45°F) | -1°C (31°F) | -4°C (25°F) |
Mean minimum | -23°C (-10°F) | -20°C (-3°F) | -11°C (13°F) | -5°C (23°F) | 5°C (42°F) | 13°C (55°F) | 16°C (60°F) | 13°C (55°F) | 8°C (46°F) | -2°C (28°F) | -11°C (12°F) | -14°C (6°F) |
Minimum | -30°C (-21°F) | -27°C (-16°F) | -21°C (-5°F) | -10°C (15°F) | 2°C (36°F) | 11°C (51°F) | 14°C (58°F) | 11°C (52°F) | 6°C (44°F) | -4°C (25°F) | -16°C (3°F) | -26°C (-15°F) |
Compare temperature, precipitation, sunshine, UV index in Lamoni, Iowa, United States with other places around the world.
Lamoni usually has the most precipitation in May, June and October, with an average of 11 rainy days and 154 mm (6.1 inches) of precipitation per month.The driest months in Lamoni are January, February and December. On average, 40 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) | 45 (1.8) | 39 (1.5) | 100 (3.9) | 75 (3.0) | 161 (6.3) | 132 (5.2) | 112 (4.4) | 91 (3.6) | 125 (4.9) | 170 (6.7) | 52 (2.0) | 37 (1.5) |
Average precipitation days (≥ 1 mm) | 6 | 7 | 10 | 10 | 14 | 10 | 9 | 10 | 8 | 11 | 6 | 3 |
The sunniest months in Lamoni are June, July and August, when the sun shines an average of 11 hours 17 minutes a day.Least sunny months in Lamoni: January, February and November receive an average of 6 hours 1 minutes of sunshine daily.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mean monthly sunshine hours | 142 | 193 | 212 | 263 | 273 | 341 | 366 | 330 | 284 | 237 | 206 | 215 |
Mean daily daylight hours | 9h 37m | 10h 39m | 11h 58m | 13h 19m | 14h 27m | 15h 1m | 14h 42m | 13h 41m | 12h 24m | 11h 4m | 9h 53m | 9h 18m |
Lamoni experiences the highest level of ultraviolet (UV) radiation in April, June and July, 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 Lamoni UV Index data.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
UV Index (month maximum) | 3 | 5 | 6 | 9 | 9 | 11 | 11 | 9 | 9 | 6 | 4 | 3 |