Duncombe, IA
Climate overview — based on NOAA 1991-2020 normals from WEBSTER CITY, IA US.
Year-round temperatures (°F)
Climate summary
Duncombe has an annual average temperature of 46.1°F with about 37.2 inches of precipitation per year and 32.9 inches of snow. The warmest month is July (average high 82.8°F), and the coldest is January (average low 6.9°F). June is typically the wettest month (5.76 in) and January the driest (0.87 in). Snow typically falls from November through May.
Best time to visit Duncombe
Full guide →Climate change signal
All-time records →21 of 366 (5.7%) of Duncombe's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.
| 1890s | 10 | |
| 1900s | 8 | |
| 1910s | 31 | |
| 1920s | 31 | |
| 1930s | 97 | |
| 1940s | 32 | |
| 1950s | 21 | |
| 1960s | 13 | |
| 1970s | 9 | |
| 1980s | 27 | |
| 1990s | 23 | |
| 2000s | 25 | |
| 2010s | 26 | |
| 2020s | 13 |
Bars: number of all-time daily heat records still standing that were set in each decade.
Monthly averages
| Month | Avg High | Avg Low | Avg Temp | Precipitation | Snow | Rainy days |
|---|---|---|---|---|---|---|
| January | 26.2°F | 6.9°F | 16.6°F | 0.87 in | 7.9 in | 6 |
| February | 30.8°F | 10.9°F | 20.9°F | 1.34 in | 9.8 in | 6 |
| March | 44.1°F | 23.3°F | 33.7°F | 2.05 in | 4.4 in | 7 |
| April | 58.9°F | 33.9°F | 46.4°F | 3.72 in | 1.0 in | 10 |
| May | 70.0°F | 46.7°F | 58.3°F | 5.27 in | 0.2 in | 13 |
| June | 79.5°F | 57.2°F | 68.3°F | 5.76 in | — | 12 |
| July | 82.8°F | 60.8°F | 71.8°F | 4.41 in | — | 9 |
| August | 80.5°F | 58.0°F | 69.2°F | 4.75 in | — | 9 |
| September | 74.8°F | 48.9°F | 61.8°F | 3.36 in | — | 8 |
| October | 61.9°F | 36.5°F | 49.2°F | 2.65 in | 0.1 in | 8 |
| November | 45.4°F | 24.1°F | 34.8°F | 1.70 in | 1.4 in | 6 |
| December | 31.7°F | 13.3°F | 22.5°F | 1.36 in | 8.1 in | 6 |
Climate twins of Duncombe
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).