Carter Lake, IA
Climate overview — based on NOAA 1991-2020 normals from OMAHA EPPLEY AIRFIELD, NE US.
Year-round temperatures (°F)
Climate summary
Carter Lake has an annual average temperature of 52.4°F with about 31.9 inches of precipitation per year and 27.1 inches of snow. The warmest month is July (average high 88.1°F), and the coldest is January (average low 15.2°F). May is typically the wettest month (4.66 in) and January the driest (0.75 in). Snow typically falls from October through April.
Best time to visit Carter Lake
Full guide →Climate change signal
All-time records →64 of 366 (17.5%) of Carter Lake'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.
| 1940s | 4 | |
| 1950s | 55 | |
| 1960s | 38 | |
| 1970s | 55 | |
| 1980s | 47 | |
| 1990s | 38 | |
| 2000s | 35 | |
| 2010s | 55 | |
| 2020s | 39 |
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 | 33.6°F | 15.2°F | 24.4°F | 0.75 in | 7.2 in | 7 |
| February | 38.6°F | 19.3°F | 28.9°F | 0.95 in | 7.8 in | 7 |
| March | 52.1°F | 30.0°F | 41.0°F | 1.79 in | 3.0 in | 8 |
| April | 64.1°F | 41.1°F | 52.6°F | 3.17 in | 1.0 in | 11 |
| May | 74.6°F | 52.7°F | 63.6°F | 4.66 in | 0.1 in | 13 |
| June | 84.4°F | 63.4°F | 73.9°F | 4.44 in | — | 11 |
| July | 88.1°F | 68.0°F | 78.1°F | 3.55 in | — | 10 |
| August | 85.8°F | 65.6°F | 75.7°F | 4.60 in | — | 9 |
| September | 79.1°F | 56.1°F | 67.6°F | 2.96 in | — | 8 |
| October | 65.5°F | 43.2°F | 54.4°F | 2.32 in | 0.5 in | 7 |
| November | 50.3°F | 30.2°F | 40.2°F | 1.45 in | 1.7 in | 6 |
| December | 37.7°F | 19.8°F | 28.7°F | 1.22 in | 5.8 in | 7 |
Climate twins of Carter Lake
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).