Morning Sun city, Iowa

Official LSAD Designation: Morning Sun city • Census GEOID: 1954120 • Louisa County

Climate Normals & Weather Observations

30-year climate normals (1991–2020) and weather observations for Morning Sun city.

Reference Weather Station: NEW BOSTON DAM 17, IL US (ID: USC00116080) • Located 12.1 miles from community center • Elevation: 167.0 m

Month	Average High (°F)	Average Low (°F)	Mean Temp (°F)	Precipitation (in)
January	31.5°	15.3°	23.4°	1.31"
February	36.0°	19.0°	27.5°	1.72"
March	48.6°	29.6°	39.1°	2.62"
April	61.9°	40.4°	51.2°	3.56"
May	72.9°	51.8°	62.4°	5.05"
June	82.5°	61.9°	72.2°	4.59"
July	86.0°	65.3°	75.7°	3.52"
August	83.9°	62.9°	73.4°	3.83"
September	77.4°	54.5°	66.0°	3.34"
October	64.3°	43.3°	53.8°	2.86"
November	49.4°	31.9°	40.7°	2.13"
December	36.7°	21.8°	29.3°	1.77"

2010–2025, completed calendar years only.

NOAA station NEW BOSTON DAM 17, IL US (ID: USC00116080) • 12.1 miles from community center .

This is the same reference station used for monthly normals.

Show annual mean of daily highs and lows

Annual mean Annual mean of daily highs Annual mean of daily lows

Annual temperature data table (°F)

Annual station temperatures, 2010–2025. Unavailable means no reported value.
Year	Annual mean (°F)	Annual mean of daily highs (°F)	Annual mean of daily lows (°F)
2010	51.8	61.4	42.2
2011	51.6	61.3	42.0
2012	54.4	64.7	44.0
2013	49.6	59.5	39.7
2014	47.7	57.4	38.0
2015	51.6	61.4	41.8
2016	53.8	63.1	44.5
2017	52.7	62.8	42.5
2018	50.7	60.1	41.4
2019	50.3	59.2	41.5
2020	52.2	61.3	43.0
2021	52.7	62.4	43.1
2022	50.7	61.3	40.1
2023	53.7	64.2	43.2
2024	Unavailable	Unavailable	Unavailable
2025	Unavailable	Unavailable	42.4

Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.