Plymouth village, Illinois

Official LSAD Designation: Plymouth village • Census GEOID: 1760833 • Hancock County / McDonough County

Climate Normals & Weather Observations

30-year climate normals (1991–2020) and weather observations for Plymouth village.

Reference Weather Station: BENTLEY, IL US (ID: USC00110598) • Located 11.0 miles from community center • Elevation: 198.1 m

Month	Average High (°F)	Average Low (°F)	Mean Temp (°F)	Precipitation (in)
January	33.9°	17.7°	25.8°	1.67"
February	38.9°	21.7°	30.3°	1.98"
March	50.9°	31.9°	41.4°	2.57"
April	63.4°	42.1°	52.8°	4.11"
May	73.7°	53.4°	63.6°	5.28"
June	83.0°	63.2°	73.1°	4.85"
July	86.3°	66.5°	76.4°	4.29"
August	84.9°	63.8°	74.3°	4.19"
September	78.8°	55.5°	67.2°	3.67"
October	66.0°	44.1°	55.1°	3.16"
November	51.3°	32.8°	42.0°	2.45"
December	39.1°	23.6°	31.3°	1.89"

2010–2025, completed calendar years only.

NOAA station BENTLEY, IL US (ID: USC00110598) • 11.0 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	52.7	64.1	41.4
2011	Unavailable	Unavailable	Unavailable
2012	55.3	66.9	43.8
2013	51.0	61.3	40.8
2014	49.3	59.1	39.5
2015	53.2	63.2	43.2
2016	55.0	64.8	45.3
2017	54.4	64.9	43.9
2018	52.6	62.3	43.0
2019	52.0	61.4	42.7
2020	53.5	63.0	44.0
2021	53.7	63.3	44.1
2022	51.6	62.3	40.8
2023	54.8	65.8	43.8
2024	55.2	65.7	44.6
2025	53.1	64.2	42.0

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