Hot-summer humid continental climate

Climate Saybrook - Illinois

Annual high61ºF

Annual low40ºF

Precipitation38.06 inch

Month	HighºF	LowºF	Precipinch
Jan	31	15	2.01
Feb	36	19	1.76
Mar	48	28	2.61
Apr	62	39	3.60
May	72	50	4.36
Jun	81	60	3.91
Jul	84	62	4.16
Aug	83	60	3.90
Sep	78	52	2.89
Oct	66	41	3.21
Nov	50	31	3.35
Dec	35	19	2.30

JanHigh 31ºFLow 15ºFPrecip 2.01 inch
FebHigh 36ºFLow 19ºFPrecip 1.76 inch
MarHigh 48ºFLow 28ºFPrecip 2.61 inch
AprHigh 62ºFLow 39ºFPrecip 3.60 inch
MayHigh 72ºFLow 50ºFPrecip 4.36 inch
JunHigh 81ºFLow 60ºFPrecip 3.91 inch
JulHigh 84ºFLow 62ºFPrecip 4.16 inch
AugHigh 83ºFLow 60ºFPrecip 3.90 inch
SepHigh 78ºFLow 52ºFPrecip 2.89 inch
OctHigh 66ºFLow 41ºFPrecip 3.21 inch
NovHigh 50ºFLow 31ºFPrecip 3.35 inch
DecHigh 35ºFLow 19ºFPrecip 2.30 inch

Saybrook Climate Graph - Illinois Climate Chart

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Climate summary

What is the average weather in Saybrook, Illinois?

Saybrook experiences a humid continental climate, marked by very strong seasonal temperature swings. Summers are warm and fairly wet, with the most precipitation arriving in May. Winters are cold, and the drier season overall, though precipitation is spread relatively evenly through the year.

Based on climate normals · 1991–2020

Saybrook weather averages

Annual high61ºF

Annual low40ºF

Precipitation38.06 inch

Daily normals Saybrook - Illinois - January

Day	HighºF	LowºF	Prec/moinch	Prec/yrinch
Jan 1	31.3	15.3	0.08	0.08
Jan 2	31.2	15.2	0.20	0.20
Jan 3	31.1	15.1	0.28	0.28
Jan 4	31.1	15.0	0.35	0.35
Jan 5	31.0	14.9	0.43	0.43
Jan 6	31.0	14.8	0.51	0.51
Jan 7	31.0	14.8	0.59	0.59
Jan 8	31.0	14.7	0.67	0.67
Jan 9	31.0	14.7	0.75	0.75
Jan 10	31.0	14.6	0.83	0.83
Jan 11	31.0	14.6	0.91	0.91
Jan 12	31.0	14.6	0.94	0.94
Jan 13	31.1	14.6	1.02	1.02
Jan 14	31.1	14.6	1.10	1.10
Jan 15	31.2	14.6	1.18	1.18
Jan 16	31.2	14.6	1.22	1.22
Jan 17	31.3	14.7	1.30	1.30
Jan 18	31.4	14.7	1.38	1.38
Jan 19	31.4	14.8	1.42	1.42
Jan 20	31.5	14.8	1.50	1.50
Jan 21	31.6	14.9	1.54	1.54
Jan 22	31.7	15.0	1.61	1.61
Jan 23	31.8	15.0	1.65	1.65
Jan 24	31.9	15.1	1.69	1.69
Jan 25	32.0	15.2	1.73	1.73
Jan 26	32.1	15.3	1.81	1.81
Jan 27	32.2	15.4	1.85	1.85
Jan 28	32.4	15.6	1.89	1.89
Jan 29	32.5	15.7	1.93	1.93
Jan 30	32.6	15.8	1.97	1.97
Jan 31	32.8	16.0	2.01	2.01

Precipitation and snow add up through the month (/mo) and the year (/yr)

Weather history Saybrook - December 2011

Day	HighºF	LowºF	Precip.inch	Snowinch	Snow depthinch
Dec 1	41.0	23.0	0.00	–	–
Dec 2	45.0	26.1	0.00	–	–
Dec 3	44.1	30.0	0.00	–	–
Dec 4	54.0	44.1	0.14	–	–
Dec 5	52.0	30.9	0.00	–	–
Dec 6	36.0	30.9	0.00	–	–
Dec 7	37.0	25.0	0.00	–	–
Dec 8	35.1	19.0	0.00	–	–
Dec 9	36.0	24.1	T	T	T
Dec 10	30.9	8.1	0.00	–	–
Dec 11	28.0	8.1	0.00	–	–
Dec 12	43.0	21.0	0.00	–	–
Dec 13	46.9	21.9	0.01	–	–
Dec 14	44.1	35.1	0.22	–	–
Dec 15	55.9	44.1	1.39	–	–
Dec 16	50.0	24.1	0.00	–	–
Dec 17	34.0	23.0	0.00	–	–
Dec 18	36.0	21.0	0.00	–	–
Dec 19	46.9	21.9	0.00	–	–
Dec 20	52.0	33.1	0.29	–	–
Dec 21	43.0	33.1	0.13	–	–
Dec 22	42.1	27.0	T	–	–
Dec 23	37.9	25.0	T	–	–
Dec 24	33.1	19.0	0.00	–	–
Dec 25	37.9	26.1	0.00	–	–
Dec 26	44.1	19.0	0.00	–	–
Dec 27	42.1	19.9	0.51	0.91	0.0
Dec 28	37.0	19.9	0.00	0.00	0.0
Dec 29	35.1	23.0	0.00	–	–
Dec 30	52.0	34.0	0.05	–	–
Dec 31	45.0	34.0	0.08	–	–

The data for December 2011 is incomplete: some days or values are missing.

–No data
–Not yet observed or received
TTrace, too small to measure

Observed extremes

Highest max temperature55.9ºF · Dec 15
Lowest max temperature28.0ºF · Dec 11
Highest min temperature44.1ºF · Dec 4
Lowest min temperature8.1ºF · Dec 10

Geo Saybrook - Illinois

40.43°N, 88.53°W

Location

Country: United States
State: Illinois
County: –
City: Saybrook
Zip Code: 61770
Elevation: 807 ft
Longitude: -88.53
Latitude: 40.43
ICAO: –
IATA: –

Map of Saybrook - Illinois

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USGS National Map