Climate Jerseyville - Illinois

	JanJa	FebFe	MarMa	AprAp	MayMa	JunJu
Average high in ºF Av. high Hi	37	42	53	65	75	83
Average low in ºF Av. low Lo	19	23	32	42	53	62
Av. precipitation in inch Av. precip. Pre.	2.17	2.25	3.24	3.88	4.61	3.84
Av. snowfall in inch Snowfall Sn	4	3	2	0	0	0

	JulJu	AugAu	SepSe	OctOc	NovNo	DecDe
Average high in ºF Av. high Hi	87	86	79	67	54	40
Average low in ºF Av. low Lo	66	63	54	43	34	22
Av. precipitation in inch Av. precip. Pre.	3.62	3.17	3.41	3.21	4.08	3.12
Av. snowfall in inch Snowfall Sn	0	0	0	0	1	4

Jerseyville Climate Graph - Illinois Climate Chart

Day	High ºF	Low ºF	Prec/mo inch	Prec/yr inch	Snow/mo inch	Snow/yr inch
1 Jan	36.6	19.3	0.08	0.08	0.12	0.30
2 Jan	36.5	19.2	0.16	0.16	0.31	0.80
3 Jan	36.4	19.1	0.24	0.24	0.39	1.00
4 Jan	36.4	19.1	0.31	0.31	0.59	1.50
5 Jan	36.3	19.0	0.39	0.39	0.71	1.80
6 Jan	36.3	19.0	0.47	0.47	0.91	2.30
7 Jan	36.3	18.9	0.55	0.55	0.98	2.50
8 Jan	36.2	18.9	0.63	0.63	1.18	3.00
9 Jan	36.2	18.8	0.71	0.71	1.30	3.30
10 Jan	36.2	18.8	0.79	0.79	1.42	3.60
11 Jan	36.2	18.8	0.87	0.87	1.61	4.10
12 Jan	36.2	18.8	0.91	0.91	1.69	4.30

Day	High ºF	Low ºF	Precip. inch	Snow inch	Snow d. inch
01 Jun	82.9	64.9	0.42	0.00	0.0
02 Jun	84.9	62.1	0.25	0.00	0.0
03 Jun	81.0	53.1	0.00	0.00	0.0
04 Jun	82.0	59.0	0.00	0.00	0.0
05 Jun	86.0	63.0	0.00	0.00	0.0
06 Jun	-	-	-	-	-
07 Jun	-	-	-	-	-
08 Jun	-	-	-	-	-
09 Jun	-	-	-	-	-
10 Jun	-	-	-	-	-
11 Jun	-	-	-	-	-
12 Jun	-	-	-	-	-
13 Jun	-	-	-	-	-
14 Jun	-	-	-	-	-
15 Jun	-	-	-	-	-
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17 Jun	-	-	-	-	-
18 Jun	-	-	-	-	-
19 Jun	-	-	-	-	-
20 Jun	-	-	-	-	-
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22 Jun	-	-	-	-	-
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24 Jun	-	-	-	-	-
25 Jun	-	-	-	-	-
26 Jun	-	-	-	-	-
27 Jun	-	-	-	-	-
28 Jun	-	-	-	-	-
29 Jun	-	-	-	-	-
30 Jun	-	-	-	-	-

	Jun 26	Normal
Average high temperature Av. high temp.	83.4 ºF	37 ºF
Average low temperature Av. low temp.	60.4 ºF	19 ºF
Total precipitation Total precip.	0.67 inch	2.17 inch
Total snowfall Total snowfall	0.00 inch	4 inch

Highest max temperature Highest max temp.	86.0 ºF	-
Lowest max temperature Lowest max temp.	81.0 ºF	-
Highest min temperature Highest min temp.	64.9 ºF	-
Lowest min temperature Lowest min temp.	53.1 ºF	-

Past weather June 2026 incomplete - Missing data

USGS National Map — Open interactive map

Station Data

Monthly averages Jerseyville
Longitude: -90.33, Latitude: 39.12
Average weather Jerseyville, IL - 62052

Monthly: 1991-2020 normals
History: 2007-2026

Abbreviations

Average precipitation in : Av. precipitation in
Jan: January, Feb: February, ...Jan: January, Feb: February, ...Ja: January, Fe: February, ...