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Freeport May Weather

Averages and records for weather in Freeport, Illinois in the month of May.

Typical Freeport May Weather 1991–2020
Average daily high	70.1 °F
Average daily low	48.4 °F
Average monthly precipitation	4.4 inches
Average monthly snow	none
Daily chance of precipitation	42.3%
Daily chance of snow	0%

Freeport May Weather Records 1909–2024
Highest temperature	106 °F	May 31, 1934
Lowest temperature	24 °F	May 10, 1966
Highest daily low	73 °F	May 30, 1953
Lowest daily high	37 °F	May 1, 1909
Hottest average high temperature	83.3 °F	1934
Coldest average high temperature	63.0 °F	1996
Most daily precipitation	2.9 inches	May 13, 1978
Most monthly precipitation	9.2 inches	1996
Most daily snow	2.4 inches	May 3, 1935
Most monthly snow	2.4 inches	1935

Note: Daily averages are a moving average which includes 14 days before and after

Day	Average (°F)		Record (°F)
Day	High	Low	High	Low
May 1	64.4	42.6	90	24
May 2	64.8	42.9	87	25
May 3	65.1	43.3	88	25
May 4	65.4	43.5	90	27
May 5	65.7	43.8	90	27
May 6	66.1	44.1	94	27
May 7	66.5	44.5	90	27
May 8	66.8	45.0	87	28
May 9	67.3	45.4	95	26
May 10	67.6	45.8	89	24
May 11	67.9	46.2	91	31
May 12	68.3	46.6	93	29
May 13	68.8	47.1	94	30
May 14	69.2	47.6	92	29
May 15	69.7	47.9	92	30
May 16	70.2	48.4	88	29
May 17	70.6	48.8	92	30
May 18	71.0	49.1	94	31
May 19	71.4	49.4	95	30
May 20	71.5	49.7	94	30
May 21	71.7	50.0	94	32
May 22	72.0	50.3	92	33
May 23	72.3	50.5	94	29
May 24	72.6	50.8	93	33
May 25	72.8	51.2	92	30
May 26	73.2	51.6	91	32
May 27	73.6	52.0	95	31
May 28	74.0	52.4	96	35
May 29	74.4	52.9	96	34
May 30	74.8	53.3	97	35
May 31	75.1	53.6	106	38

Weather Station Details

Years	Station	Coordinates
1973–2024	Freeport Waste Water Treatment	location
1909–1973	Freeport	location