Crystal Lawns climate

Crystal Lawns Weather in July

NOAA 1991-2020 normals for Romeoville WFO, 7.2 km from Crystal Lawns

Average highs run from 84°F on July 1 to 84°F on July 31, and lows from 64°F to 64°F. Normal precipitation for the month is 4.50 in over about 10 wet days.

July day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Crystal Lawns, in °F, with the record for each date.406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

July at a glance

Average high
85°F
Average low
65°F
Precipitation
4.50 in
Record high
103°FJul 14, 1995
Record low
47°FJul 1, 2024
Chance of a freeze
0%
Days of 90°F or more
6.0
Daylight
15 h 09 min to 14 h 25 min
Cloud cover
52%
Humidity
76%
Dew point
65°F
Wind
7.8 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Jul 184°F64°F93°F 199147°F 202435%0%
Jul 285°F64°F96°F 200347°F 202435%0%
Jul 385°F64°F94°F 200350°F 200135%0%
Jul 485°F64°F95°F 201250°F 200134%0%
Jul 585°F64°F99°F 201252°F 199734%0%
Jul 685°F64°F101°F 201247°F 198334%0%
Jul 785°F64°F101°F 201248°F 198334%0%
Jul 885°F64°F102°F 201251°F 198334%0%
Jul 985°F65°F97°F 198855°F 198433%0%
Jul 1085°F65°F97°F 198454°F 199633%0%
Jul 1185°F65°F99°F 197652°F 197833%0%
Jul 1285°F65°F96°F 197655°F 197833%0%
Jul 1385°F65°F98°F 198151°F 202433%0%
Jul 1485°F65°F103°F 199550°F 202433%0%
Jul 1585°F65°F101°F 197650°F 202432%0%
Jul 1685°F65°F100°F 198853°F 201432%0%
Jul 1785°F65°F95°F 201252°F 197632%0%
Jul 1885°F65°F99°F 201250°F 197932%0%
Jul 1985°F65°F98°F 199148°F 200932%0%
Jul 2085°F65°F98°F 201148°F 200932%0%
Jul 2185°F65°F98°F 198048°F 200932%0%
Jul 2285°F65°F100°F 199149°F 200932%0%
Jul 2385°F65°F101°F 198349°F 200932%0%
Jul 2485°F65°F94°F 199954°F 200032%0%
Jul 2585°F65°F99°F 198650°F 198232%0%
Jul 2685°F65°F100°F 198653°F 197732%0%
Jul 2785°F65°F98°F 199750°F 197732%0%
Jul 2884°F65°F94°F 198851°F 201332%0%
Jul 2984°F65°F100°F 198350°F 201332%0%
Jul 3084°F65°F97°F 199952°F 201332%0%
Jul 3184°F64°F101°F 199955°F 197832%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Crystal Lawns, in percent, and of at least 0.1 inch of snowfall.0102030401102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

July 1
sunrise 5:22 AM, sunset 8:31 PM
July 31
sunrise 5:46 AM, sunset 8:11 PM

Every day of July: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00117457 (Romeoville WFO), public domain. Records: NOAA GHCN-Daily, station USC00114530, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.