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United States of America

ROBERTS, ILLINOIS


Home > North America > United States > Illinois
Elevation: 226 meters     Latitude: 40 40N     Longitude: 088 11W

WEATHER
 
CURRENT CONDITIONS

Sunrise/Set
06:47 am
08:51 pm
Local Time
4:49 am EDT
3 May, 2024
 
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MONTHLY - ALL WEATHER AVERAGES   [ Show Summary ]
[ °F ]   °C
TEMPERATURE 
Average Temperature
Years on Record: 58  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
C10.7-3.6-1.83.210.516.721.923.622.318.813.24.8-1.8

Average High Temperature
Years on Record: 58  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
C16.61.13.18.516.823.328.629.928.825.920.110.22.8

Average Low Temperature
Years on Record: 58  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
C4.7-8.3-6.7-2.24.39.915.317.115.811.76.2-0.6-6.3

Highest Recorded Temperature
Years on Record: 58  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
C4019.421.126.730.63539.44038.939.433.327.218.3

Lowest Recorded Temperature
Years on Record: 58  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
C-27.8-27.8-26.7-21.1-8.3-3.93.36.12.8-1.1-6.7-22.2-27.2

Average Number of Days Above 90F/32C
Years on Record: 58  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days26.8------------1.47.28.46.23.40.2------

Average Number of Days Below 32F/0C
Years on Record: 58  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days13127.825.421.57.30.7---------0.14.417.226.5

Average Number of Days Below 0F/-17C
Years on Record: 58  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days9.342.20.3---------------------0.12.7



PRECIPITATION 
Average Precipitation
Years on Record: 58  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
mm843444068949691857779685347

Average Number of Days With Precipitation
Years on Record: 58  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days927799108777777

Most Reported Precipitation in a Month
Years on Record: 58  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
mm305173129164248238195221184305233147144

Least Reported Precipitation in a Month
Years on Record: 58  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
mm345142387793434

Most Precipitation Reported in a Day
Years on Record: 58  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
mm128.355.953.18287.9128.368.199.1100.3109.258.759.978

Avg. No. of Days w/Precip. Above 0.2in/5mm
Years on Record: 58  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days63446776555554

Avg. # of Days w/Precip. Above 0.4in/10mm
Years on Record: 58  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days23112333222211

Avg. No. of Days w/Precip. Above 1in/25mm
Years on Record: 58  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days8------11111111------



PRECIPITATION - SNOW 
Average Snowfall
Years on Record: 58  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
cm53.311.914.78.11.8------------------5.111.7

Most Snow Reported in a Month
Years on Record: 58  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
cm35.335.329.232.315.2------------------3029.7



DEGREE DAYS 
Heating Degree Days
Years on Record: 58  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days2112.2507.2411.7302.2107.820---------560247.8450.6

Cooling Degree Days
Years on Record: 58  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days527.8---------536.7120.6162.2128.360.613.90.6---

Growing Degree Days
Years on Record: 58  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Days1744---------15206.7358.3420.2380.626598.2------



SKY CONDITIONS 
Average Length of Day
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Hours12.710.211.212.513.81515.615.314.212.911.510.49.8



SOLAR RADIATION 
Average Daily Solar Radiation - Global
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m213.66.18.912.516.11921.321.618.515.7116.75.3

Average Daily Solar Radiation - Diffuse
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m25.62.73.85.47.18.38.88.27.35.64.232.4

Average Daily Solar Radiation - Reflected
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m21510.212.414.816.317.518.619.218.117.815.110.39.4

Average Daily Solar Radiation - Direct
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m214.99.811.913.815.216.919.420.718.218.415.110.19.2

Maximum Daily Solar Radiation - Global
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m213.66.18.912.516.11921.321.618.515.7116.75.3

Maximum Daily Solar Radiation - Diffuse
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m25.82.83.95.57.28.598.87.66.14.43.12.5

Maximum Daily Solar Radiation - Reflected
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m218.212.815.918.219.521.721.221.219.822.417.815.112.6

Maximum Daily Solar Radiation - Direct
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m220.313.616.719.120.625.925.525.121.526.31916.713.6

Minimum Daily Solar Radiation - Global
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m211.15.37.69.512.515.719.516.816.512.68.64.14.3

Minimum Daily Solar Radiation - Diffuse
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m25.12.63.556.67.387.774.53.82.72.3

Minimum Daily Solar Radiation - Reflected
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m211.78.110.410.712.414.417.1151613.610.85.36.8

Minimum Daily Solar Radiation - Direct
Years on Record: 22  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC  
Mj/m29.97.38.98911.416.212.514.411.89.246




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